Biology

Nervous System Physiology

1,959 Questions

Enhance your knowledge of human neurobiology through questions on nervous system physiology. The topics cover brain anatomy, sensory modalities, and the neural mechanisms controlling speech and language. This resource is ideal for students preparing for medical and general science exams.

Brain anatomy and regionsNeural mechanismsLanguage processingSensory functions

Nervous System Physiology Questions

Multiple choice

Which among the following is highly effective in increasing the level of acetylcholine during the synapse formation?

  1. Increasing dietary acetyl coenzyme A

  2. Increasing the production of acetyl coenzyme A

  3. Increasing dietary choline

  4. Activation of the enzyme acetylcholinesterase

  5. Decreasing choline uptake
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Although the administration of drugs to enhance acetyl coenzyme A, production is not effective in elevating acetylcholine neurotransmission, cholinergic neurons increase their coenzyme A production as a means of increasing acetylcholine availability for neurotransmission.

Multiple choice

Primary auditory cortex of the human ear lies in

  1. parietal lobe

  2. lateral surface of occipital lobe

  3. middle frontal gyrus

  4. parahippocampal gyrus

  5. superior temporal gyrus
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The superior temporal gyrus contains the primary auditory cortex, which is responsible for processing sounds. It is involved in auditory processing, including language.

Multiple choice

Auditory afferents inside a human ear travel through the midbrain in the

  1. sublenticular portion of the internal capsule

  2. medial lemniscus

  3. medial longitudinal fasciculus

  4. lateral lemniscus

  5. trapezoid body

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The lateral lemniscus is a tract of axons in the brainstem transferring the information about sound from the cochlear nucleus to the contralateral inferior colliculus of the midbrain.

Multiple choice

Afferent activity in the central auditory system involves the following areas. Which among the following lies at fourth position in the sequence?

  1. Cochlear nucleus

  2. Inferior colliculus

  3. Medial geniculate

  4. Superior olivary nucleus

  5. Superior temporal gyrus
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It is a part of the metathalamus consisting of a small oval tubercle situated between the pulvinar, colliculi, and cerebral peduncle. It is fourth in the sequence. All sensory afferents, except olfactory, synapse in the thalamus.

Multiple choice

The lateral vestibular nuclei can be functionally compared with

  1. deep cerebellar nuclei

  2. red nucleus

  3. basal ganglia

  4. bidder's ganglia

  5. thalamus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The lateral vestibular nuclei, although not contained within the cerebellum, are considered to be functionally analogous to the deep cerebellar nuclei because of their functional connectivity with the cerebellum.

Multiple choice

The Broca's area and Wernicke's centre are the association area situated in cerebrum. These are associated with

  1. voluntary action

  2. blind spot

  3. memory

  4. none of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Broca's area (in frontal lobe) controls speech production, while Wernicke's area (temporal lobe) handles language comprehension. Speech production involves voluntary motor control of articulatory muscles. The 'voluntary action' option best fits these language centers.

Multiple choice

Appetite and satiety centres are located in

  1. cerebellum

  2. medulla oblongata

  3. mucosa of stomach

  4. hypothalamus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The hypothalamus contains the hunger (appetite) and satiety centers, which regulate food intake and energy balance.

Multiple choice

In mammals, the thermostat is called as

  1. cerebellum

  2. cerebral lobe

  3. hypothalamus

  4. medulla oblongata
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The hypothalamus acts as the body's thermostat, regulating internal temperature by triggering mechanisms like sweating or shivering to maintain homeostasis.

Multiple choice

Foramen of magendie is found in

  1. medulla oblongata

  2. cerebral cortex

  3. corpus striatum

  4. neuropallium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Foramen of magendie is found in medulla oblongata. It drains cerebrospinal fluid (CSF) from the fourth ventricle into the cisterna magna.

Multiple choice

Cerebrospinal fluid is produced by

  1. Neopallium

  2. Cerebellum

  3. Basal ganglia

  4. Choroid plexus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cerebrospinal fluid is secreted by the choroid plexus, a network of blood vessels located in the ventricles of the brain.