WGU D312
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
,Certainly! Here are all the questions numbered along with their answers:
1. **What is olfactory transduction?**
Conversion of chemical molecules in the air into neural impulses by the olfactory cilia.
2. **What is local depolarization?**
A locally generated depolarization that causes an action potential.
3. **What is adaptation in olfaction?**
The olfactory epithelium's sensitivity to smells over time.
4. **What is odor threshold?**
The lowest concentration of a certain odor compound that is perceivable by the human
sense of smell.
5. **In addition to tunicae, each eye consists of...**
Optical and neural structures.
6. **What are the 3 layers constructing the wall of the eye?**
Fibrous, vascular, and neural layer.
7. **What is the fibrous tunica?**
Outer coat of the eye.
8. **What is the vascular tunica?**
Pigmented, vascular coat of the eye.
9. **What is the purpose of the blood and lymphatic vessels of the Choroid?**
, Drain excess fluid from the posterior cavity.
10. **What are the ciliary arteries?**
Arterial supply to the choroid.
11. **What is the ciliary body?**
The anterior portion of the choroid that sits behind the iris, forming a ring around the
lens.
12. **What is the composition of the ciliary body?**
Smooth muscle.
13. **What do suspensory ligaments project from and attach to?**
Project from the ciliary body and attach to the lens.
14. **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.
15. **What does the iris contain?**
Two rings of muscles: pupillary constrictor muscles and pupillary dilator muscles.
16. **Function of the Iris?**
Change the diameter of the pupil (the aperture).
17. **What is the lens?**
A curved structure that bends and focuses light onto the retina for clear image formation.
, 18. **What is the neural tunica?**
The innermost, neural layer of the eye.
19. **What does the retina attach to?**
The optic disc and the ora serrata.
20. **What does the retina contain?**
Photoreceptors, associated neurons, and fibers.
21. **What is the macula lutea?**
The area of the retina that provides the clearest vision; contains only cone
photoreceptors.
22. **What is the fovea centralis?**
The area of the retina where vision is most accurate.
23. **What is the optic disc or blind spot?**
The point where ganglion cells leave the retina to form the optic nerve; no
photoreceptors.
24. **What is the optic nerve (Cranial Nerve II)?**
Nerve that carries impulses for the sense of sight.
25. **What is the optic chiasm?**
The crossing point where optic nerves cross.
26. **What are the optical structures?**
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
,Certainly! Here are all the questions numbered along with their answers:
1. **What is olfactory transduction?**
Conversion of chemical molecules in the air into neural impulses by the olfactory cilia.
2. **What is local depolarization?**
A locally generated depolarization that causes an action potential.
3. **What is adaptation in olfaction?**
The olfactory epithelium's sensitivity to smells over time.
4. **What is odor threshold?**
The lowest concentration of a certain odor compound that is perceivable by the human
sense of smell.
5. **In addition to tunicae, each eye consists of...**
Optical and neural structures.
6. **What are the 3 layers constructing the wall of the eye?**
Fibrous, vascular, and neural layer.
7. **What is the fibrous tunica?**
Outer coat of the eye.
8. **What is the vascular tunica?**
Pigmented, vascular coat of the eye.
9. **What is the purpose of the blood and lymphatic vessels of the Choroid?**
, Drain excess fluid from the posterior cavity.
10. **What are the ciliary arteries?**
Arterial supply to the choroid.
11. **What is the ciliary body?**
The anterior portion of the choroid that sits behind the iris, forming a ring around the
lens.
12. **What is the composition of the ciliary body?**
Smooth muscle.
13. **What do suspensory ligaments project from and attach to?**
Project from the ciliary body and attach to the lens.
14. **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.
15. **What does the iris contain?**
Two rings of muscles: pupillary constrictor muscles and pupillary dilator muscles.
16. **Function of the Iris?**
Change the diameter of the pupil (the aperture).
17. **What is the lens?**
A curved structure that bends and focuses light onto the retina for clear image formation.
, 18. **What is the neural tunica?**
The innermost, neural layer of the eye.
19. **What does the retina attach to?**
The optic disc and the ora serrata.
20. **What does the retina contain?**
Photoreceptors, associated neurons, and fibers.
21. **What is the macula lutea?**
The area of the retina that provides the clearest vision; contains only cone
photoreceptors.
22. **What is the fovea centralis?**
The area of the retina where vision is most accurate.
23. **What is the optic disc or blind spot?**
The point where ganglion cells leave the retina to form the optic nerve; no
photoreceptors.
24. **What is the optic nerve (Cranial Nerve II)?**
Nerve that carries impulses for the sense of sight.
25. **What is the optic chiasm?**
The crossing point where optic nerves cross.
26. **What are the optical structures?**
