GnRH, a hypothalamic hormone, needed in reproduction, acts on:

1.  Anterior pituitary gland and stimulates secretion of LH and FSH.
2. Posterior pituitary gland and stimulates secretion of oxytocin and FSH.
3. Posterior pituitary gland and stimulates secretion of LH and relaxin.
4. Anterior pituitary gland and stimulates secretion of LH and oxytocin.

Subtopic:  Adenohypophysis & Hypothalamus |
 88%
From NCERT
NEET - 2017
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Hypersecretion of Growth Hormone in adults does not cause further increase in height, because?

1. Epiphyseal plates close after adolescence.
2. Bones lose their sensitivity to Growth Hormone in adults.
3. Muscle fibres do not grow in size after birth.
4. Growth Hormones become inactive in adults.
Subtopic:  Adenohypophysis & Hypothalamus |
 75%
NEET - 2017
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Given ahead is an incomplete table about certain hormones, their source glands and one major effect of each on the body in humans. Identify the correct option for the three blanks A, B and C.

 Gland  Secretion Effect on Body
  A    Oestrogen Maintenance of secondary sexual characters
Alpha cells of islets of Langerhans  B Raises blood sugar level
Anterior pituitary   C Oversecretion leads to gigantism
 
Options: A B C
1. Placenta   Insulin Vasopressin
2. Ovary      Insulin Calcium
3. Placenta Glucagon  Calcitonin
4. Ovary    Glucagon Growth hormone
Subtopic:  Adenohypophysis & Hypothalamus | Human Growth Hormone | Pancreas: I | Pancreas |
 91%
From NCERT
AIPMT - 2011
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following pair correctly matches a hormone with a disease resulting from its deficiency:

1. Insulin – Diabetes insipidus

2. Thyroxine – Tetany

3. Parathyroid hormone – Diabetes mellitus

4. Luteinizing hormone – Failure of ovulation 

Subtopic:  Adenohypophysis & Hypothalamus |
 73%
From NCERT
AIPMT - 2004
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

MSH is secreted by:
1. Anteria lobe of the pituitary
2. Middle lobe of the pituitary
3. Posterior lobe of the pituitary
4. Endostyle

Subtopic:  Adenohypophysis & Hypothalamus |
 64%
From NCERT
AIPMT - 2000
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh