The Pineal Gland

Q.

The hypothalamic hormone GnRH, which is essential for reproduction, works on

1. Posterior pituitary gland promotes the release of oxytocin and FSH

2. Anterior pituitary gland and promotes the release of LH and FSH

3. Anterior pituitary gland and promotes the release of oxytocin and LH

4. Posterior pituitary gland and promotes the release of LH and relaxin.

Q. The posterior pituitary is under the-

1. Direct axonal regulation of the adenohypophysis
2. Direct axonal regulation of the neurohypophysis
3. Direct neural regulation of the adenohypophysis
4. Direct neural regulation of the hypothalamus

Q.

What is the full form of PRL?

Q. How many of the following hormones are produced in women only during pregnancy?
hCG, Oestrogen, Relaxin, Progesterone, hPL, Inhibin, Activin

1. 3
2. 5
3. 4
4. 2

Q.

Enzymes, vitamins, and hormones are common in______.

Q. Pineal gland secretes melatonin and melanocyte secretes melanin.

1. True
2. False

Q.

Which one of the following is also known as ADH?

1. Oxytocin

2. Vasopressin

3. Adrenaline

4. Calcitonin

Q.

A hormone responsible for normal sleep-wake cycle is

(a) epinephrine

(b) gastrin

(c) melatonin

(d) insulin

Q. The pineal body is located in _____________

1. the dorsal side of the forebrain
2. the sella turcica
3. the basal part of the diencephalon in the forebrain
4. the back side of the thyroid gland

Q. Insulin secretion is inhibited by

1. adrenaline
2. acetylcholine
3. vagal stimulation
4. glucose

Q. Which hormone is responsible for sleep?

Q. Which of the following is not the function of oxytocin?

1. Ejection of milk
2. Production of milk
3. Uterine contraction
4. Breast development

Q.

Melanocytes are present in the layer __________.

Q. Melanocyte stimulating hormone (MSH) in lower organisms is released by:

1. Hypothalamus
2. Pars nervosa
3. Pars distalis
4. Pars intermedia

Q. Identify the hormone with its correct matching of source and function.

1. Oxytocin - posterior pituitary, growth and maintenance of mammary glands
2. Melatonin - pineal gland, regulates the normal rhythm of sleep-wake cycle
3. FSH - hypothalamus, stimulates growth and development of the ovarian follicles in females
4. ACTH - thyroid, regulation of the basal metabolic rate

Q. Hormones like ADH and oxytocin produced by the hypothalamus are stored in

1. anterior pituitary
2. posterior pituitary
3. both anterior and posterior pituitary
4. none of the above

Q.

State the exact location of adrenal gland.

Q. Choose the incorrect statement with respect to the hormone melatonin.

1. Melatonin plays a very important role in the regulation of a 24-hour (diurnal) rhythm of our body.
2. Iodine is essential for the normal rate of synthesis of melatonin in the pineal gland.
3. It helps in maintaining the normal rhythms of the sleep-wake cycle.
4. It influences metabolism, pigmentation, the menstrual cycle as well as our defense capability.

Q.

What hormone does the hypothalamus produce?

Q.

Identify the statement as true/false:

The master endocrine gland in human body is the adrenal gland.

1. True
2. False

Q. The pineal gland secretes _________

1. melatonin
2. thyroxine
3. somatostatin
4. gonadotropin releasing hormone

Q. Assertion :Melatonin influences the menstrual cycle, pigmentation and defense capability. Reason: Melatonin plays an important role in the regulation of diurnal rhythm of our body.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Pineal gland secretes melatonin and melanocyte secretes melanin.

1. True
2. False

Q. Which hormone/gland acts in biological clocks ?

1. Thyroid
2. Adrenal
3. Pineal
4. Thymus

Q. Pineal body originates from

1. Ventral part of diencephalon
2. Ventral part of cerebellum
3. Dorsal part of diencephalon
4. Dorsal part of cerebellum

Q.

Mention any one role of melatonin?

Q.

The hormone that regulates the basal metabolic rate_______________.

Q. The pineal gland secretes _________

1. melatonin
2. thyroxine
3. somatostatin
4. gonadotropin releasing hormone

Q. Endocrine gland that functions as biological clock and a neurosecretory transducer is __________.

1. Adrenal gland
2. Pineal gland
3. Thyroid gland
4. Thymus gland

Q. Hormone regulating diurnal rhythm/sleep wake cycle is

1. Thymosin
2. Glucagon
3. Melatonin
4. Oxytocin