Human Anatomy Illustrations

Detailed illustrations showcasing human reproductive systems and anatomical structures, providing educational insights into human biology.

Female reproductive system, illustration.

Female reproductive system, illustration.

The anatomy of the breast showing the nipple, mammary glands.

The anatomy of the breast showing the nipple, mammary glands.

Illustration of the ovarian cycle and ovulation.

Cross-section illustration of the abdomen at the waist (L1). From left to right, the liver, kidney, below the duodenum, the vena cava and aorta, the pancreas in the centre, the colon, a small section of the stomach lower right. The spleen is far right, next to the left kidney.

Breast cancer

Site of action of drugs in the treatment of osteoporosis. View of bone trabeculae of spongy bone (blue). Osteoclasts (yellow) destroy the bone, while osteoblasts (roses) make bone. On the left is the osteoclast cycle with, from top to bottom, an osteoclast precursor with RANK receptors, a mature osteoclast destroying the bone, an osteoblast in apoptosis. On the right a pre-osteoblast. A mature osteoblast makes RANK-L that will bind to the pre-osteoclast RANK receptor. Estrogen binds to the estrogen receptor of osteoblasts to inhibit osteoclast activity. Top right, a blood vessel and a bowel in sections.

Composition of blood in a blood capillary. This illustration represents all the elements that make up blood. First of all, the elements of blood are bathed in plasma. The plasma is shown in transparency in yellow. There are erythrocytes, or red blood cells or red blood cells, and platelets, antibodies and white blood cells, actors in the immune reaction. The red blood cells represented in red are the element of the blood in greater number. While the other elements are less numerous. First of all the platelets are the smallest elements (in blue) scattered around the vessel. Antibodies are shown in yellow in the shape of a Y. Then the other elements in purple are white blood cells. A T lymphocyte is located in the center of the vessel in purple and green. While the large purple cell in the foreground, as well as the one that passes through the vessel wall are leukocytes. The first is a monocyte, the second that passes through the wall is a neutrophil. Finally, outside the vessel is a mac

Breast anatomy (dark skin) with nipple, mammillary muscle.

Anatomy of the breast and the principle of lactation with a zoom on a lobule and an acinus in section.

Planaria excretory system.

Illustration of the transmission of a nervous impulse from a neuron to a 2nd neuron. The electrical impulse is transformed into a chemical one, vesicles release glutamate (green) that fix onto receptors (orange) that open sodium channels allowing Na+ ions to penetrate the terminal dendrite buttons, creating an electrical current.

Human alveoli, cut-away computer artwork.

Toxoplasma gondii parasites inside cyst, illustration

Medical of the harmful effects of ultraviolet radiation 3D illustration. Harmful effects of UV light on skin

Illustration of lung alveoli.

Result of angioplasty performed using a balloon catheter. After removal of the catheter, the artery and the atheromatous plaque retain the shape of the balloon, which allows blood to circulate normally again. Here, an example of a coronary artery.

Illustration of the anatomy of the breast. From left to right : - the nipple - mamillary muscle - milk gland - mammary gland - fatty tissue which surrounds the gland - the rear muscle plane with the ribs

Breast anatomy, computer artwork.

Ovarian cycle, ovulation, fertilization, segmentation of the embryo and nidation. - Ovary in cut-away view with different stages of the ovarian cycle : primordial follicle, primary follicle, secondary follicle, tertiary follicle, Graafian follicle, ovulation (Graafian follicle ejecting the ovocyte II it contains), follicular atresia in corpus luteum. - Ovulation : the ovocyte II released by the Graafian follicle is captured by the infundibulum of the Fallopian tube. - Fertilization : at the level of the Fallopian tube, the ovum is fertilized by a spermatozoa. - Segmentation (succession of cellular divisions) of the egg into an embryo of various cells, while it transits into the Fallopian tube. - Nidation of the embryon (blastocyst stage) in the uterine endometrium.

