24. The following neurons form horizontal bonds within the retinal layers:
(1) Muller cells (2) horizontal cells (3) bipolar cells (4) amacrine cells
25. The retinal layer of rods and cones consists of:
(1) photoreceptor dendrites (2) cell bodies of rods and cones (3) pigmented epithelium
processes (4) axons of rods and cones
26. The retinal outer plexiform layer contains:
(1) photoreceptor axons (2) bipolar cell dendrites (3) horizontal cell processes (4) the first
synapse of the optic tract
27. The retinal inner plexiform layer contains:
(1) bipolar cell axons (2) ganglion cell dendrites (3) the second synapse of the optic tract
(4) amacrine cell processes
28. The following statements regarding the optic disk are true:
(1) lacks rods and cones (2) the optic nerve leaves the eye here (3) lacks visual activity (4)
contains only two retinal layers
29. The following statements regarding the fovea centralis are true:
(1) is a depression on the posterior retinal wall (2) contains only cones (3) is a region of
the greatest visual activity (4) the optic nerve leaves the eye here
30. The olfactory epithelium consists of the following cells:
(1) olfactory cells (2) basal cells (3) supporting cells (4) glial cells
31. The following statements regarding the olfactory reception are true:
(1) olfactory cilia contain chemoreceptors (2) odoriferous substances dissolve in the
olfactory gland secretion (3) interaction between the olfactory molecules and receptors
causes the cell membrane depolarization (4) after interaction molecules are carried away
by olfactory gland secretion to prepare receptors for new stimuli
10. SECONDARY SENTIENT SENSE ORGANS
Directions
: each of the following statements contains five suggested completions. Choose
the one that is best in each case.
1. Each of the following statements concerning the cochlea is true, EXCEPT:
A
– is formed by a spiral bony tube; B – contains the osseous core, modiolus; C – consists
of the saccule and utricle; D
– houses the cochlear duct; E – contains the spiral organ of
Corti.
2. The spiral ganglion is located in:
A
– scala media; B – spiral lamina of the modiolus; C – scala vestibuli; D – tunnel; E –
scala tympani.
3. The sensory neurons of the organ of hearing are located in:
A
– stria vascularis; B – spiral ligament; C – tunnel; D – spiral ganglion; E – spiral organ.
4. Each of the following statements concerning the basilar membrane is true,
EXCEPT:
A
– separates the scala media and the scala vestibuli; B – consists of a thick layer of
amorphous material; C
– contains keratin-like fibrils; D – the spiral organ is located on its
upper surface; E
– separates the scala media and the scala tympani.
5. Each of the following statements concerning the stria vascularis is true, EXCEPT:
A
– secrets endolymph; B – rests on the spiral ligament; C – consists of the
psuedostratified epithelium; D
– is vascularized by capillaries; E – is a thickened
periosteum of the spiral lamina.
6. The following cells of the spiral organ enclose the tunnel of Corti:
A
– outer hair cells; B – outer phalangeal cells; C – pillar cells; D – inner hair cells; E –
inner phalangeal cells.