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Nervous System - 1 Class 6 Worksheet Science

Q1: Match the following

Nervous System - 1 Class 6 Worksheet Science

Ans: 
(i) Neuron - (d) Basic functional unit of the nervous system
(ii) Central nervous system - (e) Composed of the brain and spinal cord
(iii) Peripheral nervous system - (a) Connects the brain and the rest of the body
(iv) Synapse - (b) Relays information between neurons
(v) Autonomic nervous system - (c) Controls involuntary actions 

Q2: Multiple Choice Questions (MCQs)


(i) The nervous system is divided into how many parts?
(a) 1
(b) 2
(c) 3
(d) 4

Ans: (b)
The nervous system is divided into two parts: the central nervous system (CNS) and the peripheral nervous system (PNS).

(ii) Which part of the nervous system controls voluntary actions?
(a) Autonomic nervous system
(b) Central nervous system
(c) Peripheral nervous system
(d) Somatic nervous system

Ans: (d)
The somatic nervous system is a part of the peripheral nervous system and controls voluntary actions.

(iii) Which part of the brain is responsible for thinking and learning?
(a) Cerebrum
(b) Cerebellum
(c) Brainstem
(d) Hypothalamus

Ans: (a)
The cerebrum is the largest part of the brain and is responsible for thinking, learning, memory, and consciousness.

(iv) What is the main function of the spinal cord?
(a) To control voluntary actions
(b) To control involuntary actions
(c) To connect the brain to the rest of the body
(d) To protect the brain

Ans: (c)
The main function of the spinal cord is to connect the brain to the rest of the body.

(v) Which type of neuron carries messages from the brain to the muscles?
(a) Sensory neuron
(b) Interneuron
(c) Motor neuron
(d) None of the above

Ans: (c)
Motor neurons carry messages from the brain to the muscles, controlling movement.

Q3: Choose the odd one out

(a) Nervous System - 1 Class 6 Worksheet Science

(b) 

Nervous System - 1 Class 6 Worksheet Science

(c) Nervous System - 1 Class 6 Worksheet Science

Ans: 

(a) Nervous System - 1 Class 6 Worksheet Science

Shoulders: The ball and socket joint is present in the shoulders, in others, hinge joint is found.

(b) Nervous System - 1 Class 6 Worksheet Science

Tongue: It is a sense organ, while others are limbs.

(c) Nervous System - 1 Class 6 Worksheet Science

Liver: It is the part of the digestive system, others are parts of the brain. 

Q4: Fill in the blanks


(i) The ________ system is responsible for controlling and coordinating the functions of the body.
Ans: The nervous system is responsible for controlling and coordinating the functions of the body.

(ii) The brain and the spinal cord make up the ________ nervous system.
Ans: The brain and the spinal cord make up the central nervous system.

(iii) Neurons are the basic functional units of the ________ system.
Ans: Neurons are the basic functional units of the nervous system.

(iv) The nervous system can be divided into the central nervous system and the ________ nervous system.
Ans: The nervous system can be divided into the central nervous system and the peripheral nervous system.

(v) The ________ is the part of the brain responsible for higher cognitive functions.
Ans: The cerebrum is the part of the brain responsible for higher cognitive functions.

Q5: True or False


(i) The nervous system is responsible for the body's muscular system.
Ans: True
The nervous system is responsible for controlling the body's muscular system by sending signals to the muscles, which then contract and cause movement.

(ii) The cerebrum is the largest part of the brain.
Ans: True
The cerebrum is the largest part of the brain, making up about 85% of its mass. It is responsible for higher cognitive functions such as thinking, decision-making, and problem-solving.

(iii) Neurons are able to regenerate if damaged.
Ans: False
Neurons, unlike other cells in the body, have a limited ability to regenerate if damaged. Some neurons can recover from minor injuries, but the majority of them cannot.
Nervous System - 1 Class 6 Worksheet Science

(iv) The peripheral nervous system includes the brain and spinal cord.
Ans: False
The peripheral nervous system includes nerves that connect the brain and spinal cord (central nervous system) to the rest of the body.

(v) The autonomic nervous system controls voluntary actions.
Ans: False
The autonomic nervous system controls involuntary actions such as heart rate, digestion, and respiratory rate. Voluntary actions are controlled by the somatic nervous system.

Q6: Write the functions of these parts of your body.

(i) Cerebrum - Thinking
Nervous System - 1 Class 6 Worksheet Science

(ii) Pupil - Light enters the eye

Nervous System - 1 Class 6 Worksheet Science

(iii) Eardrum - Vibrates when sound falls on it

Nervous System - 1 Class 6 Worksheet Science

(iv) Medulla - Involuntary actions

(v) Cerebellum - Balance and movements

(vi) Spinal cord - Reflex action

Nervous System - 1 Class 6 Worksheet Science

Q7: Short Answer Questions.


(i) What is the main function of the nervous system?
Ans: The main function of the nervous system is to receive information from the environment, process and interpret that information, and then respond accordingly to maintain the body's homeostasis (balance) and coordinate bodily functions.

(ii) What are the two main parts of the central nervous system?
Ans: The two main parts of the central nervous system are the brain and the spinal cord.

(iii) Describe the function of a neuron.
Ans: A neuron is a specialized cell that transmits nerve impulses. It has three main parts: the cell body, dendrites, and axon. The dendrites receive information from other neurons, the cell body processes the information, and the axon sends the information to other neurons, muscles, or glands.

(iv) How are the spinal cord and brain different in their functions?
Ans: The brain is responsible for processing and interpreting information received from the environment, controlling our thoughts, emotions, and actions, whereas the spinal cord mainly serves as a conduit for transmitting information between the brain and the rest of the body.

(v) What is the difference between voluntary and involuntary actions?
Ans: Voluntary actions are those that we can consciously control, such as walking and talking. Involuntary actions are those that happen automatically without conscious control, such as breathing, heartbeat, and digestion.
Nervous System - 1 Class 6 Worksheet Science

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FAQs on Nervous System - 1 Class 6 Worksheet Science

1. What is the function of the nervous system?
Ans. The nervous system is responsible for transmitting signals and coordinating the actions of different parts of the body. It controls voluntary actions, such as moving muscles, as well as involuntary actions, such as regulating heart rate and breathing.
2. How does the nervous system work?
Ans. The nervous system works by transmitting electrical signals, known as nerve impulses, through a network of specialized cells called neurons. These signals travel along the neurons and allow communication between different parts of the body, including the brain, spinal cord, and peripheral nerves.
3. What are the main components of the nervous system?
Ans. The nervous system is made up of two main components: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of the brain and spinal cord, while the PNS includes the nerves that branch out from the CNS to the rest of the body.
4. What are the different types of neurons in the nervous system?
Ans. There are three main types of neurons in the nervous system: sensory neurons, motor neurons, and interneurons. Sensory neurons transmit signals from sensory organs to the CNS, motor neurons transmit signals from the CNS to muscles and glands, and interneurons connect sensory and motor neurons within the CNS.
5. How can the nervous system be affected by diseases or injuries?
Ans. The nervous system can be affected by various diseases and injuries. Examples include neurodegenerative diseases like Alzheimer's and Parkinson's, autoimmune disorders like multiple sclerosis, and traumatic injuries such as spinal cord damage. These conditions can result in symptoms such as impaired movement, memory loss, and sensory deficits.
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