Free General Psychology MCQs with Answers

• A. effectors
• B. receptors
• C. afferent nerves
• D. efferent verves

Explanation: Glands are effectors because they respond to neural or hormonal signals by secreting substances.

• A. receptors
• B. effectors
• C. innervates
• D. affectors

Explanation: Effectors are structures that produce a response, including both muscles, which contract, and glands, which secrete substances.

• A. transposition
• B. transduction
• C. transition
• D. transference

Explanation: Transduction is the conversion of physical energy, such as light, sound, or pressure, into neural signals that the nervous system can…

• A. visual and auditory
• B. auditory and temperature
• C. gustation and olfaction
• D. temperature and pressure

Explanation: Gustation and olfaction are the chemical senses because taste and smell depend on detecting molecules dissolved in saliva or carried in…

• A. testosterone and androgen
• B. progesterone and estrogen
• C. testosterone and estrogen
• D. progesterone and testosterone

Explanation: Estrogen and progesterone are the principal female sex hormones, supporting reproductive development, menstrual regulation, and pregnancy.

• A. hypothalamus
• B. thalamus
• C. Broca's area
• D. fissure of Ronaldo

Explanation: Broca’s area coordinates the motor patterns needed for speech production, including movements of the vocal apparatus.

• A. transducer
• B. medulla
• C. bipolar cells
• D. thalamus

Explanation: The thalamus acts as the brain’s major relay station, directing most incoming sensory information to the appropriate regions of the…

• A. adrenal cortex
• B. pituitary
• C. pancreas
• D. adrenal medulla

Explanation: The adrenal medulla releases epinephrine and norepinephrine during sympathetic arousal, rapidly mobilizing the body in stress.

• A. located in the dorsal column of spinal cord
• B. located in the ventral column of spinal cord
• C. not located in spinal cord
• D. found only in striated muscles

Explanation: Afferent neurons carry sensory information toward the spinal cord and brain, entering through the dorsal side and ascending in…

• A. actomyosin
• B. acetylcholine
• C. acetyl cholinesterase
• D. luteinizing hormone

Explanation: Acetylcholine is a neurotransmitter that can carry a signal across a synapse between neurons.

• A. thalamus
• B. amygdala
• C. reticular activating system
• D. cerebellum

Explanation: The cerebellum fine-tunes balance, coordination, and the smooth timing of movement, so damage can produce jerky and uncoordinated walking.

• A. heart activity
• B. blood pressure
• C. verbal association
• D. muscle movement coordination

Explanation: The cerebellum fine-tunes voluntary muscle actions, helping maintain balance, posture, and smooth coordination.

• A. receptor
• B. effectors
• C. myelin
• D. striated

Explanation: Receptors detect changes such as light, pressure, temperature, or chemicals and convert them into signals for the nervous system.

• A. chimpanzees
• B. humans
• C. elephants
• D. dolphins

Explanation: Humans have the highest encephalization relative to body mass among these choices, reflecting a particularly large brain for their body…

• A. instincts
• B. reuptake
• C. effective
• D. reflexes

Explanation: A reflex is a rapid, automatic sensory-motor response, often mediated through a spinal reflex arc rather than conscious thought.

• A. thyroid gland
• B. parathyroid gland
• C. adrenal gland
• D. pituitary gland

Explanation: Excess growth hormone from an overactive pituitary gland can cause gigantism before growth plates close and acromegaly in adults…

• A. axon, dendrite, soma, vesicle
• B. soma, cell body. Dendrite, vesicle
• C. soma, vesicle, dendrite, axon
• D. dendrite, soma, axon, vesicle

Explanation: Within a neuron, signals are received by dendrites, integrated in the soma, conducted along the axon, and transmitted from axon terminals…

• A. 3 to 200 miles an hour
• B. the speed of light
• C. 600 miles an hour
• D. 200 miles a second

Explanation: Neural impulses travel at variable speeds depending mainly on axon diameter and myelination, ranging roughly from 3 to 200 miles per hour…

• A. cell body
• B. dendrites
• C. axon
• D. terminal endings

Explanation: Dendrites receive incoming signals from other neurons, so they resemble the doorbell button that receives the visitor’s push.

• A. spatial summation
• B. relative refractory periods
• C. absolute refractory periods
• D. excitatory postsynaptic potentials

Explanation: The absolute refractory period briefly prevents a neuron from firing again immediately after an action potential, placing an upper limit…