Lecture 6 : Eye and Ear Flashcards
1
Q
Lacrimal Apparatus
A
Tears: contain mucus, antibodies and lysozyme, drains into the nasolacrimal duct
2
Q
Lateral rectus
A
moves eyes laterally CN VI
3
Q
medial rectus
A
moves eyes medially CN III
4
Q
superior rectus
A
elevates eye and turns in medially CN III
5
Q
inferior rectus
A
depresses eye and turns it medially CN III
6
Q
inferior oblique
A
Elevates eye and turns it laterally CN III
7
Q
superior oblique
A
Depresses eye and turns it laterally CN IV
8
Q
Fibrous Tunic
A
-sclera and cornea
9
Q
Vascular tunic
A
- choroid- pigment allows light to be attracted to the back of the eye
-ciliary body - Iris- made of smooth muscle
Constriction : you would constrict under parasympathetic function
Dilation : would be sympathetic
10
Q
Lens
A
a biconvex, transparent, flexible , avascular structure that allows precise focusing of light onto the retina.
11
Q
macula lutea
A
highest concentration of photo receptors
12
Q
optic disc
A
no light receptors - blind spot
