Neurophysiology Basics - Exam Prep for Competitive Exams

Neurophysiology Basics - Physiology Case Studies

Q. What is the primary effect of the sympathetic nervous system during a stress response?

Solution

The sympathetic nervous system prepares the body for 'fight or flight' by increasing heart rate and blood pressure.

Correct Answer: A — Increased heart rate and blood pressure

Q. What is the primary function of the autonomic nervous system?

Solution

The autonomic nervous system regulates involuntary bodily functions such as heart rate, digestion, and respiratory rate.

Correct Answer: B — To regulate involuntary bodily functions

Q. What is the role of the hypothalamus in the endocrine system?

Solution

The hypothalamus plays a crucial role in regulating body temperature, hunger, and various hormonal functions.

Correct Answer: B — To regulate body temperature and hunger

Q. Which neurotransmitter is primarily involved in the reward pathway of the brain?

Solution

Dopamine is the key neurotransmitter involved in the brain's reward pathway, influencing pleasure and motivation.

Correct Answer: B — Dopamine

Q. Which of the following best describes homeostasis?

A. The ability to maintain a stable internal environment despite external changes
B. The process of cell division and growth
C. The mechanism of neurotransmitter release
D. The regulation of blood flow during exercise

Solution

Homeostasis is the ability of an organism to maintain a stable internal environment despite changes in external conditions.

Correct Answer: A — The ability to maintain a stable internal environment despite external changes

Q. Which part of the neuron is primarily responsible for receiving signals from other neurons?

Solution

Dendrites are the extensions of a neuron that receive signals from other neurons.

Correct Answer: B — Dendrites

Q. Which structure in the brain is primarily responsible for coordinating voluntary movements?

Solution

The cerebellum is responsible for coordinating voluntary movements and maintaining balance and posture.

Correct Answer: B — Cerebellum

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