BSC2086 Lab lesson 1 Flashcards
Medial and Lateral Commissure
medial and lateral junctions of upper and lower eyelids
What is the Lacrimal caruncle?
Produces oily secretion
- located on the medial commissure
what is the Conjunctiva?
Inner surface of eyelid; secretes mucus
what makes up the Lacrimal apparatus?
1.) Lacrimal glands
2.) Lacrimal canaliculus
3.) Lacrimal sac
4.) Nasolacrimal duct
What is the Ciliary glands?
modified sweat glands found between eyelashes; produces oily secretion, lubricates eye.
What is the Tarsal gland?
sebaceous glands posterior to eyelashes; produces oily secretion, lubricated eye. b
what are the extrinsic eye muscles?
- Superior rectus
- Inferior rectus
- Medial rectus
- Inferior rectus
- Superior oblique
- Inferior oblique
What are the three internal layer of the eye?
- Fibrous layer= outer connective tissue layer
- Vascular layer (uvea)= middle layer
- Sensory layer= innermost layer
what does the Fibrous layer consist of?
- Sclera= white of the eye
- Cornea= transparent anterior structure for light entry
What does the vascular layer consist of (uvea)?
- Iris= most anterior part
- Ciliary body= found anteriorly; made of ciliary muscles (controls lens shape) and ciliary processes (secretes aqueous humor).
- Choroid= found posteriorly; blood-rich nutritive layer containing dark pigments preventing light scattering.