Anatomy Exam - Topic 14, Chapter 14 P3/5

Lacrimal Gland

produces tears to moisten, lubricate and protect the eye’s surface

Where do Lacrimal Ducts lead to?

the eye and conjunctiva

Lacrimal Duct

a system of tiny tubes that drain tears from the eye’s surface into the nasal cavity

Conjunctiva

the mucous membrane that covers the front of the eye and lines the inside of the eyelid

Fibrous Tunic

the outermost, protective layer of the eye, consisting of the white, opaque sclera at the back and the transparent cornea at the front

Vascular Tunic

the middle layer of the eye that nourishes eye tissue with blood vessels

Choroid

a thin layer of tissue that is part of the middle layer of the wall of the eye, between the sclera and the retina

Ciliary Body

a circular ring of tissue in the eye, located behind the iris

Iris

the colored part of the eye that controls the pupil

Neural Tunic

innermost layer of the eye, also known as the retina, which contains light-sensitive photoreceptor cells and converts light into electrical signals

Pigmented Epithelium

a single layer of pigmented cells in the eye that support and nourish the photoreceptors in the retina

Rods and Cones

two types of photoreceptor cells in the eye that convert light into neural signals

Rods

dim light, night vision, peripheral vision, extremely sensitive to light, do not see color

Cones

bright light, color vision, less sensitive to light, detects green, red, and blue light