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प्रश्न
Complete the following sentence with appropriate Word
Which of the following is not a natural reflex action?
पर्याय
Knee-jerk
Blinking of eyes due to strong light
Salivation at the sight of food
Sneezing when any irritant enters the nose
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उत्तर
Salivation at the sight of food
APPEARS IN
संबंधित प्रश्न
Which part of the brain maintains posture and equilibrium of the body?
Name two parts of the body which contain receptors of chemical stimuli.
What are the various sense organs in our body?
Give the functions of medulla.
The involuntary actions in the body are controlled by :
(a) medulla in forebrain
(b)medulla in hindbrain
(c) medulla in spinal cord
(d) medulla in midbrain
The contraction of pupil of the eye in the presence of bright light is an example of :
(a) Voluntary reflex
(b) Spinal reflex
(c) Cerebral reflex
(d) Adrenal reflex
State whether the following is
The sudden application of brakes without thinking
Complete the following sentence with appropriate Word
The control of reflex action is through:
Which sensory organ is involved in vertigo (sensation of oneself or objects spinning around)?
The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the following questions.
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- Name the phenomenon shown in the figure and define the same.
- Identify the parts labelled as 1 and 2. Write one functional difference between these two.
- Name the bony protective covering and the membranous protective covering of the spinal cord.
- Label the guidelines 3 and 4.
- How is the labelled part 3 different from part 4 with respect to its composition (part of neuron)?
- Give the technical term for the point of contact between the two nerve cells.
- Name the fluid filled inside the central canal of spinal cord.
- Name the term used for a small gap between two neurons.
- Give one example of a neurotransmitter.
- Draw a neat diagram of a nerve cell and label the parts: Perikaryon, Node of Ranvier, Myelin sheath and Axon terminals.
