Advertisements
Advertisements
प्रश्न
Which of the following helps in maintaining posture and balance of the human body?
विकल्प
cerebellum
cerebrum
medulla
pons
Advertisements
उत्तर
cerebellum
Explanation:
The cerebellum is a part of the hindbrain which helps in maintaining posture and balance of the body.
APPEARS IN
संबंधित प्रश्न
With the help of a neat and labelled diagram, describe reflex arc.
Give examples of unconditional reflexes
Name one gustatory receptor and one olfactory receptor present in human beings.
State whether coughing is a voluntary action or reflex action.
Give the various functions of brain.
The part of brain which controls the involuntary action such as heart beat, breathing, blood pressure, etc. is :
(a) pons
(b) medulla
(c) cerebrum
(d) cerebellum
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?
A cylindrical structure P in our body begins in continuation with medulla and extends downwards. It is enclosed in a bony cage Q and surrounded by membranes R. As many as x pairs of nerves arise from the structure P. The structure P is involved in the reflex actions of our body and conduction of nerve impulses to and from another organ S of our body with which it forms CNS.
(a) Name the structure P.
(b) Name (i) bony cage Q, and (ii) membranes R.
(c) How much is x?
(d) Name the organs S.
(e) What are the reflexes involving structure P only known as?
Differentiate between the following pair of terms:
Stimulus and impulse
Define voluntary and reflex actions. Give examples of each.
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Receptor : Sensory nerve :: Motor nerve : ______.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Sudden application of brakes of the cycle on sighting an obstacle in front
Reflex action is controlled by the
Explain the following term :
Conditioned reflex
State whether the following is
Playing on the Keyboard
What type of reflex is the following?
Knitting and swimming
Give Technical Term:
Response to a stimulus without the intervention of the will of an animal.
Which of the following is not involved in Knee-jerk reflex?
Which sensory organ is involved in vertigo (sensation of oneself or objects spinning around)?
How is the mode of action in beating of the heart different from reflex actions? Give four examples.
