A nerve impulse will travel through a ne...

A nerve impulse will travel through a nerve fibre only if its membrane suddenly becomes more permeable to ions of

Sodium

Calcium

Chloride

Potassium

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During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge ?

Explain the following processes: (a) Polarisation of the membrane of a nerve fibre. (b) Depolaristion of the membrance of a nerve fibre. (c ) Conduction of nerver impulse along a nerve fibre. (d) Transmission of a berve impulse across a chemical synapse.

Impulses travel much more rapidly along myelinated nerve.

Afferent nerve fibre carries impulses from

Distinguish between : (a) afferent neurons and efferent neurons (b) impulse conduction in an myelinated nerve fibre and unmyelinated nerve fibre (c ) aqueous humour and vitreous humor (d) blind spot and yellow spot (f) cranial nerves and spinal nerves .

[A] : Hair cells on the basilar membrane are responsible for hearing. [R]: Pressure waves which begin at the oval window, cause the basilar membrane to vibrate so that the cilia of the hair celis touch the tectorial membrane. This causes hair cells to initiate nerve impulses

During synaptic transmission of nerve impulse, neurotransmitter (P) is released from synaptic vesicles by the section of ions (Q). Choose the correct P and Q. a. P = acetylcholine, Q = Ca^(++) b. P = acetylcholine, Q = Na^(++) c. P = GABA, Q = Na^(+) d. P = cholinesterase, Q = Ca^(++)

Read the following statements and select the correct option Statement 1 : When the urine moves through the descending limb, it becomes hypertonic to blood plasma and as it passes through the ascending limb of Henl's loop it becomes hypotonic to blood plasma Statement 2 : The decending limb is permeable to sodium ions, while the ascending limb is impermeable to sodium ions

Distinguish between : impulse conduction in a myelinated nerve fibre and unmyelinated nerve fibre

Explain the following process : Polarisation of the membrane of a nerve fibre

TRUEMAN BIOLOGY-NEURAL CONTROL AND COORDINATION-MCQ

Parasympathetic ganglia are located in
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A polarized neuron is said to be in
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A nerve impulse will travel through a nerve fibre only if its membrane...
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Sodium pump stop operating during
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During repolarization of nerve
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Absolute refractory period during nerve impulse conduction is the peri...
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At the time of conduction of nerve impulse, the repolarization occurs ...
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Saltatory conduction of impulse occurs in
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Unidirectional transmission of nerve impulse is maintained by
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which of the following helps in transmission of impulse across the syn...
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Once a synaptic junction between neurons has allowed transmission of a...
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Among which one of the following groups of chemicals, all are neurotra...
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Broca's motor speech area occurs in
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Part of the brain concerned with the muscular movement is
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In the diagram of the lateral view of the human brain, parts are indic...
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Read the statements. A. Preganglionic nerve fibres of III, VII, IX a...
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A man is admitted toa hospital. He is suffering from an abnormally low...
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In a cross section of the spinal cord A, B, C, D and E represent
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Which function will be lost due to damaged of occipital lobe
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Pain is experienced by
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