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प्रश्न
State whether the following is simple reflex, conditioned reflex or neither of the two.
Contraction of eye pupil
पर्याय
Simple reflex
Conditioned reflex
None of the above
उत्तर
Simple reflex
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संबंधित प्रश्न
Which part of the brain maintains posture and equilibrium of the body?
Name one gustatory receptor and one olfactory receptor present in human beings.
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?
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
The gustatory receptors of our body are in one of the following organs. This organ is :
a) ear
(b) nose
(c) tongue
(d) skin
P is a cell (or group of cells) in the human body which is sensitive to a particular type of stimulus and conveys the messages to CNS through nerves Q. On the other hand, R is a part of the human body which can respond to a stimulus according to the instructions sent from the CNS through nerves S.
(a) What is P? Name five organs which contain cells (or group of cells) like P.
(b) Name the nerves Q.
(c) What is R? Give two examples of R.
(d) Name nerves S.
(e) How do messages travel through the nerves Q and S?
State whether the following is
The sudden application of brakes without thinking
What type of reflex is the following?
Blinking of the eye
Why have reflex arcs evolved in animals?
