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प्रश्न
Complete the following sentence with appropriate word :
A nerve chain between a receptor and an effector organ is called _________.
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उत्तर
A nerve chain between a receptor and an effector organ is called Reflex arc.
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संबंधित प्रश्न
What is voluntary nervous system?
The human body contains a large number of cells A which are very long and branched, and look like electric wires. The longest branch of this cell is B whereas there are many small branches C. Any two A cells do not join to one another completely in the human body. There is a microscopic gap D between every pair of adjacent A cells through which electric impulses can pass by the release of a chemical substance.
(a) What are cells A?
(b) What is the name of (i) branch B, and (ii) branches C?
(c) What is the microscopic gap D known as?
(d) What is the function of cells like A in the human body?
(e) The cells A are of three types. name the three types.
With the help of a suitable diagram describe the structure of a neuron.
Where is this located?
Effector organs
Choose the correct answer.
Number of cranial nerves _____________
Explain the following in short.
What is a ganglion?
Which of the following cranial nerves are mixed type?
How is an electric impulse created in human nervous system?
Mohan is fond of playing basketball. His concentration is on shooting the ball into the opponent's basket as given in the picture.
- Which part of the brain helps Mohan to concentrate in putting the ball into the basket?
- Name the sense organ that helps to gauge the distance between the ball and the basket.
- Name the part of the brain that co-ordinates all the voluntary muscles of his body.
Statement I - Nervous tissue is without lymphatic vessels.
Statement II - Nervous tissue is endodermal in origin.
In light of above statements, choose the most appropriate correct answer from the option given below.
