Tag: spinal cord

Questions Related to spinal cord

Which is correct about spinal cord

biology nervous system of man structure and function of spinal cord the spinal cord spinal cord

  1. Outer grey matter, inner white matter

  2. Outer white matter, inner grey matter

  3. Outer grey matter, inner colourless matter

  4. Grey matter only

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Correct Option: B

The path of passage of stimulus when you accidentally touch a hotplate is?

biology nervous system of man structure and function of spinal cord the spinal cord spinal cord

  1. receptor $\rightarrow$ brain $\rightarrow$ muscles

  2. muscles $\rightarrow$ spinal cord $\rightarrow$ receptor

  3. muscles $\rightarrow$ brain $\rightarrow$ receptor

  4. receptor $\rightarrow$ spinal cord $\rightarrow$ muscles

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Correct Option: D

Destruction of anterior horn cells of spinal cord would result in loss of

biology nervous system of man structure and function of spinal cord the spinal cord spinal cord

  1. Sensory impulses

  2. Voluntary motor impulses

  3. Commissural impulses

  4. Integrating impulses

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Correct Option: B

Amount of CSF in cranial cavities is

biology nervous system of man structure and function of spinal cord the spinal cord spinal cord

  1. 500 ml

  2. 140 ml

  3. 1 litre

  4. 1.5 ml

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Correct Option: B

Choose the correct answer from the alternatives given.
Which of the following structures or regions is incorrectly paired with its function?

biology nervous system of man structure and function of spinal cord the spinal cord spinal cord

  1. Brocas regions-screening of information between the spinal cord and the brain regulates arousal and sleep

  2. Medulla oblongata - homeostatic control centres

  3. Cerebellum - unconscious co-ordination of movement and balance

  4. Hypothalamus - production of hormones and regulation of temperature, hunger, and thirst

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Correct Option: A
Explanation:

Broca's area is a region in the frontal lobe of the dominant hemisphere, usually the left, of the brain with functions linked to speech production.

So, the correct option is 'Broca's region - Screening of information between the spinal cord and the brain regulates arousal and sleep'.

How many laminae are present in grey matter of spinal cord

biology nervous system of man structure and function of spinal cord the spinal cord spinal cord

  1. Four

  2. Six

  3. Eight

  4. Ten

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Correct Option: D

Which of the following has H-shaped grey matter?

biology nervous system of man structure and function of spinal cord the spinal cord spinal cord

  1. Cerebrum

  2. Medulla oblongata

  3. Cerebellum

  4. Spinal cord

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Correct Option: D

Lateral funiculi possess ganglia

biology nervous system of man structure and function of spinal cord the spinal cord spinal cord

  1. Sensory

  2. Motor

  3. Both A and B

  4. None of the above

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Correct Option: D
Explanation:

Lateral funiculi are part of white matter of spinal cord having myelinated nerve fibres. Cell bodies/ganglia occur in grey matter that lies inside and in horns of spinal cord.

White matter of spinal cord contains

zoology neural control and coordination structure and function of spinal cord the spinal cord spinal cord

  1. Nerve axons

  2. Cell bodies

  3. Clusters of neurons and cell bodies

  4. Motor neurons

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Correct Option: A
Explanation:

White matter is a component of the central nervous system, in the brain and spinal cord, and consists mostly of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another and between the cerebrum and lower brain centers.

All are true about spinal cord except:

zoology neural control and coordination structure and function of spinal cord the spinal cord spinal cord

  1. Epidural space around meninges is present.

  2. Pseudounipolar neurons found in ventral root.

  3. Sensory fibre in dorsal root and motor fibre in ventral root.

  4. Lateral horn cell realted cell to ANS formation.

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Correct Option: A
Explanation:
The soma (cell body) of each Pseudounipolar neuron is located within a dorsal root ganglion.
Pseudounipolar neurons are also found in the sensory ganglia of cranial nerves V, VII, IX and X, all mixed-cranial nerves.
 So, the correct option is  'Pseudounipolar neurons found in the ventral root'.