48,728 system function illustrations & vectors are available royalty-free.

Pancreas Physiology. secretory function. Enzymes: amylase, lipase, protease (digestive system) and Hormones: pancreatic polypeptide, somatostatin, insulin, glucagon (endocrine system). Human anatomy. System function vectors
Pancreas Physiology. secretory function. Enzymes: amylase, lipase, protease (digestive system) and Hormones: pancreatic polypeptide, somatostatin, insulin, glucagon (endocrine system). Human anatomy. System function vectors
Human kidney function medical concept with a cross section of the inner organ with red and blue arteries and adrenal gland with gears and cogs as a health care illustration of the anatomy of the urinary system. System function illustrations
Human kidney function medical concept with a cross section of the inner organ with red and blue arteries and adrenal gland with gears and cogs as a health care illustration of the anatomy of the urinary system. System function illustrations
Fight-or-flight response is a physiological reaction that occurs in response to threat to life. stress response system. Adrenaline and Norepinephrine. female silhouette with highlighted internal organs. Vector diagram for educational, medical, biological and science use. System function vectors
Fight-or-flight response is a physiological reaction that occurs in response to threat to life. stress response system. Adrenaline and Norepinephrine. female silhouette with highlighted internal organs. Vector diagram for educational, medical, biological and science use. System function vectors
Limbic system. Cross section of the human brain. Anatomical components of limbic system: Mammillary body, pituitary gland, amygdala, hippocampus, thalamus, cingulate gyrus, corpus callosum, hypothalamus. Vector illustration for medical, biological, and educational use. System function vectors
Limbic system. Cross section of the human brain. Anatomical components of limbic system: Mammillary body, pituitary gland, amygdala, hippocampus, thalamus, cingulate gyrus, corpus callosum, hypothalamus. Vector illustration for medical, biological, and educational use. System function vectors
B-cell and T helper cells. Basic B-cells function: bind an antigen, receive help from a T helper cell, and differentiate into a plasma cell that secretes large amounts of antibodies. Human immune system. System function vectors
B-cell and T helper cells. Basic B-cells function: bind an antigen, receive help from a T helper cell, and differentiate into a plasma cell that secretes large amounts of antibodies. Human immune system. System function vectors
Synapse and Neurons sending electrical signals and chemical signaling to human receptor cells as a neurotransmission for the brain and nervous system in the function of anatomy of the body. System function illustrations
Synapse and Neurons sending electrical signals and chemical signaling to human receptor cells as a neurotransmission for the brain and nervous system in the function of anatomy of the body. System function illustrations
Human lungs health medical care symbol with gears and cogs connected together breathing oxygen representing the function of a healthy lung organ and anatomy. System function illustrations
Human lungs health medical care symbol with gears and cogs connected together breathing oxygen representing the function of a healthy lung organ and anatomy. System function illustrations
Neurons and synapse sending biological electrical signals and chemical signaling to human receptor cells for the brain and nervous system in the function of anatomy of the body. System function illustrations
Neurons and synapse sending biological electrical signals and chemical signaling to human receptor cells for the brain and nervous system in the function of anatomy of the body. System function illustrations
Human anatomy set. Endocrine system pituitary gland, pineal gland, testicle, ovary, pancreas, thyroid, thymus, adrenal gland Vector illustration isolated on a dark grey background. System function vectors
Human anatomy set. Endocrine system pituitary gland, pineal gland, testicle, ovary, pancreas, thyroid, thymus, adrenal gland Vector illustration isolated on a dark grey background. System function vectors
Fatty liver disease and hepatic steatosis body part as a medical health care concept of the digestive system anatomy and vital organ for digestion functions in a 3D illustration style. System function illustrations
Fatty liver disease and hepatic steatosis body part as a medical health care concept of the digestive system anatomy and vital organ for digestion functions in a 3D illustration style. System function illustrations
Leptin is a hormone made by adipose cells that helps regulate appetite, control of metabolism, energy homeostasis, activation of immune cells, and other function. Human endocrine system. System function vectors
