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 theory suggesting emotion is felt after physiological changes is the
A) Cannon-Bard theory
B) Two-factor theory
C) James-Lange theory
D) Schachter-Singer theory
✅ Correct Answer: C
Explanation: The James-Lange theory states that emotion follows bodily reactions.
Q: A stimulus that increases the likelihood of a behavior recurring is a
A) Punishment
B) Reinforcer
C) Conditioned response
D) Unconditioned stimulus
✅ Correct Answer: B
Explanation: A reinforcer strengthens the behavior it follows.
Q: Damage to Broca's area affects
A) Balance
B) Sight
C) Speech production
D) Reflexes
✅ Correct Answer: C
Explanation: Broca’s area is involved in speech formation; damage leads to expressive aphasia.
Q: The tendency to search for evidence confirming existing beliefs is
A) Bias blind spot
B) Confirmation bias
C) Availability heuristic
D) Representativeness heuristic
✅ Correct Answer: B
Explanation: Confirmation bias is the tendency to favor information that aligns with one's preconceptions.
Q: A mental shortcut used for problem-solving is called a
A) Heuristic
B) Algorithm
C) Insight
D) Schema
✅ Correct Answer: A
Explanation: Heuristics are quick, often efficient strategies, though not always accurate.
Q: The part of the brain essential for forming new memories is the
A) Amygdala
B) Hypothalamus
C) Hippocampus
D) Medulla
✅ Correct Answer: C
Explanation: The hippocampus is critical for converting short-term memory into long-term memory.
Q: Children develop object permanence during the
A) Preoperational stage
B) Sensorimotor stage
C) Concrete operational stage
D) Formal operational stage
✅ Correct Answer: B
Explanation: According to Piaget, object permanence emerges in the sensorimotor stage.
Q: Behavior followed by a pleasant outcome is more likely to recur, according to
A) Skinner's law
B) Law of frequency
C) Law of recency
D) Law of effect
✅ Correct Answer: D
Explanation: Thorndike's law of effect states that rewarded behavior is likely to be repeated.
Q: Motivation based on internal rewards is known as
A) Intrinsic motivation
B) Extrinsic motivation
C) Primary drive
D) Fixed motivation
✅ Correct Answer: A
Explanation: Intrinsic motivation stems from personal satisfaction rather than external rewards.
Q: The personality trait involving sociability and assertiveness is
A) Neuroticism
B) Openness
C) Agreeableness
D) Extraversion
✅ Correct Answer: D
Explanation: Extraversion includes characteristics such as outgoingness and enthusiasm.