What Is AVN?
AVN- Atrio Ventricular Node is also called pacesetter. It is a mass of modified heart muscles situated in the lower... View Article
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What Are The Functions Of Cartilaginous Joint And Fibrous Joint?
Cartilaginous Joints: These joints form the connecting tissue between two or more bones with the help of a disc or... View Article
What Is Uricotelism?
Uricotelism is the biological process of excreting uric acid from the body. Birds, insects, land snails and reptiles are a... View Article
What Is Pivot Joint?
The pivot joint is a synovial joint, which is present between the atlas and the axis in humans. This joint... View Article
What Is Arteriosclerosis?
Arteriosclerosis is the thickening or hardening and loss of elasticity of the walls of arteries. Arteriosclerosis is a cardiovascular disease,... View Article
How Is Pulmonary Artery Different From Pulmonary Vein?
Both pulmonary artery and pulmonary vein are blood vessels, which are involved in the transportation of blood. Pulmonary Artery The... View Article
Why Is Blood Group Ab Is Considered As Universal Recipient?
AB blood group is considered as the universal recipient because an individual with this blood type can receive blood from... View Article
How Does Serum Differ From Plasma?
Serum It is a liquid portion of blood, which separates when blood coagulates. Serum lacks clotting factors like fibrinogen. Plasma... View Article
Are Lymphocytes Granulocytes?
Lymphocytes are white blood cells and are agranulocytes. White blood cells include both granulocytes and agranulocytes. Granulocytes: A type of... View Article
What Is Androgen Hormone in Female?
Androgens are the main hormones responsible for regulating the development of male reproductive organs and sexual characteristics. Androgens are also... View Article
What Type of Hormone Is Epinephrine?
Epinephrine or adrenaline is an amino-acid derivative. It is a catecholamine. It is secreted by the adrenal medulla. Also Check:... View Article
Is the Adrenal Medulla Part of the Endocrine System?
Yes, the adrenal medulla is a part of the endocrine system. It releases hormones adrenaline and noradrenaline. Adrenal medullary cells... View Article
What Does the Brain Stem Do?
The brain stem connects the brain to the spinal cord. It is made up of the midbrain, pons and medulla... View Article
What Triggers the Fight or Flight Response?
Fight or flight response is triggered by the sympathetic nervous system. It stimulates the release of catecholamines from the adrenal... View Article
What Cells Secrete Epinephrine and Norepinephrine?
Cells of the adrenal medulla known as chromaffin cells secrete epinephrine and norepinephrine. These are catecholamines and are responsible for... View Article
What Stimulates Chromaffin Cells?
The chromaffin cells are present in the adrenal medulla and release catecholamines. These chromaffin cells are modified by postganglionic sympathetic... View Article
What Organs Are Involved in the Fight or Flight Response?
The adrenal medulla releases two hormones adrenaline and noradrenaline, which are called fight or flight hormones. They initiate various stress... View Article
What Organ Produces Gonadocorticoids?
Gonadocorticoids are secreted by the adrenal cortex. It is produced by the inner layer of the adrenal cortex called zona... View Article
What Is the Function of the Chromaffin Cells in the Adrenal Medulla?
Chromaffin cells release catecholamines, adrenalin and noradrenalin. These cells are in close contact with the sympathetic nervous system. Also Check:... View Article
How Is the Adrenal Medulla Involved in the Fight or Flight Response?
The adrenal medulla releases epinephrine and norepinephrine, which initiate a fight or flight response. They increase alertness, cause sweating, pupil... View Article