Mucous is another name for the mucous membrane. The mucosa covers the inside of the organs and cavities in your body that are exposed to external particles. 3d illustration. Digestive molecules pass through cell membranes the small intestine into blood or lymph capillaries

Atherosclerosis is a cardiovascular disease characterized by the gradual buildup of plaque in artery walls. 3D rendering. Atherosclerosis is a cardiovascular disease characterized by the gradual buildup of plaque in artery walls.

The allergic reaction has two phases. When the body comes into contact with a certain allergen for the very first time, it becomes primed or sensitized to react against the certain substance. Macrophages (in blue) phagocytose the allergen particles, then pass on information about the allergen to the B lymphocytes, which produce IgE antibodies. The antibodies bind to basophils and mast cells. At the next encounter with this allergen, the allergic process is activated -- the allergen binds to the IgE antibodies, triggering the mast cell and basophils to release histamine that orchestrates the allergic reaction (here, skin rash).

Illustration of the somatotopic arrangement of the somatosensory cortex, ie the arrangement of areas involved in sensory perception of surroundings, found in the sensory area.

Atherothrombosis is a cardiovascular disease characterized by ruptured atherosclerotic plaque and clot formation. 3D rendering. Atherothrombosis is a cardiovascular disease characterized by ruptured atherosclerotic plaque and clot formation.

Cross section of the thorax with the heart, lungs, esophagus and aorta.

Microbiome in the gut as bacteria flora inside an intestine as a digestion symbol inside the intestinal tract with 3D illustration elements.

Red blood cells in blood vessel, illustration.

Olfactory epithelium.

All uses except for pharmaceutical laboratories in Belgium - Structure of the bladder wall, section of the bladder wall. This illustration shows a zoom at the level of the bladder wall with all its structures. The outside of the bladder is at the top and the inside at the bottom. From below at the top we have the bladder cavity (in orange ocher), the epithelium (bluish gray cells), the connective tissue, the muscle made up of three layers and finally the tissue that surrounds the bladder, here the parietal peritoneum. - - Restriction : All uses except for pharmaceutical laboratories in Belgium from 03/28/2022

Medical illustration showing the melanocytes (in yellow) at the level of the cut hair root. The melanocytes, located at the level of the hair matrix, are responsible for its color thanks to melanin, a pigment synthesized by migrating melanocytes. in the hair cells.

Rheumatoid arthritis : joint destruction process, synovial hyperplasia, angiogenesis, edema, lymphocyte infiltration. In the upper left is a joint seen in section with articular destruction with abnormal secretion of synovial fluid, synovial hyperplasia with lymphocyte infiltration and angiogenesis. Below, zoom on the synovium and the process of synovial cell proliferation, the production of proteases and free radicals induced by cytokines TNFa and lymphokines IL1 causing joint destruction.

The mammary glands as modified sweat glands designed to produce and secrete milk. 3D rendering. The mammary glands as modified sweat glands designed to produce and secrete milk.

A cross-section illustration of the sinus mucous membrane, with the layer of cilia that line the sinus.

Breast cancer

Stage 0a superficial bladder cancer. This illustration shows a zoom at the level of the bladder wall with all its structures. From bottom to top we have the bladder cavity, the epithelium (bluish gray cells), the connective tissue, the muscle consisting of three layers and finally the tissue that surrounds the bladder, here the parietal peritoneum. A superficial cancer tumor, or non-invasive papillary urothelial carcinoma is visible in this white drawing.

All uses except for pharmaceutical laboratories in Belgium - Stage 0b superficial bladder cancer. This illustration shows a zoom at the level of the bladder wall with all its structures. From bottom to top we have the bladder cavity, the epithelium (bluish gray cells), the connective tissue, the muscle consisting of three layers and finally the tissue that surrounds the bladder, here the parietal peritoneum. A superficial cancer tumor, or non-invasive papillary urothelial carcinoma is visible in this white drawing. The tumor is limited to the inner layer of the most superficial cells of the bladder wall, therefore at the level of the epithelium. - Restriction : All uses except for pharmaceutical laboratories in Belgium from 03/28/2022

SARS-COV-2 spike protein binding to Ace2 receptor 3D rendering. SARS-COV-2 spike protein binding to Ace2 receptor

Representation of the platelet aggregation (platelets represented in green) intervening in the process of coagulation. Under the action of the thrombin, the fibrogens are transfomed into en fibrins and reinforce the meshing created by the platelet aggregation. Formation of a thrombus or clot.

