NEURAL CONTROL AND COORDINATION

 

NEURAL CONTROL AND COORDINATION

Q1.Which part of the brain has centres for controlling respiration, cardiovascular reflexes and gastric secretions?  

(1) Cerebrum 

(2) Cerebellum

(3) Medula 

(4) Pons 

Ans.3

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Q2.A major coordinating centre for sensory and motor signalling that is wrapped by the cerebrum is 

(1) Thalamus 

(2) Epithalamus 

(3) Hypothalamus 

(4) Cerebellum 

Ans.1

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Q3.Match the columns. 

               Column I                  Column ll

a.Bipolar neuron        1.Schwann cells 

b.Myelin sheath         2. Cerebral cortex 

c.Multipolar neuron  3.    Retina of eye 

d.Unmyelinated         4.Autonomic 

   Nerve.                        neural system

(1) a(i), b(iii), c(ii), d(iv)

(2) a(iii), b(i), c(ii), d(iv)

(3) a(iv), b(ii), c(i), d(iii)

(4) a(i), b(ii), c(iii), d(iv)

Ans.2

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Q4.Depolarisation of neural membranes is caused due to 

(1) Rapid influx of Na+ ions 

(2) Rapid influx of K+ ions 

(3) Rapid efflux of Na+ ions 

(4) Rapid influx of Cl– ions 

Ans .1

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Q5. A chemical synapse is formed by

(1) Only synaptic cleft 

(2) Only presynaptic membrane and synaptic knob 

(3) Connection through gap junctions between presynaptic knob and postsynaptic membrane 

(4) Presynaptic membrane, synaptic cleft and postsynaptic membrane 

Ans.4

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Q6.Choose the membrane from the options given below which separates scala media and scale tympani of the cochlea.

(1) Reissner's membrane 

(2) Tectorial membrane 

(3) Basilar membrane 

(4) Tympanic membrane Which of the

Ans.3

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Q7.following statements is incorrect w.r.t. knee jerk reflex? 

(1) Single synapse with interneurons between afferent and efferent pathway 

(2) Synapse formed is without interneurons between sensory and motor pathway 

(3) Synapse stimulates the contraction of quadricep muscle 

(4) Muscle spindle works as receptor in this monosynaptic reflex 

Ans.1

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Q8.Above the rows of hair cells in cochlea is a thin elastic membrane called 

(1) Tectorial membrane 

(2) Reissner's membrane 

(3) Tympanic membrane 

(4) Sclera

Ans.1

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Q9.Choroid layer forms cillary body in the A poson of eye and is thin over the B portion of eye bell Choose the option which fits the blank correctly. 

                   A                             B

(1) Anterior        Posterior two-thirds 

(2) Posterior     Anterior two-thirde 

(3) Anterior      Posterior one-thirds 

(4) Posterior   Anterior one-thirds 

Ans.1

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Q10.Equal stimulation of all three types of cones will result in sensation of

(1) Green light 

(2) White light 

(3) Red light 

(4) Blue light 

Ans.2