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प्रश्न
Cerbellum, medulla and pons are the parts of :
(a) mid-brain
(b) hind-brain
(c) forebrain
(d) spinal cord
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उत्तर
(b) hindbrain
The hindbrain consists of three centres called the pons, the cerebellum and the medulla.
The forebrain consists mainly of the cerebrum.
The midbrain does not have any further divisions.
The spinal cord is a cylindrical structure.
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संबंधित प्रश्न
How are involuntary actions and reflex actions different from each other?
If we happen to touch a hot object unknowingly, we immediately pull back our hand. What is this type of action known as?
State one function each of cerebellum and pons.
What is meant by receptors and effectors? Give two examples of each.
What is the difference between a voluntary and an involuntary action? Which kind of action is digestion? Explain your choice.
One of the following controls the peristaltic movements of alimentary canal. This one is :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
All the voluntary actions of our body are controlled by :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
Which of the following statements are true?
(i) sudden action in response to something in the environment is called reflex action
(ii) sensory neurons carry electrical signals from spinal cord to muscles in a reflex action
(iii) motor neurons carry signals from receptors to spinal cord in a reflex action
(iv) the pathway of transmitting signals from a receptor to a muscle is a reflex action
Define voluntary and reflex actions. Give examples of each.
Explain the mechanism of reflex action with the help of a suitable diagram.
State whether the following is
Sneezing
State whether the following is simple reflex, conditioned reflex or neither of the two.
Knitting without looking
State whether the following is
The sudden application of brakes without thinking
What type of reflex is the following?
Blinking of the eye
Mention, if the following statement is True or False
Reflex action involves brain
In reflex action, the reflex arc is formed by ______
A change in the environment that causes an animal to react is called ______.
Differentiate between Voluntary and involuntary actions.
Categorise the following under stimulus and response.
Pain in the eye if something falls into it.