Tissue blood capillaries connect the arterioles to the venules. These are the smallest blood vessels in the body. Arterioles are connected to arteries of more average caliber. And they represent the arterial circulation from the heart to the tissues (in red). So they provide the cells of the tissues with the nutrients and oxygen necessary for their functioning. The venules represent the venous circulation, from the tissues to the heart (in blue). And they are connected to medium caliber veins. So they recover the waste and the CO2 for their disposal. Thus, these tissue capillaries are organized in tree networks. They are also called capillary beds. And they come together and intertwine in the tissues and therefore interact closely with them. It is also at their level that blood pressure is lowest. (Photo by: JACOPIN/BSIP/UIG)

Intestinal bacteria on villus, scientific illustration

All uses except for pharmaceutical laboratories in Belgium - Stage 0a superficial bladder cancer. This illustration shows a zoom at the level of the bladder wall with all its structures. From bottom to top we have the bladder cavity, the epithelium (bluish gray cells), the connective tissue, the muscle consisting of three layers and finally the tissue that surrounds the bladder, here the parietal peritoneum. A superficial cancer tumor, or non-invasive papillary urothelial carcinoma is visible in this white drawing. The tumor is limited to the inner layer of the most superficial cells of the bladder wall, therefore at the level of the epithelium. - - Restriction : All uses except for pharmaceutical laboratories in Belgium from 03/28/2022

Illustration of alveoli and capillaries.

Human vein, cut-away computer artwork.

Medical illustration showing the melanocytes (in yellow) in the epidermis of the skin in section. Melanocytes, located at the level of the basal layer, are responsible for the color of the skin thanks to melanin, a pigment synthesized by melanocytes that migrate into the cells of the epidermis (keratinocytes).

The Penis Transverse Cross Section 3D rendering. The Penis Transverse Cross Section

Chronic obstructive pulmonary disease COPD and its treatments. At the top left the lungs with the bronchial tree in transparency, from where a sub-segmental bronchus in zoom. A transected left bronchiole is normal. The transected right bronchiole shows bronchoconstriction with hypersecretion of mucus, inflammatory cells producing cytokines in the mucosa. Below the pulmonary lobules. On the left, the alveolar sacs are normal, on the right, an emphysema seen in section shows the distended alveoli.

All uses except for pharmaceutical laboratories in Belgium - Stage 0a and 0is superficial bladder cancer, urothelial and in situ carcinoma. This illustration shows a woman's bladder with, in the upper right of the bladder wall, an in situ stage 0is carcinoma. A zoom at the level of the bladder wall with all its structures allows to see the appearance of this high grade tumor, represented in white. The tumor is still limited to the layer of the most superficial cells of the wall of the bladder, therefore at the level of the epithelium. However, it is larger than the stage 0a tumor (non-invasive papillary urothelial carcinoma) shown in the zoom in the foreground on the right. - - Restriction : All uses except for pharmaceutical laboratories in Belgium from 03/28/2022

Human vein, cut-away computer artwork.

Zoom of a pancreatic acinus and its blocked duct.

Illustration of red blood cells and cholesterol clogging the cause of death.

Genital herpes lesions (blisters) on a penis and close-up view of Herpes simplex virus II, computer illustration. Genital herpes is caused by infectio...

Immune reaction triggered by molecules of the AIDS virus injected by vaccination.

Human vein, cut-away computer artwork.

