#neurophysiology MCQ

Cardiac Cycle and Regulation

Primary neurotransmitter released at NTS by baroreceptor afferents is:

Correct option is C, Glutamate. In Cardiac Cycle and Regulation, the accurate description is Glutamate, and that is what you should commit to memory. Keep the definition tight and the role clear — Glutamate is the option that correctly names the structure, process, or principle asked for in Cardiac Cycle and Regulation. Then Glutamate is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Glutamate. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Structure and Function of Nervous System

Pyramidal neurons of cerebral cortex mainly function as:

Pick B: Output neurons. Thinking about Structure and Function of Nervous System in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: the functional job described in the stem is exactly what Output neurons does in Structure and Function of Nervous System. Hence Output neurons is correct. Treat this as a building block for the rest of Structure and Function of Nervous System; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Structure and Function of Nervous System

Basal nuclei are mainly involved in:

Motor coordination and posture (B) is the right choice. This sits at the heart of Structure and Function of Nervous System: the wording points straight to what is happening in the tissue or organ system. A useful study habit is to ask what the structure or process is for: the functional job described in the stem is exactly what Motor coordination and posture does in Structure and Function of Nervous System. That reasoning supports Motor coordination and posture. One solid sentence about why this works is enough for recall — you do not need a long essay for every MCQ. When you practise, cover the choices first, write Motor coordination and posture from memory, then reveal the letter — that habit builds real recall for Structure and Function of Nervous System.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Synapse

Retrograde axonal transport uses which motor protein?

Answer: B) Dynein. For Synapse, once you lock onto the key mechanism or definition, Dynein is the clear fit. If you restate the concept in your own words, Dynein is the option that correctly names the structure, process, or principle asked for in Synapse. So Dynein is the clean, accurate selection. If a similar stem appears later, start from the same core fact and you will land on the same kind of answer. In class notes, highlight this same phrase next to the related diagram so the wording and the picture reinforce each other. When you practise, cover the choices first, write Dynein from memory, then reveal the letter — that habit builds real recall for Synapse.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Synapse

Neurotransmitter removal by enzymatic degradation is best exemplified by:

Correct option is C, Acetylcholine. In Synapse, the accurate description is Acetylcholine, and that is what you should commit to memory. Keep the definition tight and the role clear — Acetylcholine is the option that correctly names the structure, process, or principle asked for in Synapse. Then Acetylcholine is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Acetylcholine. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Synapse

Neurotransmitter release from synaptic vesicles occurs by:

The correct answer is C: Exocytosis. In Synapse, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, Exocytosis is the option that correctly names the structure, process, or principle asked for in Synapse. That is why Exocytosis is the option that holds up when you check it against basic physiology. When you revise, say the answer out loud with one short reason attached; that sticks better than rote lists. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Synapse

Opening of which ion channel in presynaptic terminal triggers neurotransmitter release?

The correct answer is C: Voltage-gated Ca2+ channel. In Synapse, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, excitable-cell physiology turns on membranes, ions, and signalling steps, and Voltage-gated Ca2+ channel captures the correct piece of that story. That is why Voltage-gated Ca2+ channel is the option that holds up when you check it against basic physiology. When you revise, say the answer out loud with one short reason attached; that sticks better than rote lists. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Synapse

Chemical synapses differ from electrical synapses because they:

Correct option is C, Use neurotransmitters. In Synapse, the accurate description is Use neurotransmitters, and that is what you should commit to memory. Keep the definition tight and the role clear — cause and effect line up with Use neurotransmitters — that is the mechanism or reason the stem is pointing to. Then Use neurotransmitters is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Use neurotransmitters. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Synapse

The distance across an electrical synapse (gap junction) is approximately:

Pick B: 3.8 nm. Thinking about Synapse in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: 3.8 nm is the option that correctly names the structure, process, or principle asked for in Synapse. Hence 3.8 nm is correct. Treat this as a building block for the rest of Synapse; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto 3.8 nm.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Synapse

Most synapses between neurons are structurally classified as:

Axodendritic (C) is the right choice. This sits at the heart of Synapse: the wording points straight to what is happening in the tissue or organ system. A useful study habit is to ask what the structure or process is for: Axodendritic is the option that correctly names the structure, process, or principle asked for in Synapse. That reasoning supports Axodendritic. One solid sentence about why this works is enough for recall — you do not need a long essay for every MCQ. When you practise, cover the choices first, write Axodendritic from memory, then reveal the letter — that habit builds real recall for Synapse.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Action potential

During depolarization, membrane potential becomes:

Go with B — Less negative. Within Action potential, that statement lines up with the standard definition and the usual exam wording you’ll see. In plain terms, Less negative is the option that correctly names the structure, process, or principle asked for in Action potential. Holding that picture in mind makes Less negative feel natural rather than something you only memorise. Link the term to a real body example (organ, tissue, or ion flow) so the idea stays concrete under exam pressure. A short mental diagram helps — start from stimulus or structure, follow the pathway, and stop at the functional result described by Less negative.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Action potential

Peak C of compound action potential represents:

Answer: D) C fibers. For Action potential, once you lock onto the key mechanism or definition, C fibers is the clear fit. If you restate the concept in your own words, C fibers is the option that correctly names the structure, process, or principle asked for in Action potential. So C fibers is the clean, accurate selection. If a similar stem appears later, start from the same core fact and you will land on the same kind of answer. In class notes, highlight this same phrase next to the related diagram so the wording and the picture reinforce each other.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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