Leptin is a hormone made by adipose cells that helps regulate appetite, control of metabolism, energy homeostasis, activation of immune cells, and other function. Human endocrine system. System function vectors
Human brain intelligence with an anatomical medical symbol of a head with neurons firing and glowing showing neurological function related to memory and mental health and medicine. System function illustrations
Human brain intelligence with an anatomical medical symbol of a head with neurons firing and glowing showing neurological function related to memory and mental health and medicine. System function illustrations
Types of Muscle Tissue of Human Body Diagram including cardiac skeletal smooth. Examples of heart digestive system. Along with involuntary voluntary control for medical science education. System function vectors
Types of Muscle Tissue of Human Body Diagram including cardiac skeletal smooth. Examples of heart digestive system. Along with involuntary voluntary control for medical science education. System function vectors
The islets of Langerhans are responsible for the endocrine function of the pancreas. Each islet contains beta, alpha, and delta cells that are responsible for the secretion of a hormones. System function vectors
The islets of Langerhans are responsible for the endocrine function of the pancreas. Each islet contains beta, alpha, and delta cells that are responsible for the secretion of a hormones. System function vectors
Alcoholism. Some of the possible long-term effects of alcohol an individual may develop: atherosclerosis, cirrhosis, pancreatitis, damage to brain function, chronic heart failure, reproductive dysfunction. System function vectors
Alcoholism. Some of the possible long-term effects of alcohol an individual may develop: atherosclerosis, cirrhosis, pancreatitis, damage to brain function, chronic heart failure, reproductive dysfunction. System function vectors
Healthy heart and mind with a tree in the shape of a human head and a heart organ as roots growing under ground representing the medical and health care biological connection between brain intelligence with blood circulation system. System function illustrations
Healthy heart and mind with a tree in the shape of a human head and a heart organ as roots growing under ground representing the medical and health care biological connection between brain intelligence with blood circulation system. System function illustrations
Cartoon human body organs. Healthy digestive, circulatory. Organ anatomy icons for medical chart, gastrointestinal system, intestine heart brain and gallbladder. Medicine vector isolated icons set. System function vectors
Cartoon human body organs. Healthy digestive, circulatory. Organ anatomy icons for medical chart, gastrointestinal system, intestine heart brain and gallbladder. Medicine vector isolated icons set. System function vectors
Hyperthyroidism and Hypothyroidism comparisons. disorders of the endocrine system. Female with Signs and symptoms of different thyroid gland diseases. System function vectors
Hyperthyroidism and Hypothyroidism comparisons. disorders of the endocrine system. Female with Signs and symptoms of different thyroid gland diseases. System function vectors
Photosynthesis leaf vector illustration. Labeled educational scheme where light energy converts to chemical sugars. Natural botanic process visualization with stages explanation. Closeup plant system. System function vectors
Photosynthesis leaf vector illustration. Labeled educational scheme where light energy converts to chemical sugars. Natural botanic process visualization with stages explanation. Closeup plant system. System function vectors
Modern thin line icons set of data science technology and machine learning process. Premium quality outline symbol collection. Simple mono linear pictogram pack. Stroke vector logo concept for web graphics. System function vectors
Modern thin line icons set of data science technology and machine learning process. Premium quality outline symbol collection. Simple mono linear pictogram pack. Stroke vector logo concept for web graphics. System function vectors
When a hormone outside of a capillary, it can act on a target cell. A steroid hormone is capable of crossing through the cell membrane of the target cell. A protein hormone attaches to the cells membrane and activates a receptor that releases, in turn, a messenger within the cell. System function vectors
When a hormone outside of a capillary, it can act on a target cell. A steroid hormone is capable of crossing through the cell membrane of the target cell. A protein hormone attaches to the cells membrane and activates a receptor that releases, in turn, a messenger within the cell. System function vectors