Illustration of what causes pruritus, a common symptom including an itching sensation in the skin, most commonly caused by skin lesions. The main agent responsible for itching is histamine, released by basophil granulocytes (cells that flow in the blood and contribute to the immune system). On the left, healthy skin with disease agents on the surface that penetrate the skin. On the right, mastocytes that have migrated from the blood vessel to the epidermis, causing histamine to be secreted as part of the immune reaction, which produces local inflammation with swelling, red patches and itching. Histamine heads to the blood vessel in order to rally other mastocytes to the site.

A blood clot in a vein, or venous thrombus, is the clumping of blood in vessels that bring blood back to the heart. 3D rendering. A blood clot in a vein, or venous thrombus, is the clumping of blood in vessels that bring blood back to the heart.

Innate immunity and adaptive immunity, the defenses of the immune system. When a micro-organism or microbe (virus, bacterium) penetrates the barriers of the organism (skin, mucous membranes) innate immunity (on the left of the drawing) acts immediately. This first immune reaction stops the progression and development of microbes in the body. Macrophages, dendritic cells and neutrophils are players in innate immunity. Macrophages (in bluish green) destroy microbes by phagocytosis and produce cytokines. These cytokines call on neutrophils (among other things) to also fight against microbes. But these cytokines also drive macrophages and dendritic cells to the lymph nodes (white arrows). If despite everything, the microbes proliferate and spread in the body, adaptive immunity comes into play (on the right of the drawing). Dendritic cells and macrophages present microbe antigens to B (blue) and T (purple) lymphocytes. There are 4 kinds of T lymphocytes. On the one hand, cytotoxic T lymphoc

Bloating and excess gas in intestine

Stage II testicular cancer is characterized by the spread of cancer to nearby regional lymph nodes. 3D rendering. Stage II testicular cancer is characterized by the spread of cancer to nearby regional lymph nodes.

2D skin section with healthy hair (as opposed to pimple) with epidermis, dermis and hypodermis, sebaceous gland, arrector muscle, outer and inner epithelial sheath, hair shaft, sebum and hair bulb, medulla (medula), cuticle, cortex and papilla dermal.

Detailed cutaway diagram of human skin.

Brain abscess caused by Toxoplasma gondii, illustration

Illustration of the human alveoli

Atherosclerosis is a cardiovascular disease characterized by the gradual buildup of plaque in artery walls. 3D rendering. Atherosclerosis is a cardiovascular disease characterized by the gradual buildup of plaque in artery walls.

Lung capillary, TEM

The taste receptors are located around the small structures known as papillae found on the upper surface of the tongue, soft palate, upper esophagus, the cheek, and epiglottis. 3d illustration. Taste buds contain the taste receptor cells, which are also known as gustatory cells.

The skin is a vital organ that covers the entire outside of the body, forming a protective barrier against pathogens and injuries from the environment.. Your skin has three layers that house your sweat and oil glands, hair follicles, melanocytes, and blood vessels.

Atherothrombosis is a cardiovascular disease characterized by ruptured atherosclerotic plaque and clot formation. 3D rendering. Atherothrombosis is a cardiovascular disease characterized by ruptured atherosclerotic plaque and clot formation.

Illustration of chicken pox and shingles. Chicken pox is caused by the chicken pox-shingles virus which is characterised by an outbreak of small red blisters on the skin and a high temperature in children. In adults it can be virulent. Its secondary reactivation leads to shingles.

Illustration of the ciliated cells of the sinus. These cells drain mucus that traps external particles. In the case of sinusitis, the ciliated cells don't play their irrigation role as efficiently, allowing external particles to proliferate, causing congestion of the mucous membrane, as well as swelling and obstruction of the sinuses.

Zoom of a pancreatic acinus and its blocked duct.

Synapse of dopamine neurons that causes the effect of most drugs.

