Neural Control and Coordination Solved MCQs.

Neural Control and Coordination MCQ Multiple Choice Questions with Answers 1. The behavior activities that occur at regular intervals in liv...

Neural Control and Coordination MCQ Multiple Choice Questions with Answers

1. The behavior activities that occur at regular intervals in living things are known as:
a. Circannual
b. Biorhythms
c. Fits
d. Cycles
Answer: b. Biorhythms

2. How many elements of the nervous system are there which help in coordination?
a. Two
b. Three
c. Four
d. Five
Answer: c. Four

3. The controlling center of the autonomic nervous system is…?
a. Hypothalamus
b. Spinal cord
c. Cerebellum
d. Medulla
Answer: a. Hypothalamus

4. A bipolar neuron or bipolar cell has how many dendrites and axons?
a. 2 dendrites 1 axon
b. 2 axons and 1 dendrite
c. 1 dendrite and 1 axon
d. 2 axons 2 dendrites
Answer: c. 1 dendrite and 1 axon

5. What happens during the conduction of nerve impulses?

a. Na+ moves into axoplasm
b. Na+ moves out of axoplasm
c. K+ moves into axoplasm
d. Ca2+ moves into axoplasm
Answer: a. Na+ moves into axoplasm

6. What is the value of the action potential of a nerve cell?
a. -60 mv
b. -80 mv
c. +70 mv
d. +20 mv
Answer: d. +20 mv

7. Which of the following ions are required during the conduction of the nerve impulse?
a. K+ and Na+
b. Ca2+, K+
c. Mg2+
d. Na+ , Ca2+
Answer: a. K+ and Na+

8. How many times does pain receptors are more than cold receptors?
a. 20 times
b. 25 times
c. 27 times
d. 30 times
Answer: c. 27 times

9. Which of the following cells plays a vital role in the nutrition of neurons?

a. Effectors
b. Neuroglia
c. Reflex arc
d. Myelin sheath
Answer: b. Neuroglia

10. How many functional types of neurons are there?

a. Three
b. Four
c. Five
d. Six
Answer: a. Three

11. What is the normal speed of nerve impulses in humans?
a. 120 m/s
b. 150 m/s
c. 100 m/s
d. 1000 m/s
Answer: c. 100 m/s

12. The menstrual cycle is controlled by which region of the brain?
a. Hippocampus
b. Hypothalamus
c. Medulla
d. Cerebellum
Answer: b. Hypothalamus

13. Transitions between sleep and wakefulness and pattern of breathing is controlled by:
a. Pons
b. Thalamus
c. Hypothalamus
d. Amygdala
Answer: a. Pons

14. How many pairs of nerves arise from the brain in humans?
a. 31 pairs
b. 12 pairs
c. 13 pairs
d. 15 pairs
Answer: b. 12 pairs

15. Which of the following is NOT a function of Neuroglial cells?
a. Protect neurons
b. Regulate interstitial fluid
c. Act as phagocytes
d. Communicate signals to target cells
Answer: d. Communicate signals to target cells

16. Which one of the following acts as an inhibitory neurotransmitter?
a. Gamma-glutamyltransferase
b. Acetylcholine
c. Gamma-linolenic acid
d. Gamma-aminobutyric acid (GABA)
Answer: d. Gamma-aminobutyric acid (GABA)

17. How many laminae are present in the grey matter of the spinal cord?
a. Three
b. Ten
c. Twelve
d. Five
Answer: b. Ten

18. The thalamus and the hypothalamus are located in which region of the brain?
a. Cerebrum
b. Brain stem
c. Diencephalon
d. Cerebellum
Answer: c. Diencephalon

19. Which one of the following is the function of the parasympathetic nervous system?
a. Constriction of Pupils
b. Acceleration of heartbeat
c. Dilates Bronchioles
d. Sweat secretion
Answer: a. Constriction of Pupils

20. The gap in the myelin sheath on the axon of certain neurons is known as…?
a. Dendrite
b. Soma
c. Nodes of Ranvier
d. Synapse
Answer: c. Nodes of Ranvier

21. What neurotransmitter is released at the neuromuscular junction?
a. Acetylcholine
b. Adrenaline
c. Testosterone
d. Estradiol
Answer: a. Acetylcholine

22. The area on the left hemisphere associated with speech production and articulation is:
a. Broca’s area
b. Occipital lobe
c. Cortex area
d. None of these
Answer: a. Broca’s area

23. Which system regulates the functions of smooth muscles and cardiac muscles?
a. Central nervous system
b. Autonomic Nervous System
c. Sympathetic nervous system
d. Parasympathetic nervous system
Answer: b. Autonomic Nervous System

24. What is another name for Neurilemma cells?
a. Photoreceptors
b. Schwann Cells
c. Ganglions
d. Odontoblasts
Answer: b. Schwann Cells

25. The space between the axon terminal of the presynaptic neuron and the membrane of the postsynaptic cell is known as:
a. Synaptic cleft
b. Synapse
c. Nodes of Ranvier
d. Ganglion
Answer: a. Synaptic cleft