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 general knowledge

The largest part of the human brain is the

  1. Medulla oblongata

  2. Cerebellum

  3. Cerebrum

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The cerebrum is the largest part of the human brain, making up about 85% of its weight, and handles higher functions like thought, memory, language, and sensory processing. The cerebellum coordinates movement, and the medulla controls vital automatic functions like breathing and heart rate.

Multiple choice general knowledge science & technology

The largest part of the human brain is the

  1. Medulla oblongata

  2. Cerebellum

  3. Cerebrum

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The cerebrum is the largest part of the human brain, making up about 85% of the brain's weight. It's responsible for higher cognitive functions like thinking, reasoning, memory, and decision-making. The medulla controls vital autonomic functions, while the cerebellum coordinates movement and balance.

Multiple choice general knowledge science & technology

how many different area of brain and number of muscles involved in laughing.

  1. 3 region of brain, 17 muscles

  2. 2 region of brain, 27 muscles

  3. 5 region of brain, 17 muscles

  4. 1 region of brain, 23 muscles
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Laughing involves multiple brain regions including emotional processing areas and motor control centers, requiring coordination of approximately 15-17 facial muscles. Option C correctly identifies 5 brain regions and 17 muscles as the closest approximation among the choices.

Multiple choice general knowledge science & technology

The left side of your brain controls the right side of your body while the right side of your brain controls the left side of your body.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The brain exhibits contralateral control, meaning the left hemisphere controls the right side of the body and the right hemisphere controls the left side. This occurs because nerve pathways cross over (decussate) in the brainstem, specifically in the medulla oblongata.

Multiple choice

Cutting sensory nerves from the stomach, or removing it entirely, causes

  1. a total loss of appetite

  2. eating based on recognized need, not internal feelings of hunger

  3. some changes in eating, but hunger still occurs

  4. the need for patients to be "trained" to eat, otherwise, they would inadvertently starve to death
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Research shows hunger is regulated by multiple signals (blood glucose, hormones, brain signals), not just stomach nerves. Removing stomach sensory nerves changes eating patterns but doesn't eliminate hunger, demonstrating redundancy in hunger regulation. Option D is exaggerated - patients don't need to be 'trained' to avoid starvation.

Multiple choice

Which among the following areas of the cortex does not receive sensory information directly but via. the primary motor or sensory cortices in the brain?

  1. Hippocampus

  2. Limbic system

  3. Sensory areas

  4. Association areas

  5. Motor areas
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Association areas do not receive sensory information directly, but via the primary motor or sensory cortices in the brain.Thier main function is to produce a meaningful perceptual experience of the world, and enable us to interact effectively, and support abstract thinking and language.  

Multiple choice

The cells responsible for maintaining the blood brain barrier forming a 3-D framework for the central nervous system and including the repair work in damaged neural tissue are ____________.

  1. stem cells

  2. ependymal cells

  3. astrocytes

  4. oligodendrocytes

  5. glial cells
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Astrocytes have many cytoplasmic processes terminating on blood vessels. These cells are engaged in all essential CNS functions including blood flow regulation, maintaining the blood brain barrier, energy metabolism, ion and water homeostasis, immune defence of the body, etc.

Multiple choice

Mr. Verma met with a severe road accident and became very poor in grammar and pronunciation. Which part of her brain must have affected in the accident?

  1. Hypothalamus

  2. Wernicke's area

  3. Broca's area

  4. Pons

  5. Brain stem
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Broca's area is the part of the brain, which is on the front left side of the cortex of the brain and is responsible for not only speech production but also language comprehension, language compression and controls facial neurons.