1. ________ acts on melanocyte (melanin contains cells) and regulates pigmentation of skin.
a) LH
b) Melatonin
c) FSH
d) TSH
Explanation: FSH acts on melanocyte (melanin contains cells) and regulates pigmentation of skin.
2. Pineal gland is located on
a) Dorsal side of mid-brain
b) Dorsal side of hindbrain
c) Dorsal side of forebrain
d) Vertical side of forebrain
Explanation: Pineal gland is located on dorsal side of forebrain.
3. Pineal gland secretes _________ hormone.
a) MSH
b) Melatonin
c) FSJ
d) Insulin
Explanation: Pineal gland secretes Melatonin hormone.
4.Melatonin influences
a) Metabolism, pigmentation
b) Menstrual cycle
c) Defence capability
d) All of these
Explanation: All of these
5. 24 hour diurnal rhythms of our body is maintained by
a) Melatonin
b) Glucagon
c) Thymosin
d) Oxytocin
Explanation: Melatonin
6. Menstruation cycle is affected by the following hormones except
a) Thyroid
b) Melatonin
c) Oestrogen
d) Oxytocin
Explanation: Oxytocin
7. Thin flap of connective tissue which connects two lobes of thyroid is known as
a) Lobes
b) Ileum
c) Isthmus
d) Ampulla
Explanation: Thin flap of connective tissue which connects two lobes of thyroid is known as Isthmus.
8. Which of the following is incorrect about thyroid gland?
a) It is composed of follicles and stromal tissues.
b) It secretes tetraiodothyronine or thyroxine \[\left(T_{4}\right)\] and triiodothyronine \[\left(T_{3}\right)\] , TCT.
c) It consists of 4 lobes.
d) It is stimulated by the hormone TSH.
Explanation: "It consists of 4 lobes". This is incorrect about thyroid gland.
9. Enlargement of thyroid gland is called
a) Hypothyroidism
b) Hyperthyroidism
c) Goitre
d) Isthmusa
Explanation: Enlargement of thyroid gland is called Goitre.
10. The features of cretinism includes
a) Stunted growth
b) Mental retardation and low IQ
c) Abnormal skin and deaf mutism
d) All of these
Explanation: All of these