Answer
1. Option C) Oxytocin
- Oxytocin is not secreted by anterior pituitary gland as it is
secreted by posterior pituitary gland.
 
- Oxytocin enhances milk release from mammary glands and promote
uterine contractions during labor.
 
2. Option B) Posterior pituitary
- Anti-diuretic hormone is released by posterior pituitary along
with oxytocin.
 
- ADH acts in collecting ducts to increase water
reabsorption.
 
3. Option C) Oxytocin and Anti-diuretic
hormone
- Oxytocin and Anti-diuretic hormone is produced by hypothalamus
and is stored in posterior pituitary gland,
 
- Nerve stimulus from hypothalamus, stimulates their release from
posterior pituitary gland.
 
4. Option A) Insulin
- Insulin is secreted by beta cells in endocrine pancreas.
 
- Insulin acts on liver and muscle cells to initiate glucose
uptake.
 
- This reduces blood glucose levels.
 
5. Option A) Hypothalamus
- Releasing and inhibiting hormones produced by hypothalamus
controls release of tropic hormones from anterior pituitary
gland.