Question

question 16
what gland is essential for development of t - cells?
thymus
pancreas
thyroid
pituitary

question 17
the hormone that helps the body deal with stress is:
parathormone
thyroxine
aldosterone
epinephrine

question 18
what is caused by adrenal cortex hypersecretion?
addisons disease
diabetes mellitus
goiter
cushings syndrome

Explanation:

• Question 16: The thymus is the gland where T - cells (a type of white blood cell) mature. The pancreas is involved in digestion and blood sugar regulation (producing insulin and glucagon). The thyroid produces hormones like thyroxine that regulate metabolism. The pituitary is the'master gland' that controls other endocrine glands but is not specifically for T - cell development.
• Question 17: Epinephrine (adrenaline) is released in response to stress. It increases heart rate, blood pressure, and blood flow to muscles. Parathormone regulates calcium levels. Thyroxine regulates metabolism. Aldosterone regulates salt and water balance.
• Question 18: Cushing's syndrome is caused by excessive cortisol (a hormone from the adrenal cortex). Addison's disease is due to adrenal cortex hyposecretion. Diabetes mellitus is related to insulin (pancreas) issues. Goiter is usually due to thyroid problems (e.g., iodine deficiency affecting thyroid hormone production).

Answer:

• Question 16: Thymus
• Question 17: epinephrine
• Question 18: Cushing's syndrome