Q. No 1. Answer :
The target cells are having receptors, when the hormones are secreted by the glands, which will go towards to the target cells and binds with receptors.
* These receptor cells will stimulate the inhibition and secretion of hormones.
* particular cells are having target cell receptors for perticular hormones, if there is no exact or related target cell receptors it will not respond to hormones.
* in the target cell proteins receptors will recognize the particular hormones, if those proteins receptors are damaged it may leads to fail to respond hormones.
Q. No 3. Answer :
Cause of hyper and hypo pituitarism :
* pituitary tumours and adenomas are Main causes for these.
* these are inheritance disorders.
* in adults mainly due to traumatic brain injury also hypopituitarism.
Higher risk for developing these disorders includes head injuries, brain tumors, any pituitary tumours, radiation treatment, autoimmune inflammation, stroke, and infections in the brain like menigitis and meningeal tuberculosis etc these are the main risk factors to develop a hypo and hyper pituitarism.
Q. No 4. Answer :
Manifestations and consequences of pituitary adenomas:
* head ache
* vision loss due to pressure on optic nerve.
* unexplained weight loss or weight gain
* nausea
* vomiting
* feeling cold
* tiredness and weaknesses
* menstrual changes in females and erectile dysfunction in males.
Prolactinomas manifestations :
* infertility
* erectile dysfunction
* emotional changes.
Q. No 7 .Answer :
Difference between primary and secondary hyper parathyroidism
* primary hyper parathyroidism may comes from parathyroid gland.
* secondary hyper parathyroidism can come due to other organs failures such as kidney failure leads to over secretion of parathyroid hormones.
* in primary high parathyroid hormone levels seen in blood, and high calcium levels also.
* in secondary vitamin D deficiency and low calcium levels in the blood we will see.
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