PHYS 261 (Human Physiology) Week 3
Lab Slide Notes Questions with
Correct Answers
Exteroceptors - ANSWERSSensitive to stimuli in external environment.
Examples of Exteroceptors - ANSWERSInclude:
o Tactile Corpuscles
o Lamellar Corpuscles
o Bulbous Corpuscles
Pain Receptors - ANSWERSFree nerve endings that detect pain and temperature.
Interoreceptors - ANSWERSA.K.A. Visceral receptors.
Interoreceptors - ANSWERSRespond to stimuli within the body.
Proprioceptors - ANSWERSRespond to internal stimuli but restricted to skeletal muscle,
tendons, joints, ligaments, etc.
Refraction - ANSWERS"Light bending"
Accommodation - ANSWERSAbility of the eye to focus on objects that are close and far
away.
Convergence - ANSWERSMedial movement of eyes when focusing on close objects.
Conduction Deafness - ANSWERSOccurs when something prevents sound waves from
reaching the fluids of internal ear.
Conduction Deafness - ANSWERSCaused by compacted earwax, perforated ear drum,
fusion of ossicles, etc.
Sensorineural Deafness - ANSWERSOccurs when damage to the inner ear or nerve
has occurred.
Precentral Gyrus - ANSWERSPrimary motor cortex.
Postcentral Gyrus - ANSWERSPrimary somatosensory cortex.
Fovea - ANSWERSHas the highest concentration of cones.
