All the following regarding regulation of a physiological function by either a neurotransmitter or a hormone are true except:
1. Target cells must have specific receptor proteins with which these molecules combine.
2. When these molecules bind to target cells, specific sequences of changes must occur.
3. There must be an “off-switch” that will stop the induced changes.
4. Second messengers will always be involved in the response of the target cell.

Adenohypophysis is an endocrine gland that secrets all the following except:
1. corticotropin
2. luteinizing hormone
3. somatostatin
4. somatotropin

A hormonal disorder that develops when pituitary gland produces too much growth hormone during adulthood is known as:
1. cretinism
2. giantism
3. Conn’s syndrome
4. Acromegaly

Match each item in Column I with one in Column II and choose your answer from the codes given below:
            Hormone                       Action
         A. Estrogen               a. Supports pregnancy
         B. Progesterone        b. Secondary sexual characters in females
         C. FSH                      c. Regulates spermatogenesis
         D. LH                         d. Ovulation

                 A.   B.   C.    D.
          1.    b    a     c     d
          2.    a    c     b     d
          3.    a    b     d     c
          4.    a    b     c     d

The basal part of diencephalon is

1.  Hypothalamus

2.  Epithalamus

3.  Thalamus

4.  Both B and C

Group of neurosecretory cells found in hypothalamus is known as

1.  ganglia

2.  nuclei

3.  Tract

4.  nerve

Which of the following types of hormones are  released by Hypothalamus

1.  Releasing hormones

2.  Inhibitory hormones

3.  Both A and B

4.  None of these

GnRH is released by which of the following endocrine system?

(1)Hypothalamus

(2)Anterior pituitary gland

(3)Posterior pituitary gland

(4)Ovary

Somatostatin is released by which of the following endocrine system?

(1)Hypothalamus

(2)Anterior pituitary gland

(3)Posterior pituitary gland

(4)Thyroid gland

Which gland is under the direct neural regulation of hypothalamus?

(1)Pineal gland

(2)Anterior pituitary gland

(3)Posterior pituitary gland

(4)Thyroid gland