Perception in ANP1106v UPDATED
ACTUAL Questions and CORRECT
Answers
What is sensation? - CORRECT ANSWER - Awareness of changes in the internal and external
environment.
What is perception? - CORRECT ANSWER - Conscious interpretation of sensory stimuli by the
cerebral cortex.
What are sensory receptors? - CORRECT ANSWER - Structures specialized to respond to stimuli
and convert them into neural signals.
Define signal transduction. - CORRECT ANSWER - The process of converting an environmental
stimulus into a neuronal electrochemical signal.
What are generator potentials? - CORRECT ANSWER - Graded depolarizations that occur in
response to stimuli at sensory receptors.
What are receptor potentials? - CORRECT ANSWER - Changes in the membrane potential of
sensory receptors that lead to action potentials.
What is adaptation in sensory receptors? - CORRECT ANSWER - The decrease in sensitivity to a
constant stimulus over time.
Differentiate between phasic and tonic receptors. - CORRECT ANSWER - Phasic receptors adapt
quickly to a stimulus, while tonic receptors maintain their response over time.
, What are tactile receptors? - CORRECT ANSWER - Sensory receptors that respond to touch and
pressure.
What are thermoreceptors? - CORRECT ANSWER - Sensory receptors that detect changes in
temperature.
What are nociceptors? - CORRECT ANSWER - Sensory receptors that respond to potentially
damaging stimuli, signaling pain.
What is referred pain? - CORRECT ANSWER - Pain perceived at a location other than the site of
the painful stimulus.
What are proprioceptors? - CORRECT ANSWER - Sensory receptors that provide information
about body position and movement.
What is the role of the peripheral nervous system (PNS)? - CORRECT ANSWER - To connect the
CNS to the external environment and process sensory input.
What are the two divisions of the PNS? - CORRECT ANSWER - Sensory input division and motor
output division.
What is the function of encapsulated nerve endings? - CORRECT ANSWER - To enhance
sensitivity and specificity of sensory receptors.
What is the structure of a peripheral nerve? - CORRECT ANSWER - Composed of axons,
endoneurium, perineurium, and epineurium.
What is the regeneration pathway in peripheral nerves? - CORRECT ANSWER - Sheaths provide
channels for axon regrowth after injury.