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Selina solutions for Class 8 Biology chapter 7 - Nervous System

Selina Concise Biology for Class 8 (2018-19 Session)

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Selina Selina Concise Biology Class 8 (2018-19 Session)

Selina Concise Biology for Class 8 (2018-19 Session)

Chapter 7 : Nervous System

Page 0

Put a tick mark (✓) against the correct alternative in the following statement:

Medulla oblongata controls

  1. Smelling
  2. Beating of heart and respiratory movement
  3. Intelligence and will power
  4. Balancing the body

Put a tick mark (✓) against the correct alternative in the following statement:

Balance of body is controlled by:

  1. Spinal cord
  2. Cerebellum
  3. Cerebrum
  4. Medulla

Put a tick mark (✓) against the correct alternative in the following statement:

The smell of good food causes watering of your mouth. It is a

  1. Natural reflex
  2. Acquired reflex
  3. Inborn reflex
  4. Ordinary reflex

Put a tick mark (✓) against the correct alternative in the following statement:

The structural and functional unit of nervous system is a

  1. Axon
  2. Nephron
  3. Neuron
  4. Texon

 

Page 0

Name the two types of coordination which take place in our body.

Your are driving your bicycle at a fast speed. Suddenly, a small boy comes in front of your cycle and, without wasting any time in thinking, you immediately apply the brakes and accident is avoided. What name is given to such an action?

Given below is the diagram of a neuron. Name the parts numbered 1-5.

Write one word in the space provided to complete the second pair of the related words pertaining to nervous system.
Memory : cerebrum : : breathing :
Balance : cerebellum : : reasoning :

Differentiate between the following pair of terms:
Stimulus and impulse

Differentiate between the following pair of terms:

Receptor and effector.

Differentiate between the following pair of terms:

Motor nerve and sensory nerve.

Name the three major divisions of the human nervous system.

Name the three main parts of human brain.

Give the function of Olfactory nerve.

Give the function of Optic nerve.

Give the function of Facial nerve.

Page 0

With the help of a suitable diagram describe the structures of a neuron.

Briefly describe the structure of the cerebrum in human brain and mention its functions.

Mention the three functions of spinal cord.

With the help of suitable example, describe reflex action.

Describe three kinds of nerves, giving the example of each.

Differentiate between natural reflex and conditioned reflex. Give examples to illustrate your answer.

Page 0

Multiple choice question. Tick (✓) the correct choice:

Nervous system in humans consists of

  1. brain and nerves
  2. brain and spinal cord
  3. brain, spinal cord and nerves
  4. none of the above

Multiple choice question. Tick (✓) the correct choice:

Memory and intelligence are controlled by

  1. cerebrum
  2. medulla oblongata
  3. cerebellum
  4. spinal cord

Multiple choice question. Tick (✓) the correct choice:

Heartbeat and breathing are controlled by

  1. cerebrum
  2. spinal cord
  3. cerebellum
  4. medulla oblongata

Page 0

Fill in the blank:

Basic structural unit of the nervous system is the________.

Fill in the blanks:

Central nervous system consists of ________ and _________.

Fill in the blanks:

A neuron consists of ________ , _________ and ________.

Fill in the blank:

The neurons carrying impulses from the brain to the muscles are called _______________________.

Fill in the blank:

Peripheral nervous system consists of _________.

Fill in the blanks:

The three main parts of the brain are ______ , ________ and __________________.

Page 0

State whether the following statement is true (T) or false (F):

Each neuron consists of three parts called cell body, cyton and axon.

State whether the following statement are true (T) or false (F):

The largest part of the brain is the cerebrum.

State whether the following statement is true (T) or false (F):

Cerebellum maintains balance of the body,

State whether the following statement is true (T) or false (F):

There are 31 pairs of cranial nerves.

Page 0

Find the odd-one out, giving reason:

Axon, cell body, dendrite, cerebellum

Page 0

Define the term Reflex arc.

Define the term Sensory neuron.

Define the term Motor neuron.

Define the term Neuron.

Page 0

Describe the two parts of the nervous system.

Draw a labelled diagram showing the structure of a neuron.

What are nerves?

Mention the types of nerves found in humans.

Explain the structure of brain.

Compare the nervous system and the endocrine system.

Name three parts of brain.

Page 0

Multiple choice question. Tick (✓) the correct choice:

Reflex actions occur under the control of

  1. brain
  2. medulla oblongata
  3. spinal cord
  4. cerebrum

Multiple choice question. Tick (✓) the correct choice:

The coloured part of the eye is called

  1. retina
  2. iris
  3. lens
  4. pupil

Multiple choice question. Tick (✓) the correct choice:

 Pinna is a part of

  1. inner ear
  2. external ear
  3. middle ear
  4. tongue

Multiple choice question. Tick (✓) the correct choice:

The brown pigment melanin is present in ____ of skin.

  1. Epidermis
  2. Fat cells
  3. Dermis
  4. Hair follicles.

Page 0

Fill in the blank:

Sense organs have special cells called ____________ for picking up information and transmitting it to the nerves.

Fill in the blank:

Outer protective layer of skin, called epidermis is made up of ________ tissue.

Fill in the blank:

The coloured part of eye is called _______.

Page 0

State whether the following statement is true (T) or false (F):

The dermis of the skin is made up of epithelial cells.

State whether the following statement is true (T) or false (F):

The pigment melanin is present in inner layers of skin epidermis.

State whether the following statement is true (T) or false (F):

The sound waves from the outer ear are carried by the middle ear to the inner ear.

State whether the following statement is true (T) or false (F):

Cochlea is a part of middle car.

State whether the following statement is true (T) or false (F):

Retina is present on the outer surface of the eye.

Page 0

Find the odd-one out, giving reasons:
Pinna, eardrum, cochlea, ear canal

Page 0

Name the following:

Five sense organs of human beings and the sensation perceived by each one.

Name the following:

Flap like structure of outer ear.

Page 0

Define voluntary and reflex actions. Give examples of each.

Draw a labelled diagram to show the structure of skin.

Draw a labelled diagram of eye.

What are sense organs?

Give the functions of retina, pupil, and optic nerve.

Differentiate between rods and cones.

Selina Selina Concise Biology Class 8 (2018-19 Session)

Selina Concise Biology for Class 8 (2018-19 Session)

Selina solutions for Class 8 Biology chapter 7 - Nervous System

Selina solutions for Class 8 Biology chapter 7 (Nervous System) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Selina Concise Biology for Class 8 (2018-19 Session) solutions in a manner that help students grasp basic concepts better and faster.

Further, we at shaalaa.com are providing such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 8 Biology chapter 7 Nervous System are Concept of Nervous System, Types of Nerves: Sensory, Motor, Mixed, Types of Nerves - Cranial and Spinal Nerves, Structure of a Motor Neuron, Central Nervous System and Function, Concept of Reflex Action, Common Examples of Reflex Action., Human Body: Nervous System Questions.

Using Selina Class 8 solutions Nervous System exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 8 prefer Selina Textbook Solutions to score more in exam.

Get the free view of chapter 7 Nervous System Class 8 extra questions for Biology and can use shaalaa.com to keep it handy for your exam preparation

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