NERVOUS SYSTEM - Q&A

Question 1What is the interaction of a living being's activities according to internal or external needs called?

Question 2Which system is responsible for nervous coordination in the body?

Question 3Chemical coordination in the body is brought about by which messengers?

Question 4What are the structural and functional units of the nervous system?

Question 5Which part of the neuron is a long process that transmits messages away from the cell body?

Question 6What is the main cell body of a neuron called?

Question 7The cytoplasmic extensions of the cell body that receive messages are known as:

Question 8What is the point of contact between the terminal branches of one neuron and the dendrites of another called?

Question 9Which substance covers the axon and acts as insulation to prevent the mixing of impulses?

Question 10Which type of nerve carries impulses from sense organs to the brain or spinal cord?

Question 11The optic nerve is an example of which type of nerve?

Question 12Which type of nerve carries impulses from the brain to muscles or glands?

Question 13A nerve that contains both sensory and motor fibres is known as a:

Question 14Which of these is a mixed nerve?

Question 15What term defines any change in the environment that results in a change in body activity?

Question 16The activity of the body that occurs due to a stimulus is called a:

Question 17What is a 'wave of electrical disturbance' that runs through the nerves called?

Question 18Which part of the body receives a stimulus?

Question 19In the example of touching a hot object, what acts as the stimulus?

Question 20What are the two components of the Central Nervous System (CNS)?

Question 21Where is the brain protected?

Question 22Where is the spinal cord located?

Question 23Which system consists of nerves passing to and from the central nervous system?

Question 24Which part of the nervous system controls vital involuntary functions like heart beat and peristalsis?

Question 25What is the largest portion of the human brain?

Question 26The outer portion of the cerebrum, containing cell bodies, is called:

Question 27The inner portion of the cerebrum, consisting mainly of axons, is called:

Question 28Approximately how many neurons are found in the human cerebrum?

Question 29Which part of the brain is the seat of intelligence, consciousness, and will power?

Question 30Which brain part is located under the cerebrum and maintains body balance?

Question 31Which substance specifically affects the cerebellum, leading to poor muscular coordination?

Question 32The lowest part of the brain that continues into the spinal cord is the:

Question 33Which part of the brain controls involuntary activities like the beating of the heart?

Question 34Why can an injury to the medulla oblongata result in death?

Question 35In the spinal cord, how is the matter arranged compared to the brain?

Question 36What is a major function of the spinal cord regarding reflexes?

Question 37How many pairs of cranial nerves are there in the human body?

Question 38Which cranial nerve is responsible for the sense of smell?

Question 39Which cranial nerve is used for vision?

Question 40The auditory nerve is responsible for:

Question 41How many pairs of spinal nerves arise from the spinal cord?

Question 42A typical spinal nerve is categorized as a:

Question 43Which division of the Autonomic Nervous System is generally stimulatory (e.g., accelerates heart beat)?

Question 44The parasympathetic nervous system is described as having what kind of effect on the body?

Question 45Which system constricts the pupil of the eye and slows down the heart beat?

Question 46Actions performed consciously, like switching on a TV, are called:

Question 47What is another name for involuntary actions occurring unknowingly?

Question 48Which of these is a reflex action?

Question 49A quick and immediate response to a stimulus without brain involvement is a:

Question 50In a reflex arc, where is the impulse usually processed if the brain is not involved?

Statement 1The interaction of body activities as per internal or external needs is called coordination.

Statement 2Digestion, respiration, and excretion function completely independently in the human body.

Statement 3Nervous coordination is brought about by the endocrine system.

Statement 4The nervous system is made up of the brain, spinal cord, nerves, and sense organs.

Statement 5Chemical coordination is brought about through chemical messengers called hormones.

Statement 6Hormones provide extra energy and strength in emergency situations like being attacked by a bull.

Statement 7The nervous system helps us remember, think, and reason.

Statement 8Voluntary muscular activities, such as running, are controlled by the nervous system.

Statement 9The nervous system does not regulate involuntary activities like the beating of the heart.

Statement 10The structural and functional unit of the nervous system is the neuron.

Statement 11A neuron is also commonly known as a nerve cell.

Statement 12The main cell body of a neuron is called the cyton.

Statement 13Dendrites are long processes that carry messages away from the cell body.

Statement 14The axon is a long process that transmits messages.

Statement 15The cell body of a neuron contains a nucleus.

Statement 16Dendrites receive messages and transmit them through the cell body into the axon.

Statement 17The terminal branches of an axon are located at the beginning of the neuron.

Statement 18Individual neurons make physical contact with each other to transmit messages.

Statement 19A synapse is the point of contact where messages are transmitted from one neuron to another.

Statement 20A nerve is formed of a bundle of axons enclosed in a medullary sheath.

Statement 21The medullary sheath acts as insulation and prevents mixing of impulses in adjacent fibres.

Statement 22Sensory nerves carry impulses from the brain to the sense organs.

Statement 23The optic nerve of the eye is an example of a sensory nerve.

Statement 24Motor nerves carry impulses to muscles or glands from the brain or spinal cord.

Statement 25Nerves to the muscles of the eyeball are sensory nerves.

Statement 26A mixed nerve carries both sensory and motor fibres.

