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प्रश्न
Give the functions of medulla.
उत्तर
The medulla controls various involuntary actions such as the heart beat, breathing, blood pressure and peristaltic movements of the alimentary canal.
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संबंधित प्रश्न
Fill in the following blank with suitable word :
A neuron which carries an impulse to the brain is called a ........... neuron.
What are the various sense organs in our body?
Explain the difference between of the following pair of terms :
receptor and effector
When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the smell of the food?
What is a reflex action? Explain with the help of an example.
One of the following controls the peristaltic movements of alimentary canal. This one is :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
When we touch a hot plate unknowingly, then this heat is sensed by a receptor P present in our fingers. The receptor triggers and impulse in neuron Q which transmits the message to an organ R which is a part of the central nervous system. Here the impulse is passed on to a neuron S which in turn passes it to a yet another neuron T. The neuron T passes the impulse to a tissue U in our arm. The tissue U then contracts and pulls our hand away from the hot plate.
(a) What is the name of (i) receptor P (ii) neuron Q, and (iii) organ R?
(b) What is (i) neuron S, and (ii) neuron T?
(c) Name the tissue U.
(d) What name is given to the phenomenon in which hand is pulled away quickly from the hot plate?
(e) Name the effector in this whole process.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Knitting without looking
Complete the following sentence with appropriate Word
The control of reflex action is through:
Which of the following is not involved in Knee-jerk reflex?
