NEET Human Physiology 1

Question 1

What is the normal pH of human blood?

Accepted Answer

7.35–7.45

Answer

Normal human blood pH ranges from 7.35 to 7.45; deviations cause acidosis or alkalosis, disrupting metabolic processes.

Question 2

Which part of the brain regulates body temperature, hunger, and thirst?

Accepted Answer

Hypothalamus

Answer

The hypothalamus is the master regulator of homeostasis, controlling body temperature, hunger, thirst, and circadian rhythms.

Question 3

How many chambers does the human heart have?

Accepted Answer

4

Answer

The human heart has four chambers: two upper atria (left and right) and two lower ventricles (left and right).

Question 4

Which part of the neuron transmits nerve impulses away from the cell body?

Accepted Answer

Axon

Answer

The axon carries nerve impulses (action potentials) away from the neuron's cell body toward the axon terminals.

Question 5

What is the approximate total lung capacity in a healthy adult?

Accepted Answer

6 liters

Answer

The total lung capacity of a healthy adult is approximately 6 liters, consisting of tidal volume, reserve volumes, and residual volume.

NEET - National Eligibility cum Entrance Test Practice Test