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प्रश्न
Name the most important part of the human brain.
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उत्तर
The cerebrum (forebrain) is the most important part of the human brain.
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संबंधित प्रश्न
Which of the following is not a natural reflex action?
A. Knee-jerk
B. Blinking of eyes due to strong light
C. Salivation at the sight of food
D. Sneezing when any irritant enters the nose
What are the various sense organs in our body?
What is meant by receptors and effectors? Give two examples of each.
Give the functions of medulla.
Explain the difference between of the following pair of terms :
cerebrum and cerebellum
When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the cells in your nasal passages which perceive the smell?
Define reflex arc. Give the flow chart of a spinal reflex arc.
Cerbellum, medulla and pons are the parts of :
(a) mid-brain
(b) hind-brain
(c) forebrain
(d) spinal cord
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 olfactory receptors in humans are located in :
(a) eyes
(b) tongue
(c) ears
(d) nose
Your are driving your bicycle at a fast speed. Suddenly, a small boy comes in front of your cycle and, without wasting any time in thinking, you immediately apply the brakes and accident is avoided. What name is given to such an action?
What is the difference between reflex action and voluntary action?
Explain the following term :
Conditioned reflex
State whether the following is simple reflex, conditioned reflex or neither of the two.
Lifting up a book
State whether the following is
The sudden application of brakes without thinking
State whether the following is
Salivation when food is put in the mouth.
Complete the following sentence with appropriate Word
Which of the following is not a natural reflex action?
Which of the following is an example of unconditioned reflex?
Why have reflex arcs evolved in animals?
