Most somesthetic signals in the right side of the body reach the cortex in the ___ primary somesthetic area.
A) all of these
B) right and left
C) ipsilateral
D) contralateral
D
The ___ rests upon the stereocilia of hair cells
A) basilar membrane
B) macula
C) tectorial membrane
D) cupula
C
olfactory cells synapse in olfactory bulb on dendrites of ___.
A) granule cells
B) basal cells
C) mitral and tufted cells
D) ganglion cells
C
crista ampullaris detects ___
A) rotary movement
B) dynamic equilibrium
C) all of these
D) static equilibrium
A
___ is the conversion of one form of energy to another.
A) excitation
B) sensation
C) transduction
D) modality
C
Which of these is not part of the middle ear?
A) tympanic membrane
B) stapes
C) cochlea organ
D) malleus
C
___ is the dense, collagenous white of the eye and ___ is the transparent area of eye that admits light.
A) cornea...retina
B) cornea...sclera
C) lens...conjuctiva
D) sclera...cornea
D
When you view objects close to the eye, the eye makes an adjustment called
A) refraction
B) acommodation
C) emmetropia
D) myopia
B
Which of these organs does NOT have nociceptors?
A) kidney
B) stomach
C) brain
D) liver
C
The initial effect of a stimulus on a sensory receptor is a local electrical change specifically called a/an ___
A) action potential
B) receptor potential
C) sensory potential
D) local potential
B
___ are not actually neurons. they are epithelial cells
A) olfactory cells
B) tufted cells
C) taste cells
D) mitral cells
C
which of these nerve cells is not encapsulated?
A) lamellated corpuscles
B) tactile disc
C) krause end bulb
D) tactile
B
which structure allows upper respiratory infections to spread from the throat to the tympanic cavity?
A) the cochlear duct
B) the auditory canal
C) the auditory (eustachian) tube
D) the oval window
C
where do most second-order somesthetic neurons synapse with third-order neurons?
A) thalamus
B) cerebellum
C) postcentral gyrus
D) midbrain
A
You can smell the fragrance of your deodorant when you just put it on, but after a little while the smell fades. What explains this phenomenon?
A) the sensory projection of the sense of smell
B) the phasic nature of the sense of smell
C) the projection pathway of the sense of smell
D) the fast adaptation of the primary olfactory cortex to the smell of your deodorant.
B
These structures are all involved with spinal gating of pain signals except:
a) Nociceptors.
b) The spinothalamic tract.
c) Lower
motor neurons.
d) Second-order neurons.
e) The
reticulospinal tract.
C