What happens at the synapse between two neurons? - Science

Answer in Brief

What happens at the synapse between two neurons?



A very small gap that occurs between the last portion of the axon of one neuron and the dendrite of the other neuron is known as a synapse. It acts as a one-way valve to transmit impulses in one direction only.

This one-directional transfer of impulses occurs as the chemicals are produced on only one side of the neuron, i.e., the axon’s side. From the axon, the impulses travel across the synapse to the dendrite of the other neuron.

  Is there an error in this question or solution?
Chapter 2: Control and Coordination - Exercise 2 [Page 117]


Lakhmir Singh Class 10 Biology (Science)
Chapter 2 Control and Coordination
Exercise 2 | Q 56.2 | Page 117
NCERT Science Class 10
Chapter 7 Control and Coordination
Intext Questions | Q 2 | Page 119
NCERT Exemplar Science Class 10
Chapter 7 Control and Coordination
Short Answer Questions | Q 42. | Page 63

Video TutorialsVIEW ALL [1]


Differentiate between voluntary and involuntary movements.

State the different types of neurons.

Write the names and functions of three parts of human nervous system in which it is divided.

What is the function of receptors in our body?

What is the need for a system of control and coordination in an organism?

Nervous system is absent in _____________.

Write the names of the indicated parts 1 to 6 in the following diagram:

Name the three types of nerves which constitute the peripheral nervous system.

The human brain can be broadly divided into three regions. name these three regions.

What is cranium? What is its function?

What are the main organs of the human nervous system? Draw a labelled diagram to show the main organs of the human nervous system.

The spinal cord originates from:

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

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 :

Fill in the blank:

Peripheral nervous system consists of _________.

What are nerves?

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

The coloured part of the eye is called

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

Fill in the blank:

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

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.

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

Differentiate between rods and cones.

Name the three main parts of the human brain. 

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

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

Mention the three functions of the spinal cord. 

What are voluntary and involuntary actions? Which part of the nervous system controls them?

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

Nervous system in humans consists of

Fill in the blank: 

The three main parts of the brain are ................................ and ............................

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 is 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): 

There are 31 pairs of cranial nerves. 

Define the following: 

Reflex arc  

Explain the structure of the brain.

Differentiate between following pair with reference to the aspect in bracket.

sympathetic nervous system and para – sympathetic nervous system (overall effect on body)

Given below is certain structure. Write against them its functional acivity.

Taste bud and …………………..

Define the following:
Nerve impulse

Distinguish between the following pair of words:
Nervous system and hormonal system

Where is this located?
Nodes of Ranvier

Choose the correct answer.
Man has ______ pairs of spinal nerves.

Draw a well-labeled diagram of a Neuron.

Draw the following diagram:
Draw a neat labeled diagram of a neuron.

Answer the following question:
What is a reflex action? Explain it with two examples. 

Explain the Term: Voluntary-action

Explain the Term: Natural reflex

Complete the following sentence with appropriate word :
 A bundle of axons enclosed in a tubular sheath is called _________.

State the Location of: 
Made of Ranvier

What does the cerebellum of the brain control?

Short answer question

Give a reason - Injury to medulla oblongata may prove fatal.

Long answer question

Krishna was going to school and on the way, he saw a major bus accident. His heartbeat increased and hands and feet become cold. Name the part of the nervous system that had a role to play in this reaction.

Long answer question

Explain the Reflex Pathway with the help of a neat labelled diagram.

Answer the following question.

Describe the nervous system of cockroach.

Explain the following in short.

What is a ganglion?

Degeneration of dopamine producing neurons in the CNS causes ______ disease.

The third ventricle of brain is connected to the fourth ventricle of brain through ______.

Which cells of PNS secrete myelin sheath around the nerves?

Describe the functional areas of Cerebrum.

Distinguish between

Sympathetic and parasympathetic nervous system.

The human nervous system is divided into ______ parts.

The functional unit of kidney is neuron.

The brain, the spinal cord and nerves form the nervous system.

List out the functions of Endocrine system and Nervous system.

The outermost of the three cranial meninges are ______

The node of Ranvier is found in ______

Vomiting centre is located in ______

______ and ______ increases the surface area of cerebrum.

Define stimulus.

Which acts as a link between the nervous system and endocrine system?

The cerebrum controls the voluntary actions of our body.

Pons helps in regulating respiration.

Which of the following statements is TRUE for Wernicke's area?

How many pairs of cervical spinal nerves are present in humans?

Which is the ninth cranial nerve in humans?

Identify the CORRECT sequence of meninges. (From inside to outside)

What is the amount of CSF present in and around the CNS?

What are the parts of the brain stem?

Which of the following is NOT a part of forebrain?

Identify the match that pairs the nerve correctly with its type.

All of the following are true for human brain, EXCEPT ______.

Identify the motor nerves.

Nervous system is well developed in human and is composed of ______ or ______.

The nervous system consists of bones, cartilages, and joints.

What constitutes the central and peripheral nervous systems? How are the components of central nervous system protected?

Destruction of the anterior horn cells of the spinal cord would result in loss of ______. 

Hearing is controlled by ______

Visceral nervous system comprises of ______.

How many spinal nerves are there, and to which groups they belong?

Think of situations where receptors do not work properly. What problems are likely to arise?


      Forgot password?
Use app×