MED 116 CH10 Flashcards
A decreased sensitivity to continued stimulus is know as
Sensory adaptation
All of the following are characteristics of cones except
Are much more numerous than rods
All of the following are examples of general senses except
vision
All of the following are examples of nociceptors except
They exhibit sensory adaptation
All of the following are functions of tears except
Prevent foreign objects from entering the eye
All of the following are taste sensations except
Pungent
How do the number of cold receptors compare with the number of heat receptors?
Up to 10x more cold receptors in a given area
Receptors for hearing are
Mechanoreceptors
The bending of light rays so that they can be focused on the retina is known as
refraction
The sense of position or orientation is know as
Proprioception
What are the mechanoreceptors involved with proprioception?
Golgi tendon organs
What are the organs of taste?
tastebuds
What area of the brain interprets smell sensations?
Olfactory cortex
What happens several minutes after a heating pad has been applied to an individual’s skin?
It no longer feels warm
What is the name of the white spot in the eye where the optic nerve leaves the eye?
optic disk
What is the range of frequencies for normal speech?
300-400 vibrations per second
What region of the retina produces the sharpest image?
fovea centralis
What stimulates a nociceptor?
tissue damage
What stimulates the receptors that determine taste?
Chemicals in food
What type of receptors do extreme temperatures stimulate?
pain receptors
Where are thermoreceptors located?
Immediately under the skin
Where are thermoreceptors most numerous?
lips
Which of the following allows the eye to adapt to dim light?
rhodosin
Which of the following equalizes the pressure between the outside and the middle ear?
eustachian tube
