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प्रश्न
Give the functions of the spinal cord?
उत्तर
(i) It controls all the reflex actions occurring below the neck.
(ii) It conducts sensory impulses from the skin to the brain and motor impulses from the brain to the muscles of trunk and limbs.
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संबंधित प्रश्न
Differentiate between following pair with reference to the aspect in bracket.
cerebrum and spinal cord (arrangement of cytons and exons of neurons).
Choose the correct answer.
Number of spinal nerves in human beings ______________
Spinal cord and sympathetic ganglion of autonomous nervous system are connected by ______________.
Give Technical Term:
The brain and spinal cord together constitute the system known as.
The diagram given below shows the internal structure of the spinal cord, depicting a simple reflex. Study the same and then answer the questions that follow:
(i) Name the parts numbered 1 to 5.
(ii) Using the letters of the alphabet shown in the figure indicate the direction in which an impulse enters and leaves the spinal cord.
(iii) What is the term given to the point of contact between two nerve cells?
(iv) What is meant by ‘simple reflex’ ? Give two examples of simple reflexes and name the stimuli too.
(v) How does the arrangement of nerve cells in the spinal cord differ from that in the brain?
Complete the following sentence with appropriate word :
The part of the central nervous system which responds to the reflex action is ________.
Identify the odd item from the following series of words.
Describe the structure of the spinal cord.
______ connects the brain to a different part of the body through nerves.
In humans, the number of spinal nerves are ______.