Innate immunity and adaptive immunity, the defenses of the immune system. When a micro-organism or microbe (virus, bacterium) penetrates the barriers of the organism (skin, mucous membranes) innate immunity (on the left of the drawing) acts immediately. This first immune reaction stops the progression and development of microbes in the body. Macrophages, dendritic cells and neutrophils are players in innate immunity. Macrophages (in bluish green) destroy microbes by phagocytosis and produce cytokines. These cytokines call on neutrophils (among other things) to also fight against microbes. But these cytokines also drive macrophages and dendritic cells to the lymph nodes (white arrows). If despite everything, the microbes proliferate and spread in the body, adaptive immunity comes into play (on the right of the drawing). Dendritic cells and macrophages present microbe antigens to B (blue) and T (purple) lymphocytes. There are 4 kinds of T lymphocytes. On the one hand, cytotoxic T lymphoc

Illustration of the capillaries and alveoli of the lungs.

Chronic obstructive pulmonary disease COPD and its treatments. At the top left the lungs with the bronchial tree in transparency, from where a sub-segmental bronchus in zoom. A transected left bronchiole is normal. The transected right bronchiole shows bronchoconstriction with hypersecretion of mucus, inflammatory cells producing cytokines in the mucosa. Below the pulmonary lobules. On the left, the alveolar sacs are normal, on the right, an emphysema seen in section shows the distended alveoli.

Conceptual image of alveoli.

lymph node.

Anatomy of the hen's reproductive system with ovary, follicles, infundibulum and cloaca.

Spinal cord, illustration

Mesenteric ischaemic, illustration.

The tissue of the small intestine is responsible for absorbing nutrients from food during digestion. 3D rendering. The tissue of the small intestine is responsible for absorbing nutrients from food during digestion.

Cross-section illustration of the spinal nerves dorsal root on either side of the spinal gland. The ventral root degenerates and leads to the loss of feeling in the innervated zone. The blue arrow indicates the direction of the degeneration.

Small Intestine Large Intestine

Illustration of a healthy nasal mucous membrane coming into contact with allergens (on the left) and the reaction that follows infection (on the right) : overproduction of mucus (yellow), destruction of the mucous membrane epithelial, dilation of blood vessels, immune reaction in the macrophages and lymphocytes (pink cells in the blood vessel) as a result of inflammation (red area).

Pseudostratified columnar epithelium, illustration

Blood cholesterol. Veins and arteries with fat. Problem with vascular system. Medicine and health. Blood clot and clogged vessel. Scientific educational scheme. Flat cartoon. Blood cholesterol. Veins and arteries with fat

Hair follicle, illustration

Pneumonia and Pulmonary alveoli with fluid or alveolus inflammation anatomy diagram as a medical concept of a lung anatomy and respiratory and medicine as a 3D illustration isolated on a white background.

Ischaemic stroke, illustration.

Anatomical model of human skin

The large intestine is the final part of the gastrointestinal tract and digestive system in vertebrates. 3D illustration. The large intestine includes the colon, rectum and anus.

Anatomy and physiology of the renal system, kidney, glomerulus and renal physiology. This illustration represents the anatomy of the urinary system and more particularly of the kidney and the glomerulus. From left to right, the urinary system is represented in a woman's silhouette with the kidneys, adrenal glands, ureters, bladder. In addition, we distinguish the vascularization of the kidney with the renal veins and arteries from the inferior vena cava and the abdominal aorta.

Healthy male bladder, computer artwork.

Cytomegalovirus infection, illustration

3D illustration. Fresh slices or meat. Marbling of pork or beef tenderloin for steak.

Bladder cancer stages, illustration.

3D-Darstellung eines ausgefallenen und verengten Blutgefäßes oder einer Arteriosklerose 3d illustration of a precipitated and narrowing blood vessels or arteriosclerosis Copyright: xZoonar.com/ChristophxBurgstedtx 22602793

Illustration of the human alveoli

The bone marrow is where the blood cells are regenerated. Shown here, red blood corpuscles being produced by the bone marrow.

Smooth muscle, illustration. This muscle lines the blood vessels, digestive tract and genitourinary tract.

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