Chapter Questions
These receptors detect stimuli within the body:a. interoceptors.b. exteroceptors.c. homeoreceptors.d. reflex receptors.
A receptor that detects changes in $\mathrm{pH}$, or specific molecules in the environment, would be classified as aa. mechanoreceptor.b. photoreceptorc. chemoreceptor.d. thermoreceptor.e. None of these are correct.
Where does the process of sensation occur in the body?a. at the sensory receptorb. in the spinal cordc. within the synapses between neurons of the PNSd. in the cerebral cortexe. All of these are correct.
Which type of receptor detects the chemicals released by damaged tissues?a. nociceptorsb. proprioceptorsc. Meissner corpusclesd. Ruffini endingse. None of these are correct.
Which of the following types of receptors assists in the maintenance of muscle tone?a. nociceptorsb. proprioceptorsc. Pacinian corpusclesd. Krause end bulbse. All of these are correct.
The senses of taste and smell rely primarily on what type of receptors?a. mechanoreceptorsb. nociceptorsc. protoreceptorsd. proprioceptorse. chemorecentor
Olfactory bulbs are locateda. on the tongue.b. in the nasal cavity.c. in the brain stem.d. in the aorta.e. None of these are correct.
Label this diagram of a human eye.
Which structure of the eye is incorrectly matched with its function?a. lens-focusingb. cones - color visionc. iris -regulation of amount of lightd. choroid-location of conese. sclera-protection
Adjustment of the lens to focus on objects close to the viewer is calleda. convergence.b. visual accommodation.c. focusing.d. constriction.
To focus on objects that are close to the viewer, thea. suspensory ligaments must be pulled tight.b. lens needs to become more rounded.c. ciliary muscle will be relaxed.d. image must focus on the area of the optic nerve.
Label this diagram of a human ear.
Which of the following is not involved in the sense of hearing?a. auditory canalb. tympanic membranec. ossiclesd. semicircular canalse. cochlea
Which one of these correctly describes the location of the spiral organ?a. between the tympanic membrane and the oval window in the inner earb. in the utricle and saccule within the vestibulec. between the tectorial membrane and the basilar membrane in the cochlear canald. between the nasal cavities and the throate. between the outer and inner ear within the semicircular canals
Which of the following structures would allow you to know that you were upside down, even if you were in total darkness?a. utricle and sacculeb. cochleac. semicircular canalsd. tectorial membrane
Moving your head forward would be detected by which of the following structures?a. the semicircular canalsb. the utricle and sacculec. the cochlead. the auditory canal.e. None of these are correct.