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प्रश्न
Identify the odd item from the following series of words.
विकल्प
Knee jerk
Sneezing
Thinking
Blinking of eyes
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उत्तर
Knee jerk, Sneezing, Thinking, Blinking of eyes - Thinking (not a reflex action)
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संबंधित प्रश्न
Describe T.S. of the spinal cord.
Differentiate between following pair with reference to the aspect in bracket.
cerebrum and spinal cord (arrangement of cytons and exons of neurons).
Distinguish between the following pair of words:
Cranial nerve and spinal nerve
Distinguish between the following pair of words:
Motor and sensory nerve
Where is this located?
Ganglia
Fill in the blank with the function in the following:
Meninges: ______
Choose the correct answer.
Number of spinal nerves in human beings ______________
Spinal cord and sympathetic ganglion of autonomous nervous system are connected by ______________.
Give the functions of the spinal cord?
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?
The diagram given below represents the spinal cord of a mammal, seen in a transverse section together with the nerves. Study the diagram and then answer the questions given below:
(i) Label the parts 1—8 indicated by guidelines.
(ii) What do the arrows indicate? What is the pathway indicated termed?
(iii) What type of nerve is shown in the diagram?
Mention, if the following statement is True or False
Spinal nerves are twelve pair
Sketch and label T. S. of Spinal cord.
Which neuron conducts impulse from the spinal cord to the effector organ?
Which statement is correct regarding spinal nerves in man?
Sensory nerve fibres forming ascending tracts in white matter of spinal cord are located in ____________.
______ connects the brain to a different part of the body through nerves.
How are cytons and axons arranged in the spinal cord?
Spinal nerves are usually ______
Explain the formation of a typical spinal nerve with the help of a neat labelled diagram.
In humans, the number of spinal nerves are ______.
Given below is the transverse section of the spinal cord. Read the information below the diagram and fill in the blanks:
The spinal cord extends from the medulla oblongata of the brain and runs down through the whole length of the vertebral column. The spinal cord is covered by the meninges. It conducts impulses from the skin and muscles to the brain. It also conducts impulses from the brain to the muscles of the trunk and limbs.
The spinal cord is a part of the (a) ______ Nervous System. The grey matter in the picture given above consists of (b) ______ while the white matter consists of (c) ______. The spinal cord is concerned with the (d) ______ actions below the neck. (e) ______ is the bony structure that protects the spinal cord.
Mention where in the human body is the following located and state its main function:
Central canal
