Nervous System Class 8 ICSE Biology MCQ Questions
Looking for Nervous System Class 8 ICSE Biology Chapter 7 MCQ Questions? If yes, You are the right page. Here we have provided ICSE class 8 Biology Chapter 7 multiple choice questions and answers. All MCQ are important.
1.) ____coordination consists of the brain, spinal cord, nerves and the sense organs.
a) Chemical coordination b) Nervous coordination
2.) ____coordination is brought about by the hormones.
a) Chemical b) Nervous
3.) The nervous system is made up of special cells called ____.
a) Neurons b) Nephrons
4.) The main cell body is called ____.
a) Axon b) Cyton
5.) ____ are cytoplasmic extensions of the cell body.
a) Dendrites b) Nucleus
6.) From the cell body arises one long process called ____.
a) Axon b) Cyton
7.) ____neurons carry impulse from the sense organs to the spinal cord or brain.
a) Sensory neurons b) Motor neurons
8.) ____neurons carry messages from the brain or spinal cord to the gland or muscles.
a) Sensory neurons b) Motor neurons
9.) ____neurons transmit impulses from one neuron to another.
a) Association neurons b) Motor neurons
10.) ____ is a small junction used for communication between two neurons.
a) Sheath b) Synapse
11.) The end of axon terminates in a number of branches called ____.
a) Terminal branches b) Internodes
12.) A ____ is formed of a bundle of axons enclosed in a tubular medullary sheath.
a) Neuron b) Nerve
13.) ____nerve contains only sensory neurons.
a) Motor nerve b) Sensory nerve
14.) ____nerve contains only motor neurons.
a) Motor nerve b) Sensory nerve
15.) ____nerve carries both sensory and motor neurons.
a) Motor nerve b) Mixed nerve
16.) ____ is an example of sensory nerve.
a) Nerves of the muscles of the eyeball b) Optic nerve of the eye
17.) ____ are the example of motor nerve.
a) Nerves of the muscles of the eyeball b) Optic nerve of the eye
18.) ____ is the example of mixed nerve.
a) Nerves of the muscles of the eyeball b) The nerve that goes to the tongue
19.) The brain lies protected within the ____.
a) Vertebral column b) Skull
20.) The spinal cord lies well-protected within the ____.
a) Vertebral column b) Skull
21.) ____nervous system acts largely unconsciously and controls the involuntary bodily activities of our internal organs like the heartbeat, blood pressure etc.
a) Somatic b) Automatic
22.) ____nervous system connects the central nervous system to the organs, muscles and skin.
a) Somatic b) Automatic
23.) The human cerebrum contains about ____ billion neurons.
a) 9 b) 10
24.) ____ is the largest portion of the brain.
a) Cerebellum b) Cerebrum c) Medulla oblongata
25.) ____ gets affected by alcohol.
a) Cerebellum b) Cerebrum c) Medulla oblongata
26.) The main function of ____ is to balance the body and coordinate muscular activities.
a) Cerebellum b) Cerebrum c) Medulla oblongata
27.) ____ is the lowest part of the brain.
a) Cerebellum b) Cerebrum c) Medulla oblongata
28.) The function of ____ is to control the activities of the internal organs.
a) Cerebellum b) Cerebrum c) Medulla oblongata
29.) Injury to the ____ may result in immediate death of a person.
a) Cerebellum b) Cerebrum c) Medulla oblongata
30.) ____ is the seat of intelligence, consciousness and will power.
a) Cerebellum b) Cerebrum c) Medulla oblongata
The outer portion of cerebrum contains cell bodies of neurons and is called ____.
a) White matter b) Grey matter
32.) The inner portion of cerebrum mainly consists of axons and is called ____.
a) White matter b) Grey matter
33.) ____ conducts messages from skin and muscles to the brain.
a) Cerebellum b) Spinal cord
34.) ____ conducts commands from brain to muscles of trunk and limbs.
a) Spinal cord b) Cerebrum
35.) ____ controls reflexes below the neck.
a) Medulla oblongata b) Spinal cord
Grey matter made up of ____.
a) Cell bodies b) Axons
37.) White matter made up of ____.
a) Cell bodies b) Axons
38.) There are ____ pairs of cranial nerves.
a) 12 b) 31
39.) There are ____ pairs of spinal nerves arise from the spinal cord.
a) 12 b) 31
40.) ____nervous system dilates the pupil of the eyes, constricts the vessels of the skin and accelerates the heart rate.
a) Parasympathetic b) Sympathetic
41.) ____nervous system is responsible for the Constriction of the pupil of the eyes, dilation of blood vessels and slowing down of the heart rate.
a) Parasympathetic b) Sympathetic
42.) ____reflex is one in which no previous experience or learning is required.
a) Natural reflex b) Conditional reflex
43.) ____reflex is one which develops during the lifetime due to experience or learning.
a) Natural reflex b) Conditional reflex
44.) Playing a musical instrument is an example of ____ reflex.
a) Natural reflex b) Conditional reflex
45.) Any change in the environment that usually results in change in the activity of the body is called ____.
a) Stimulus b) Impulse
46.) A wave of electrical disturbance that runs through the nerves is called ____.
a) Stimulus b) Impulse
47.) The sense organs which receives the stimulus are called ____.
a) Receptors b) Effectors
48.) Any muscle or gland where the response occurs is called ____.
a) Receptor b) Effector
49.) You pick an apple and eat it is an example of ____ action.
a) Voluntary action b) Involuntary action
50.) Instantaneous withdrawal of hand when it accidentally touches a hot iron is an example of ____ action.
a) Voluntary action b) Involuntary action
Answer:
1.b), 2.a), 3.a), 4.b), 5.a), 6.a), 7.a), 8.b), 9.a), 10.b), 11.a), 12.b), 13.b), 14.a), 15.b), 16.b), 17.a), 18.b), 19.b), 20.a), 21.b), 22.a), 23.a), 24.b), 25.a), 26.a), 27.c), 28.c), 29.c), 30.b), 31.b), 32.a), 33.b), 34.a), 35.b), 36.a), 37.b), 38.a), 39.b), 40.b), 41.a), 42.a), 43.b), 44.b), 45.a), 46.b), 47.a), 48.b), 49.a), 50.b)