The peaks of the compound action potential (i.e., A, B and C) recorded from a mammalian mixed nerve were affected after application of increasing pressure on the nerve. Some probable […]
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CSIR NET Life Science Previous Year Questions and Solution on Animal Physiology
Mechanical Pressure on Peripheral Nerve Fibers: Why Touch Is Blocked but Pain Passes
A mechanical pressure was exerted on a specific location of a peripheral nerve of a mammal. The touch or pain receptors were stimulated from the skin surface innervated by the […]
CSIR NET Life Science Previous Year Questions and Solution on Animal Physiology
Understanding Nerve Fiber Types in Touch and Pain Sensation: Identifying Incorrect Statements
External pressure given on a mixed nerve causes loss of touch sensation while pain sensation remains relatively intact. On the other hand, application of local anesthetics on the same nerve, […]
CSIR NET Life Science Previous Year Questions and Solution on Animal Physiology
Which Neurotransmitters Are NOT Released by Sympathetic Preganglionic Neurons?
Which one of the following is NOT released by sympathetic preganglionic neurons? (1) Neurotensin (2) Enkephalin (3) Serotonin (4) Substance P The sympathetic nervous system plays a crucial role in […]
CSIR NET Life Science Previous Year Questions and Solution on Animal Physiology
Sympathetic Postganglionic Neurons That Are Cholinergic: What They Innervate
Sympathetic post-ganglionic neurons that are cholinergic, innervate (1) sweat glands (2) parotid glands (3) hair follicles (4) Pancreas In the sympathetic nervous system, postganglionic neurons typically release norepinephrine to activate […]
CSIR NET Life Science Previous Year Questions and Solution on Animal Physiology
Location of Sympathetic Preganglionic Neuron Cell Bodies: Key Facts Explained
The cell bodies of sympathetic-preganglionic neurons are located in (1) Intermediolateral cell column of spinal cord (2) Posterior cell column of spinal cord (3) Celiac ganglion (4) Paravertebral ganglion The […]
CSIR NET Life Science Previous Year Questions and Solution on Animal Physiology
Neurotransmitter Secreted by Preganglionic Neurons of the Sympathetic Nervous System
Which one of the following neurotransmitters is secreted by the pre-ganglionic neurons of sympathetic nervous system? (1) Epinephrine (2) Acetylcholine (3) Dopamine (4) Norepinephrine Preganglionic neurons of the sympathetic nervous […]
CSIR NET Life Science Previous Year Questions and Solution on Animal Physiology
Understanding Variations in Rat Brain Stimulation: Electrode vs. Cannula Effects Explained
A response was observed when a specific site in a rat brain was stimulated by passing electrical pulses through indwelling electrode implanted surgically. In another experiment in another rat, a […]
CSIR NET Life Science Previous Year Questions and Solution on Animal Physiology
Effects of Cerebellectomy on Motor Function in Monkeys: Understanding Postoperative Outcomes
A monkey undergoes cerebellectomy. After the post- operative recovery, the monkey was given a task to press a bar. The possible observations are: A. Its hand would overshoot the target […]
CSIR NET Life Science Previous Year Questions and Solution on Animal Physiology
Memory of Facts and Events: The Role of the Hippocampus in Memory Consolidation
Memory of facts and events is not consolidated if there is an injury to (1) striatum. (2) amygdala. (3) cerebellum. (4) Hippocampus. Memory consolidation refers to the process by which […]
