MCQs Part 3 of 3: Nervous System.

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MCQs Part 3 of 3: Nervous System.

Quiz

Time for this test is 45 minutes.

 

1. Spinal cord has “------” no. of pairs of Spinal Nerves.
   1.   21
   2.   31
   3.   41
   4.   51
2. Length of human spinal cord ranges from ----
   1.   42-45 cm.
   2.   52-65 cm
   3.   35-42 cm
   4.   12-22 cm
3. At the terminal end of the spinal cord the roots of the spinal nerves go inferiorly in the vertebral cavity, the structure looks like a “Horse Tail” and is called,
   1.   Cauda equina.
   2.   Corpus callosum.
   3.   Vermis.
   4.   Filum terminale.
4. The spinal nerve which extends inferiorly up to the coccyx is called --------.
   1.   Cauda equina.
   2.   Corpus callosum.
   3.   Vermis.
   4.   Filum terminale.
5. The cross section of the spinal cord shows ------shaped gray matter present at the centre surrounded by white matter.
   1.   A
   2.   B
   3.   G
   4.   H
6. A small space present in the centre of the gray matter of the spinal cord is called the ------.
   1.   Dorsal Horn.
   2.   Ventral Horn.
   3.   Central canal.
   4.   Lateral Canal.
7. Posterior horn of the spinal cord contains a v- shaped area called “--------”.
   1.   Substantia nigra.
   2.   Substantia gelatinosa.
   3.   Central canal.
   4.   Filum terminale.
8. Sensory nerves of the spinal cord consist of axons that conduct impulses towards the -----.
   1.   Brain.
   2.   Effector Organs.
9. Motor nerves consist of axons that carry impulses from the brain to the -------.
   1.   Brain.
   2.   Effector Organs.
10. A fast automatic unplanned sequence of actions occurring in response to a stimulus is called as ----.
    1.   Reflex.
    2.   Action.
    3.   Potential.
    4.   Impulse.
11. As a result of action, if there is contraction of smooth muscles or glands get activated the reflex is called “--------”.
    1.   Somatic Reflex.
    2.   Visceral Reflex.
12. As a result of action, if there is contraction of skeletal muscles the reflex is called “-------”.
    1.   Somatic Reflex.
    2.   Visceral Reflex.
13. The path taken by impulses during the process of reflex is called “--------”.
    1.   Reflex Arc.
    2.   Reflex Dome.
    3.   Reflex Road.
    4.   Reflex Circle.
14. Which of the following is not a part of a Reflex Arc.
    1.   Sensory Receptor.
    2.   Air.
    3.   Effector Organ.
    4.   Motor Neuron
    5.   Integrating Center.
    6.   Sensory Nerve.
15. In the reflex arc the --------- carries this impulse to the spinal cord.
    
    1.   Sensory Receptor.
    2.   Sensory Nerve.
    3.   Integrating Center.
    4.   Motor Neuron
    5.   Effector Organ.
16. Integrating center in a Reflex Arc consists of a synapse between a sensory neuron and a---------, connected by a connector neuron.
    1.   Sensory Receptor.
    2.   Sensory Nerve.
    3.   Integrating Center.
    4.   Motor Neuron
    5.   Effector Organ.
17. In reflex arc -------- carries nerve impulses from the integrating center to the effector organ.
    1.   Sensory Receptor.
    2.   Sensory Nerve.
    3.   Integrating Center.
    4.   Motor Neuron
    5.   Effector Organ.
18. In Reflex Arc the organ which shows the action in response to the stimulus is called the -------.
    1.   Sensory Receptor.
    2.   Sensory Nerve.
    3.   Integrating Center.
    4.   Motor Neuron
    5.   Effector Organ.
19. Brain has special coverings called “-------”.
    1.   Matters.
    2.   Membranes.
    3.   Meninges.
    4.   Barriers.
20. Meninges covers both the Brain and the spinal cord.
    1.   True
    2.   False.
21. The outermost cover of brain meninges is,
    1.   Dura Mater
    2.   Arachnoid Mater,
    3.   Pia Mater.
22. The middle cover of brain meninges is,
    1.   Dura Mater
    2.   Arachnoid Mater,
    3.   Pia Mater.
23. The innermost cover of brain meninges is,
    1.   Dura Mater
    2.   Arachnoid Mater,
    3.   Pia Mater.
24. The space between Dura and Arachnoid Mater is,
    1.   Subdural Space.
    2.   Subarachnoid space.
25. The space between Arachnoid mater and Pia Mater is,
    1.   Subdural Space.
    2.   Subarachnoid space.
26. Cerebrospinal fluid is present in ---------.
    1.   Subdural Space.
    2.   Subarachnoid space.
27. Cerebrospinal fluid is a transparent, colourless fluid, Secreted by: “------” in brain ventricles.
    1.   Choroid Plexus.
    2.   Alpha cells.
    3.   Beta Cells.
    4.   Delta Cells.
28. Approximate daily production of CSF is ----- per day.
    1.   500ml
    2.   750 ml.
    3.   One Lit.
    4.   1.5 Lit.
29. Composition and pH of CSF are similar like-----.
    1.   Blood plasma.
    2.   Gastric Juice.
    3.   Intestinal Juice.
    4.   Synovial fluid.
30. What is the function of the CSF?
    1.   Medium for exchange of nutrients and waste materials.
    2.   Chemical protection.
    3.   Protection from microbes.
    4.   Maintains uniform pressure.
    5.   All of these.