EASY
Earn 100

Nissl bodies found in neurons are _____.

50% studentsanswered this correctly

Important Questions on Nervous system and Sense Organs

MEDIUM
The two components of autonomous nervous system have antagonistic actions. But in certain cases their effects are mutually helpful. Which of the following statement is correct?
EASY

"Myelin sheath accelerates the speed of impulses through axon and provides nutrition to it."

How does myelin sheath form?

EASY
Stimulus from the environment is detected by the nerve cells. The stimulus acquired is transmitted in the form of electrical impulses. From the options given below choose the correct scheme showing the direction in which the nerve impulse travels. (Arrows shows the direction of impulse flow)
EASY

Label the parts corresponding to the alphabets in the given diagram given?

Question Image

MEDIUM

How does nerve impulse travel in our body?

MEDIUM
The cells which form blood brain barrier in the central nervous system are
EASY

Observe the picture and answer the following question

Question Image

How does myelin sheath form ?

MEDIUM
What is correct for the sympathetic nervous system?
EASY

Redraw the diagram. Name and label the parts indicated, below,

Question Image

Branches of dendrons

EASY

Redraw the diagram. Name and label the parts indicated, below,

Question Image

Secretes neurotransmitter

MEDIUM
How do nerve impulses travel in the body ? Explain.
MEDIUM

The diagram is given below the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the questions.

Question Image

Give the technical term for the point of contact between the two nerve cells.

MEDIUM
Oligodendrocytes and astrocytes are neuroglial cells found in ___.
a) Peripheral nervous system involved in the formation of the myelin sheath.
b) Central nervous system in which oligodendrocytes form myelin sheath and astrocytes bind neurons with capillaries.
c) Autonomic nervous system in which both cells provide support.
d) Sympathetic nervous system in which the two cells help in conduction.
MEDIUM
 Identify the ODD term in each set and name the CATEGORY to which the remaining three belong:
EASY
Determine the number of Cranial nerves in human body -
HARD
Describe the structure of a Neuron with the help of labelled diagram.
MEDIUM

Write any two differences between axon and dendrites. 

MEDIUM

Write a and b in the given flow chart of neuron through which information travels as an electrical impulse.

Question Image