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27 Cards in this Set

  • Front
  • Back
Sense organs that monitor muscle contractions and joint movements are called __.
proprioreceptors
Of the two types of pain, which is transmitted by myelinated nerve fibers?
fast pain
All the organs that produce tears and drain them from the eye are collectively called the __ apparatus.
lacrimal apparatus
The space between the cornea and lens of the eye is filled with fluid called __.
aqueous humor
Rod cells are lacking from an area of the retina called the __, and cone cells are smallest and most closely spaced there.
macula-fovea centralis
Location where some optic nerve fibers from each eye cross over to the opposite side of the brain.
optic chiasma
Receptor cells for daylight and color vision.
cones
Endogenous peptide with powerful analgesic effects.
enkephalin
T/F
In vision, the cornea plays a greater role in refracting and focusing light than the lens does.
true
T/F
The posterior chamber of the eye is filled with vitreous humor.
false
T/F
Substance P blocks the transmission of pain signals from peripheral nerves to the brain.
False
The ear is classified as a:
Mechanoreceptor
The sensation of pain results partly from the stimulation of pain recepters by:
bradykinin
Eye movements are controlled by extinsic muscles, including all of the following except:
superior rectus
superior oblique
inferior rectus
lateral rectus
lateral oblique
lateral oblique
The vascular layer of the eye includes all of the following except:
the cornea
the iris
the choroid
chromatophores
the ciliary body
The cornea
Enkephalin blocks the release of __ by afferent nerve endings in the spinal cord.
Substance P
The __ admits air to the middle-ear cavity to equalize pressure on both sides of the tympanic membrane:
Auditory tube
Term: noci-
pain
Term: alges-
pain
Term: fovea
Pit
Term: -phore
bearer
What is the consensual reflex of the pupil?
Dilate
What layer of the eye converts visible light into nerve impulses?
Retna
What gland produces tears?
Lacrimal gland
What is the name of the transparent layer of the eye in front of the anterior chamber?
Cornea
The iris of the eye has what function?
Eye color
What is the middle tunic of the eye called?
Tunca vasculosa