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Test: Human Neural System (NCERT) - NEET MCQ


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20 Questions MCQ Test Biology Class 11 - Test: Human Neural System (NCERT)

Test: Human Neural System (NCERT) for NEET 2024 is part of Biology Class 11 preparation. The Test: Human Neural System (NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: Human Neural System (NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Human Neural System (NCERT) below.
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Test: Human Neural System (NCERT) - Question 1

Which one of the following transmits impulses to central neural system?

Detailed Solution for Test: Human Neural System (NCERT) - Question 1

Auditory nerve is a sensory nerve that transmits impulses from internal ear to central neural system.

Test: Human Neural System (NCERT) - Question 2

How many pairs of cranial nerves are mixed nerves?

Detailed Solution for Test: Human Neural System (NCERT) - Question 2

4 pairs of cranial nerves are mixed nerves. These are trigeminal, facial, glossopharyngeal and vagus nerves.

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Test: Human Neural System (NCERT) - Question 3

The junction between the axon of one neuron and the dendrite of the next is called

Detailed Solution for Test: Human Neural System (NCERT) - Question 3

Synapse is a junction found between the branches at the end of the axon of one neuron and the dendries or cell body of aother neuron. Through this junction nerve impulse transmits from one neuron to other.

Test: Human Neural System (NCERT) - Question 4

Sympathetic neural system induces

Detailed Solution for Test: Human Neural System (NCERT) - Question 4

Sympathetic neural system accelerates heart beat and inhibits secretion of digestive juices and saliva.

Test: Human Neural System (NCERT) - Question 5

Which of the following cranial nerves has the highest number of branches?

Detailed Solution for Test: Human Neural System (NCERT) - Question 5

Vagus nerve is the mixed cranial nerve with maximum branches.

Test: Human Neural System (NCERT) - Question 6

One of the examples of the action of the autonomous neural system is

Detailed Solution for Test: Human Neural System (NCERT) - Question 6

Autonomous neural system controls the given activities.This system controls and coordinates the involuntary activities of various organs. Involuntary activities are not under the will power of the animal.

Test: Human Neural System (NCERT) - Question 7

Excessive stimulation of vagus nerve in humans may lead to 

Detailed Solution for Test: Human Neural System (NCERT) - Question 7

Excessive stimulation of vagus nerve will lead to increased peristalsis which in turn will lead to more secretion of HCl from the stomach. This will cause erosion through protective barrier of mucus and muscular is mucosa into the submucosa leading to peptic ulcer.

Test: Human Neural System (NCERT) - Question 8

Which of the following options correctly identifies the effect of sympathetic and parasympathetic neural system on given features or organs?

Detailed Solution for Test: Human Neural System (NCERT) - Question 8

Test: Human Neural System (NCERT) - Question 9

Which of the following nerves is purely a motor nerve?

Detailed Solution for Test: Human Neural System (NCERT) - Question 9

Abducens nerve is a motor nerve that controls the movements of the eye ball.

Test: Human Neural System (NCERT) - Question 10

During stress condition which of the following nerves start working?

Detailed Solution for Test: Human Neural System (NCERT) - Question 10

During stress condition, stimulation of the sympathetic nerves to adrenal medulla causes large quantities of adrenaline to be released into the blood circulation and then this hormone is carried to the specific tissues of the body where it produces its effect e.g., increase in heart beat.

Test: Human Neural System (NCERT) - Question 11

Skeletal muscels are controlled by

Detailed Solution for Test: Human Neural System (NCERT) - Question 11

Somatic nerves innervate the skeletal muscles. Therefore, these nerves control the movements of the body by acting on the skeleta muscles.

Test: Human Neural System (NCERT) - Question 12

Which of the following statement is incorrect?

Detailed Solution for Test: Human Neural System (NCERT) - Question 12

Sympathetic neural system is also called the thoracolumbar division of autonomic neural system because nerves exit the spinal cord from first thoracic (T1) to second lumbar (L2) levels. Similarly, parasympathetic division is known as craniosacral division of autonomic neural system.

Test: Human Neural System (NCERT) - Question 13

In a human being, the number of cranial nerves is

Detailed Solution for Test: Human Neural System (NCERT) - Question 13

In a human being, the number of cranial nerves is 12 pairs. These are olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, auditory, glossopharyngeal, vagus, spinal accessory and hypglossal nerves.

Test: Human Neural System (NCERT) - Question 14

Afferent nerve fibre carries impulses from

Detailed Solution for Test: Human Neural System (NCERT) - Question 14

The sensory nerves carrying impulses from the receptors to CNS are called afferent nerve fibres.

Test: Human Neural System (NCERT) - Question 15

Hypoglossal nerve controls the movements of 

Detailed Solution for Test: Human Neural System (NCERT) - Question 15

Hypoglossa nerve is a motor nerve that controls the movements of the tongue.

Test: Human Neural System (NCERT) - Question 16

Myelin sheath is formed by

Detailed Solution for Test: Human Neural System (NCERT) - Question 16

Each segment of myelin sheath is formed by one schwann cell. Myelin sheath is present in the melinated nerve fibres. It is made up of a substance of lipids, proteins and water called myelin and serves as an insulating layer, preventing loss of energy of the nerve impulse during its passage along the fibre.

Test: Human Neural System (NCERT) - Question 17

Which of the following is not related to the autonomic neyral system?

Detailed Solution for Test: Human Neural System (NCERT) - Question 17

Autonomic neural system is responsible for the control of involuntary functions of the body e.g., peristalsis digestion, excretion, sweating, beating of heart, etc. It is not concerned with memory and learning.

Test: Human Neural System (NCERT) - Question 18

Injury to vagus nerve in humans is not likely to affect

Detailed Solution for Test: Human Neural System (NCERT) - Question 18

Vagus nerve innervates pharynx, larynx, oesophagus, stomach, lungs, heart and intestines. Thus, injury to vagus nerve will not affect tongue movements as it does not innervate tongue.

Test: Human Neural System (NCERT) - Question 19

In a human being, the number of spinal nerves is

Detailed Solution for Test: Human Neural System (NCERT) - Question 19

There are 31 pairs of spinal nerves. These are named and numbered according to the vertebrae with which they are associated. They include 8 pairs of cervical nerves, 12 pairs of thoracic nerves, 5 pairs of lumbar nerves, 5 pairs of sacral nerves and 1 pair of coccygeal nerves.

Test: Human Neural System (NCERT) - Question 20

In a man, abducens nenre is injured. Which one of the following functions will be affected?

Detailed Solution for Test: Human Neural System (NCERT) - Question 20

Abducens nerve is a motor nerve that controls the movement of the eyeball. Thus, if abducens nerve is injured, movement of the eyeball will be affected.

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