Tag: biology

Questions Related to biology

Hypothalamus does not control

  1. Hunger and satiety

  2. Thermoregulation

  3. Libido

  4. Creative thinking and consciousness

  5. Osmoregulation


Correct Option: D

Which part of the man acts as thermostat?

  1. Hypothalamus

  2. Skin

  3. Medulla oblongata

  4. All the above


Correct Option: A

Centre of thirst and hunger is located in

  1. Cerebrum

  2. Cerebellum

  3. Hypothalamus

  4. Medulla oblongata


Correct Option: C

Neurosecretory cells occur in

  1. Hypothalamus

  2. Cerebral cortex

  3. Medulla oblongata

  4. Corpus callosum


Correct Option: A

In mammals the brain centre regulating body temperature is found inĀ 

  1. Cerebellum

  2. Cerebral lobe

  3. Hypothalamus

  4. Medulla oblongata


Correct Option: C

Which of the following statements about 'neuro-hypophysis' is correct?

  1. It stores the hormones produced by adenohypophysis

  2. It is poorly developed and functionless in humans

  3. It stores and releases hormones secreted by hypothalamus

  4. It secretes its own hormones


Correct Option: C
Explanation:

Neurohypophysis or the posterior lobe of pituitary gland consists of axonal endings of neurosecretory neurons located in hypothalamus. Oxytocin and vasopressin are the hormones secreted by hypothalamus but stored and released by neurohypophysis.

It is bridge between nervous system and endocrine system

  1. Thalamus

  2. Hypothalamus

  3. Limbic system

  4. Parietal lobe


Correct Option: B

A man is suffering from abnormally low body temperature, loss of appetite and extreme thirst. His brain scan is liable to show tumour in

  1. Pons

  2. Cerebellum

  3. Medulla oblongata

  4. Hypothalamus


Correct Option: D

Hypothalamus is not involved in

  1. Osmoregulation and thirst

  2. Temperature control

  3. Accuracy of muscular movement

  4. Sleep wake cycle


Correct Option: C

Pituicytes are under the control of ____________.

  1. Adenohypophysis

  2. Hypothalamus

  3. Neurohypophysis

  4. Both (a) and (c)


Correct Option: B
Explanation:

Pituicytes are the cells found in the posterior lobe of pituitary gland. The hormones, oxytocin and vasopressin released by pituicytes are actually produced by hypothalamus.