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Structure of a Nephron. urine formation (filtration, reabsorption, secretion, excretion). liquid enters to the glomerulus (in Browman's capsule) goes down by the loop of henle to collecting duct
A Vector of Girl Lung Infection illustration
Perspiring Anatomical Human Skin Layers Cross Section Vector Illustration Diagram Poster with Sweat Secreting Cells in Hot Body Temperature in the Sun or while Exercising.
Leptin hormone role in schematic vector illustration diagram. Educational medical information.
The obstetrician on a hat,mask,gloves and plastic cloth preparing in labor room over Incubators ,He's wearing a mask,hair cap,glasses,sterile gloves and plastic cloth for protect secretion of patient,
Virus can spread through the touch water, saliva, secretion, toys, or snot.
Viruses cause red blisters neck, tongue, gums, cheeks, palms, foot, and fever headaches.
Text sign showing Thyroid. Conceptual photo Gland in neck Secretes hormones regulating growth and development
Stress response system vector illustration diagram, nerve impulses scheme. Educational medical information.
pancreas secreting insulin 3d illustration
Stress response system vector illustration diagram, nerve impulses scheme. Educational medical information. Expressive cartoon characters.
Plants secrete resins and rosins for their protective benefits in response to injury. The resin protects the plant from insects and pathogens. Resins confound a wide range of herbivores and insects.
B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype. They function in the humoral immunity component of the adaptive immune system by secreting antibodies.
Human parathyroid hormone, molecular model, 3D illustration. Also called parathormone, parathyrin, is secreted by the parathyroid glands and takes part in bone remodeling
 Control of Glucose Metabolism. Nutrients, Leptin and the Central Nervous System
Ants Milking and Farming Aphids. Aphids secrete a substance called honeydew is a favorite food of ants.
Aphids secrete a substance called honeydew is a favorite food of ants.
Aphids secrete a substance called honeydew is a favorite food of ants.
Cytokines and Cytokine receptor. signal transduction between cells. endocrine, paracrine and autocrine secretion
B-cell and T helper cell. 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

Medical laboratory abbreviation PTH or parathyroid hormone, which is secreted by  parathyroid gland and using his blood test may diagnose organ disease. Word PTH near model of thyroid, lab test tube
Salivary Gland Structure. Histology of salivary glands. Structure and cellular composition of mature salivary glands.
Round-leaved sundew - macro shot of the tentacles with their sticky secretion
Stress response system vector illustration diagram, nerve impulses scheme. Educational medical information.
Exocytosis. Cell transports molecules out of the cell. vesicles are carried to the cell membrane, fuses with membrane, contents are secreted into the extracellular environment.
The anotomic Neuros System. Sympathetic division. Parasympathetic division.
The obstetrician on a cap,mask,gloves and plastic cloth preparing in labor room over Incubators ,He's wearing a mask,hair cap,glasses,sterile gloves and plastic cloth for protect secretion of patient,
Round-leaved sundew - macro of the tentacles with their sticky secretion
Anatomical model of pancreas with stethoscope, which test it on white background. Concept for diagnosis, treatment, prevention and diet in pancreatic diseases such as pancreatitis, diabetes, cancer
women head with dandruff Caused by the problem of dirty. Or caused by skin disease or Seborrheic Dermatitis. It has white scaly and it will cause itch.
Cytokines and Cytokine receptor. signal transduction between cells. endocrine, paracrine and autocrine secretion
insulin acts as the key which unlocks the cell to allow glucose to enter the cell and be used for energy. Insulin is a hormone secreted by the pancreas in response to elevated blood levels of glucose.
Big tusker elephant bull in musth from the side, South Africa. Temporal gland secretion visible.