All Free Psychology MCQs with Answers
Every Psychology question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
3,519 questions · page 113 of 176
- 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…
Correct answer: thalamus- 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.
Correct answer: adrenal medulla- 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…
Correct answer: located in the dorsal column of spinal cord- 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.
Correct answer: acetylcholine- 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.
Correct answer: cerebellum- 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.
Correct answer: muscle movement 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.
Correct answer: receptor- 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…
Correct answer: humans- 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.
Correct answer: reflexes- 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…
Correct answer: pituitary gland2251. What describes the correct sequence of electrical activity as it passes through a single nerve cell?
- 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…
Correct answer: dendrite, soma, axon, vesicle- 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…
Correct answer: 3 to 200 miles an 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.
Correct answer: dendrites- 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…
Correct answer: absolute refractory periods- A. parasympathetic system
- B. limbic system
- C. sympathetic system
- D. sensory neurons
Explanation: The limbic system is a collection of brain structures within the central nervous system, not a division of the peripheral nervous system.
Correct answer: limbic system- A. cerebral cortex
- B. amygdala
- C. corpus collosum
- D. hypothalamus
Explanation: The hypothalamus regulates basic motivated behaviors such as eating, drinking, and sexual activity while also helping control hormones and…
Correct answer: hypothalamus- A. temporal lobes
- B. occipital lobes
- C. parietal lobes
- D. frontal lobesTry Prep Courses
Explanation: The occipital lobes are located at the back of the brain and process visual information.
Correct answer: occipital lobes- A. right hemisphere
- B. limbic system
- C. visual cortex
- D. left hemisphere
Explanation: In most right-handed people, language functions are dominant in the left hemisphere, including Broca’s area, which supports speech…
Correct answer: left hemisphere- A. stimulus constancy
- B. absolute threshold retention
- C. nondecremental property
- D. all-or-none propertyGet Study Guides
Explanation: The nondecremental property means that an action potential is regenerated along the axon and therefore does not weaken as it travels.
Correct answer: nondecremental property- A. pituitary
- B. adrenal
- C. thyroid
- D. parathyroidTake Psychology Courses
Explanation: The pituitary is often called the master gland because it releases hormones that regulate growth and influence several other endocrine…
Correct answer: pituitary