Physiology MCQs

Physiology MCQs help medical and dental students master body functions across cardiovascular, respiratory, renal, digestive, endocrine, and neurophysiology systems. Ideal for MDCAT, NTS, USMLE, and FCPS, these quizzes boost retention and exam success.

Q: The wave of depolarization in the heart spreads from the atria to the ventricles via the
A) Purkinje fibers
B) AV node
C) SA node
D) Mitral valve
✅ Correct Answer: B
Explanation: The AV node delays and then transmits impulses to the ventricles.
Q: The father of psychoanalysis is
A) Carl Jung
B) Sigmund Freud
C) Ivan Pavlov
D) B.F. Skinner
✅ Correct Answer: B
Explanation: Sigmund Freud developed psychoanalysis, a method for treating mental illness.
Q: Behavior is shaped by consequences according to
A) Cognitive theory
B) Psychodynamic theory
C) Operant conditioning
D) Humanistic theory
✅ Correct Answer: C
Explanation: Operant conditioning by B.F. Skinner emphasizes rewards and punishments.
Q: The term IQ was first used by
A) William Stern
B) Alfred Binet
C) Charles Spearman
D) Carl Rogers
✅ Correct Answer: A
Explanation: William Stern introduced the concept of Intelligence Quotient (IQ).
Q: Personality is made up of id, ego, and superego according to
A) Abraham Maslow
B) Erik Erikson
C) Sigmund Freud
D) Jean Piaget
✅ Correct Answer: C
Explanation: Freud's structural model of personality includes id, ego, and superego.
Q: Short-term memory can typically hold
A) 3–5 items
B) 5–9 items
C) 9–11 items
D) 1–3 items
✅ Correct Answer: B
Explanation: George Miller suggested short-term memory holds 5 to 9 chunks of information.
Q: The psychological school that emphasizes free will is
A) Behaviorism
B) Functionalism
C) Structuralism
D) Humanism
✅ Correct Answer: D
Explanation: Humanism focuses on individual potential and personal growth.
Q: Learning by observing others is called
A) Classical conditioning
B) Observational learning
C) Insight learning
D) Operant conditioning
✅ Correct Answer: B
Explanation: Observational learning involves imitating behaviors seen in others.
Q: Jean Piaget is known for his theory on
A) Emotions
B) Memory
C) Cognitive development
D) Personality types
✅ Correct Answer: C
Explanation: Piaget developed a theory explaining how children develop intellectually.
Q: Maslow's highest need in the hierarchy is
A) Safety
B) Belonging
C) Esteem
D) Self-actualization
✅ Correct Answer: D
Explanation: Self-actualization represents fulfilling one’s potential, the top of Maslow’s hierarchy.