#physiology revision

Thermoregulation

Thermogenic role of brown adipose tissue is most significant in:

Correct option is C, Newborns. In Thermoregulation, the accurate description is Newborns, and that is what you should commit to memory. Keep the definition tight and the role clear — the functional job described in the stem is exactly what Newborns does in Thermoregulation. Then Newborns 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 Newborns. 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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Cardiac Cycle and Regulation

Increase in thoracic cavity volume during inspiration causes:

The correct answer is B: Decrease in alveolar pressure. In Cardiac Cycle and Regulation, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, Decrease in alveolar pressure is the option that correctly names the structure, process, or principle asked for in Cardiac Cycle and Regulation. That is why Decrease in alveolar pressure 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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Blood and their Component

Urobilin is excreted mainly through:

Urine (C) is the right choice. This sits at the heart of Blood and their Component: 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 Urine does in Blood and their Component. That reasoning supports Urine. 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 Urine from memory, then reveal the letter — that habit builds real recall for Blood and their Component.

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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Endocrinology

Which anterior pituitary hormone lacks a specific inhibiting hormone?

Answer: B) FSH. For Endocrinology, once you lock onto the key mechanism or definition, FSH is the clear fit. If you restate the concept in your own words, FSH is the option that correctly names the structure, process, or principle asked for in Endocrinology. So FSH 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 FSH from memory, then reveal the letter — that habit builds real recall for Endocrinology.

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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Action potential

Receptor potential differs from action potential because it:

Pick B: Is graded. Thinking about Action potential 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: cause and effect line up with Is graded — that is the mechanism or reason the stem is pointing to. Hence Is graded is correct. Treat this as a building block for the rest of Action potential; 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 Is graded.

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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