What are the 2 modes through which the Hypothalamus causes the release of Hormones by pituitary gland?
Through Hypothalamic Neurons control anterior Pituitary Gland. Through Neutral regulation controls posterior Pituitary Gland.
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20
What are Gonadotrophis?
These are the Gonad stimulating hormones secreted by the anterior lobe of Pituitary
Eg. Follicle stimulating Hormone and Prolactin.
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10
Name the hormone secreted from Outermost cellular Layer of Adrenal Cortex.
Aldosterone, a mineralocorticoid
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15
Name to glands Which are BOTH Exocrine and Endocrine.
Liver and Pancreas are both Exocrine and Endocrine.
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20
Old people have weak immune system. What could be the reason?
Thymus is degenerated in old individual resulting in a decreased production of Thymosins. As a result the immune responses of old persons become weak.
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15
What is erythropoiesis? Which hormone stimulates it?
Formation of RBC is known as erythropoiesis and the hormone erythropoietin stimulates the process.
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10
Name the Gland which secretes Vasopressin.
It is secreted by posterior part of the Pituitary Gland
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25
What is Corpus Luteum? How does it function as a Endocrine Gland?
Corpus Luteum is the structure formed by the ruptured Ovarian Follicle after Ovulation. It secretes the hormone Progestrone, necessary for pregnancy changes.
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15
What is the Function of Leydig's cells? Explain Briefly.
Leydig cells or Intestinal cells of the testes secretes testosterone hormone. It stimulates the development of external male sex characters.