Tag: biology

Questions Related to biology

Correct sequence of meninges of brain from outside inside is

biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

  1. Duramater-Piamater- Arachnoid

  2. Piamater-Duramater- Arachnoid

  3. Arachnoid-Duramater- Piamater

  4. Duramater-Arachnoid- Piamater

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Correct Option: D

Lateral ventricles of brain are connected to the third ventricle by

biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

  1. Spinal canal

  2. Corpus callosum

  3. Cerebellum

  4. None of the above

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Correct Option: D

Pons connects

biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

  1. Brain with spinal cord

  2. Cerebrum with cerebellum

  3. Two-lobes of cerebellum

  4. Two cerebral hemispheres

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Correct Option: A

The lining layer of brain ventricles is called

biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

  1. Ependyma

  2. Endothelium

  3. Epithelium

  4. Mesothelium

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Correct Option: A

In humans the brain reaches its adult size at about

biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

  1. 1 Year

  2. 2 Year

  3. 4 Year

  4. 6 Year

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Correct Option: D

Which of the following body part has more number of bone that others?

biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

  1. Skull

  2. Chest

  3. Forelimb

  4. Pelvis

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Correct Option: A
Explanation:

The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together. 

So, the correct option is ‘Skull’.

The term "grey matter" refers to

biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

  1. neurons that are unmyelinated

  2. axons that are myelinated

  3. dendrites that are myelinated

  4. neurons that are myelinated

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Correct Option: A
Explanation:
The grey matter is mainly composed of neuronal cell bodies and unmyelinated axons. In the grey matter, these axons are mainly unmyelinated, meaning they are not covered by a whitish-coloured, fatty protein called myelin. The grey matter serves to process information in the brain.

So, the correct answer is 'neurons that are unmyelinated'.

Different portions of the brain are responsible for specific functions.

biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

  1. True

  2. False

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Correct Option: A
Explanation:

Different regions of the brain are responsible for specific functions. For example, the medulla oblongata is responsible for regulating heart beat and many other involuntary actions. The Broca region is responsible for speech and language etc. So, the correct answer is option A.

The central nervous system consists of the brain and spinal cord.
biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

  1. True

  2. False

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Correct Option: A
Explanation:
The central nervous system is responsible for integrating sensory information and responding accordingly. It consists of two main components:
  1. The spinal cord serves as a conduit for signals between the brain and the rest of the body. It also controls simple musculoskeletal reflexes without input from the brain.
  2. The brain is responsible for integrating sensory information and coordinating body function, both consciously and unconsciously. 

Brains can work 24 hours a day with no rest.

biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

  1. True

  2. False

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Correct Option: B
Explanation:
Brains are a part of human beings, which controls all the functions of the body. Our brain needs rest every day, without which body functions will be hampered. So, the correct answer is option B.