7/24/26, 12:24 PM WGU D312 Flashcards | Quizlet
Western Governors University D 312
WGU D312
9 studiers in 3 days Leave the first rating
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Flashcard sets Study guides
WGU Pathophysiology D236 Destiny's List D311 D311: WGU Microbiology with Lab: P... WGU D
150 terms 82 terms 54 terms 387 term
rolson4volstate Preview watsonkaylam12 Preview trinn4695 Preview rmc
Terms in this set (510)
olfactory transduction conversion of chemical molecules in the air into neural impulses by the olfactory
cilia
local depolarization a locally generated depolarization that causes an action potential
adaptation the olfactory epithelium's sensitivity to smells over time
odor threshold lowest concentration of a certain odor compound that is perceivable by the
human sense of smell
In addition to tunicae, each eye consists of... optical and neural structures.
tunicae Layers of the eye; there are 3
What are the 3 layers constructing the wall of the eye? fibrous, vascular, and neural layer
fibrous tunica fibrous, outer coat
vascular tunica pigmented, vascular coat
What is the purpose of the blood and lymphatic vessels drain excess fluid from the posterior cavity
of the Choroid?
ciliary arteries Arterial supply to the choroid
Ciliary body the anterior portion of the choroid that sits behind the Iris, forming a ring around
the Lens.
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, 7/24/26, 12:24 PM WGU D312 Flashcards | Quizlet
The Ciliary body is composed of... smooth muscle
Suspensory ligaments project from the ciliary body and the lens
attach it to
Functions of the Ciliary Body. 1) support the iris and lens,
2) adjust curvature of the lens
3) secrete aqueous humor into the posterior chamber
The iris contains two rings of muscles the pupillary constrictor muscles and the pupillary dilator muscles.
Function of the Iris Change diameter of the aperture of the pupil
The lens a curved structure in the eye that bends and focuses lightfor the retina to see
images clearly
Neural Tunica the innermost, neural layer.
The retina is attached to... the optic disc and the ora serrata
the Retina contains... photoreceptors and associated neurons and fibers.
macula lutea the area of the retina that provides the clearest vision; contains only cone
photoreceptors
fovea centralis the area of the retina where vision is most accurate.
optic disc or blind spot the point from which ganglion cells from the retina leave the back of the eye to
form the optic nerve; no photoreceptors
Optic Nerve (Cranial Nerve II) Nerve that carries impulses for sense of sight.
optic chiasm where optic nerves cross
optical structures Admit and refract light and focus images
-cornea
-pupil
-lens
-aqueous humor( anterior cavity b/w cornea + lens)
- vitreous humor (posterior cavity b/w lens+ retina)
https://quizlet.com/892588936/wgu-d312-flash-cards/ 2/8
Western Governors University D 312
WGU D312
9 studiers in 3 days Leave the first rating
Students also studied
Flashcard sets Study guides
WGU Pathophysiology D236 Destiny's List D311 D311: WGU Microbiology with Lab: P... WGU D
150 terms 82 terms 54 terms 387 term
rolson4volstate Preview watsonkaylam12 Preview trinn4695 Preview rmc
Terms in this set (510)
olfactory transduction conversion of chemical molecules in the air into neural impulses by the olfactory
cilia
local depolarization a locally generated depolarization that causes an action potential
adaptation the olfactory epithelium's sensitivity to smells over time
odor threshold lowest concentration of a certain odor compound that is perceivable by the
human sense of smell
In addition to tunicae, each eye consists of... optical and neural structures.
tunicae Layers of the eye; there are 3
What are the 3 layers constructing the wall of the eye? fibrous, vascular, and neural layer
fibrous tunica fibrous, outer coat
vascular tunica pigmented, vascular coat
What is the purpose of the blood and lymphatic vessels drain excess fluid from the posterior cavity
of the Choroid?
ciliary arteries Arterial supply to the choroid
Ciliary body the anterior portion of the choroid that sits behind the Iris, forming a ring around
the Lens.
https://quizlet.com/892588936/wgu-d312-flash-cards/ 1/8
, 7/24/26, 12:24 PM WGU D312 Flashcards | Quizlet
The Ciliary body is composed of... smooth muscle
Suspensory ligaments project from the ciliary body and the lens
attach it to
Functions of the Ciliary Body. 1) support the iris and lens,
2) adjust curvature of the lens
3) secrete aqueous humor into the posterior chamber
The iris contains two rings of muscles the pupillary constrictor muscles and the pupillary dilator muscles.
Function of the Iris Change diameter of the aperture of the pupil
The lens a curved structure in the eye that bends and focuses lightfor the retina to see
images clearly
Neural Tunica the innermost, neural layer.
The retina is attached to... the optic disc and the ora serrata
the Retina contains... photoreceptors and associated neurons and fibers.
macula lutea the area of the retina that provides the clearest vision; contains only cone
photoreceptors
fovea centralis the area of the retina where vision is most accurate.
optic disc or blind spot the point from which ganglion cells from the retina leave the back of the eye to
form the optic nerve; no photoreceptors
Optic Nerve (Cranial Nerve II) Nerve that carries impulses for sense of sight.
optic chiasm where optic nerves cross
optical structures Admit and refract light and focus images
-cornea
-pupil
-lens
-aqueous humor( anterior cavity b/w cornea + lens)
- vitreous humor (posterior cavity b/w lens+ retina)
https://quizlet.com/892588936/wgu-d312-flash-cards/ 2/8