Statement 27The nerve going to the tongue is an example of a mixed nerve.

Statement 28A stimulus is any change in the environment that results in a change in body activity.

Statement 29The activity of the body due to a stimulus is called an impulse.

Statement 30An impulse is a wave of electrical disturbance that runs through the nerves.

Statement 31Receptors are muscles or glands where a response occurs.

Statement 32Sense organs that receive the stimulus are called receptors.

Statement 33An effector is a muscle or gland where the response occurs.

Statement 34In the hot object example, heat acts as the stimulus.

Statement 35The muscle of the hand withdrawing from heat is the receptor.

Statement 36The central nervous system consists of the brain and the spinal cord.

Statement 37The spinal cord lies protected within the skull.

Statement 38The peripheral nervous system consists of nerves passing to and from the CNS.

Statement 39The autonomic nervous system controls vital functions like heart beat and peristalsis.

Statement 40The brain is divided into the cerebrum, cerebellum, and medulla oblongata.

Statement 41The cerebrum is the smallest portion of the brain.

Statement 42The cerebrum is divided into two halves called cerebral hemispheres.

Statement 43The outer surface of the cerebrum is smooth and lacks ridges.

Statement 44Grey matter in the cerebrum contains the cell bodies of neurons.

Statement 45The human cerebrum contains about 9 billion neurons.

Statement 46White matter in the cerebrum mainly consists of axons.

Statement 47The cerebrum is the seat of intelligence, consciousness, and will power.

Statement 48The cerebellum is located above the cerebrum.

Statement 49The main function of the cerebellum is to balance the body and coordinate muscular activities.

Statement 50The cerebrum decides the action, while the cerebellum implements the action.

Question 1The interaction of activities of a living being as per the needs of the body internally or externally is called ______.

Question 2Nervous coordination is brought about by the ______ system.

Question 3The nervous system is made up of the brain, spinal cord, nerves and the ______ organs.

Question 4Chemical coordination is brought about through chemical messengers called ______.

Question 5The nervous system informs us about the outside world through ______ organs.

Question 6The nervous system regulates ______ activities such as breathing or the beating of the heart.

Question 7The structural and functional unit of the nervous system is the ______.

Question 8A neuron is made up of two main parts: a main cell body called ______ and a long process called axon.

Question 9The ______ are cytoplasmic extensions of the cell body that receive messages.

Question 10The cell body of a neuron contains a ______.

Question 11The end of the axon terminates in a number of branches called ______ branches.

Question 12The point of contact between the terminal branches of one neuron and the dendrites of another is called a ______.

Question 13A ______ is formed of a bundle of axons enclosed in a medullary sheath.

Question 14The medullary sheath over the axon acts like an ______ to prevent mixing of impulses.

Question 15______ nerves contain only sensory fibres bringing impulses from sense organs to the brain.

Question 16The ______ nerve of the eye is an example of a sensory nerve.

Question 17______ nerves carry impulses to muscles or glands from the brain or spinal cord.

Question 18A ______ nerve carries both sensory and motor fibres.

Question 19The nerve which goes to the ______ is an example of a mixed nerve.

Question 20Any change in the environment that usually results in a change in body activity is a ______.

Question 21The activity of the body due to a stimulus is called a ______.

Question 22A wave of electrical disturbance that runs through the nerves is called an ______.

Question 23The sense organs which receive the stimulus are called ______.

Question 24Any muscle or gland where the response occurs is called an ______.

Question 25The central nervous system (CNS) consists of the brain and the ______.

Question 26The brain lies protected within the ______.

Question 27The spinal cord lies within the ______ column.

Question 28The ______ nervous system consists of nerves passing to and from the central nervous system.

Question 29The ______ nervous system consists of a pair of chains of ganglia and nerves controlling vital functions.

Question 30The ______ is the largest portion of the brain.

Question 31The cerebrum is divided into two halves called the cerebral ______.

Question 32The outer surface of the cerebrum is folded with ______ and grooves.

Question 33The outer portion of the cerebrum contains cell bodies and is called ______ matter.

Question 34The human cerebrum contains about ______ billion neurons.

Question 35The inner portion of the cerebrum consists of axons and is called ______ matter.

Question 36The ______ is the seat of intelligence, consciousness, and will power.

Question 37The ______ is located under the cerebrum and coordinates muscular activities.

Question 38The main function of the cerebellum is to ______ the body.

Question 39An alcoholic person is unable to coordinate muscular movements because alcohol affects the ______.

Question 40The ______ is the lowest part of the brain and continues into the spinal cord.

Question 41The medulla oblongata controls the activities of the ______ organs.

Question 42Injury to the ______ may result in the death of a person.

Question 43In the spinal cord, the inner part is the ______ matter made up of cell bodies.

Question 44In the spinal cord, the outer part is the ______ matter made up of axons.

Question 45The spinal cord controls ______ below the neck.

Question 46There are ______ pairs of cranial nerves that arise from the brain.

Question 47______ nerves go to the nose for smelling.

Question 48______ nerves go to the ears for hearing.

Question 49______ nerves go to the tongue for taste and facial muscles.

Question 50There are ______ pairs of spinal nerves which arise from the spinal cord.

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