Where does perception occur?
- spinal cord
- cerebral cortex
If a person’s cold receptors no longer convert cold stimuli into sensory signals, that person has a problem with the process of ________.
After somatosensory transduction, the sensory signal travels through the brain as a(n) _____ signal.
_____ are found only in _____ skin, and detect skin deflection.
- Meissner’s corpuscles: hairy
- Merkel’s disks: glabrous
- hair receptors: hairy
- Krause end bulbs: hairy
If you were to burn your epidermis, what receptor type would you most likely burn?
- free nerve endings
- Ruffini endings
- Pacinian corpuscle
- hair receptors
Which of the following has the fewest taste receptors?
- fungiform papillae
- circumvallate papillae
- foliate papillae
- filiform papillae
How many different taste molecules do taste cells each detect?
- It depends on the spot on the tongue
Salty foods activate the taste cells by _____.
- exciting the taste cell directly
- causing hydrogen ions to enter the cell
- causing sodium channels to close
- binding directly to the receptors
All sensory signals except _____ travel to the _____ in the brain before the cerebral cortex.
- vision; thalamus
- olfaction; thalamus
- vision; cranial nerves
- olfaction; cranial nerves
In sound, pitch is measured in _____, and volume is measured in _____.
- nanometers (nm); decibels (dB)
- decibels (dB); nanometers (nm)
- decibels (dB); hertz (Hz)
- hertz (Hz); decibels (dB)
Auditory hair cells are indirectly anchored to the _____.
- basilar membrane
- oval window
- tectorial membrane
Which of the following are found both in the auditory system and the vestibular system?
- basilar membrane
- hair cells
- semicircular canals
Why do people over 55 often need reading glasses?
- Their cornea no longer focuses correctly.
- Their lens no longer focuses correctly.
- Their eyeball has elongated with age, causing images to focus in front of their retina.
- Their retina has thinned with age, making vision more difficult.
Why is it easier to see images at night using peripheral, rather than the central, vision?
- Cones are denser in the periphery of the retina.
- Bipolar cells are denser in the periphery of the retina.
- Rods are denser in the periphery of the retina.
- The optic nerve exits at the periphery of the retina.
A person catching a ball must coordinate her head and eyes. What part of the brain is helping to do this?
- pineal gland
- superior colliculus