NEURAL CONTROL AND COORDINATION

 

Q41.Which part of brain plays important role i emotional behaviour such as aggression, rage an remembering fear? 

(1) Hippocampus 

(2) Amygdala 

(3) Corpus striatum 

(4) Cerebrum 

Ans.2

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Q42.During accommodation for near vision

(1) Images from the objects are focussed in fro of yellow spot

(2) Focussing power of the lens is increased 

(3) Sympathetic nerves to the eye are activated 

(4) The pupil does not constrict

Ans.2

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Q43.The membrane that gives us the ability discriminate different pitches of sound is the 

(1) Tympanic membrane gh voltage gated channels h voltage gated channels 

(2) Tectorial membrane axolemma is seen y occurs at this site 

(3) Basilar membrane 

(4) Reissner's membrane

Ans.3

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Q44.The major advantage of chemical synapse as compared to electrical synapse is that the 

(1) Nature of messenger neurotransmitter can be different in different synapse, permitting different kinds of response 

(2) Speed of conduction is fast in chemical synapse 

(3) Chemical synapse can work at farthest end of the body and shows two way flow

(4) Chemical synapse can work on different neurons simultaneously 

Ans.1

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Q45.Where is the sensory information for smell finally interpreted? 

(1) Olfactory bulb 

(2) Olfactory area in temporal lobe 

(3) Olfactory lobe 

(4) Olfactory area in parietal lobe

Ans.2

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Q46.Which of the following statements is not correct?  

(1) In the knee-jerk reflex, stimulus is the stretching of muscle and response is its contraction 

(2) An action potential in an axon does not move backward because the segment behind is in a refractory phase 

(3) Depolarisation of hair cells of cochlea results in the opening of the mechanically gated potassium-ion channels 

(4) Rods are very sensitive and contribute to daylight vision 

Ans.4

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Q47.Which of the following receptors are specifically responsible for maintenance of balance of body and posture? 

(1) Crista ampullaris and macula 

(2) Basilar membrane and otoliths 

(3) Hair cells and organ of corti ated the ability to und is the 

(4) Tectorial membrane and macula 

Ans.1

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Q48.Which part of the brain is responsible for thermoregulation?  

(1) Cerebrum 

(2) Hypothalamus

(3) Corpus callosum

(4) Medulla oblongata

Ans.2

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Q49.Which of the following statements is correct? 

(1) Cornea is an external, transparent and protective proteinacious covering of the eye-ball. 

(2) Cornea consists of dense connective tissue of elastin and can repair itself. 

(3) Cornea is convex, transparent layer which is highly vascularised. 

(4) Cornea consists of dense matrix of collagen and is the most sensitive portion the eye. 

Ans.4

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Q50.Which of the following structures or regions is incorrectly paired with its functions?  

(1) Medulla oblongata : controls respiration and cardiovascular reflexes. 

(2) Limbic system consists of fibre tracts that Interconnect different regions of brain; controls movement. 

(3) Corpus callosum :band of fibers connecting left and right cerebral hemispheres. 

(4) Hypothalamus production of releasing hormones and regulation of temperature, hunger and thirst. 

Ans.2

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