NEURAL CONTROL AND COORDINATION

 

Q141.If the inside of the membrane becomes more negative than the resting membrane potential it leads to 

(1) Depolarisation 

(2) Hyperpolarisation 

(3) Repolarisation 

(4) Hypopolarisation 

Ans.2

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Q142.Suppose the terminal ends of an axon are in contact with dendrites of four adjacent neurons, the nerve impulse of the axon will 

(1) Travel in all the four neurons 

(2) Get distributed in all the four neurons resulting in a weak impulse 

(3) Travel only in one neuron which is in closest contact and with the same intensity

(4) Travel in none of the neurons because the impulse travels from dendrites of one neuron into the axon of another neuron 

Ans.1

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Q143.Axon endings release from its synaptic vesicles, a neurotransmitter known as

(1) Acetylcholine 

(2) Acetylcholinesterase 

(3) Inositol-3 phosphate 

(4) Diacylglycerol 

Ans.1

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Q144.Which part of brain is involved in movement of head to locate and detect the source of a sound? 

(1) Superior colliculi 

(2) Inferior colliculi 

(3) Pons

(4) Medulla oblongata 

Ans.2

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Q145.Which part of the brain is like a defense castle controlling moods and plays an important role in emotional behaviour, such as aggression and remembering fear? 

(1) Hippocampus 

(2) Amygdala 

(3) Basal nuclei 

(4) Thalamus 

Ans.2

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Q146.The link between paracoel and diocoel is through 

(1) Foramina Luschka 

(2) Foramina Magendie

(3) Foramen of Monro 

(4) Aqueduct of Sylvius 

Ans.3

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Q147.The function of choroid plexus is to produce 

(1) Lymph 

(2) Blood 

(3) Cerebrospinal fluid 

(4) Endolymph

Ans.3

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Q148.Branched tree like structure present in cerebellum is

(1) Arborial 

(2) Areole 

(3) Arbor vitae 

(4) Archenteron 

Ans.4

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Q149.The gatekeeper of consciousness is

(1) Cerebellum 

(2) Pons 

(3) Reticular formation 

(4) Limbic system 

Ans.3

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Q150.End of spinal cord is 

(1) Cauda equina 

(2) Conus terminalis 

(3) Filum terminalis 

(4) Funiculus 

Ans.2

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