Eyes And Ears Flashcards
Special sense
Equilibrium ,taste, smell, sight and hearing
General senses
Touch
Extraocular structures
Supportive structures outside eye
Palpebra
Conjunctiva
Lacrimal apparatus
Extrinsic eye muscle
Intra ocular structures
Structures within eye
Fibrous layer- sclera, cornea
Vascular layer- choroid, ciliary body, iris and pupil
Inner layer- retina, optic nerve
Lens
Separate the internal cavity into segments
Anterior segment- anterior chamber, posterior chamber
Posterior segment
What does each segment contain
Aqueous humor, vitreous humor
Palpebra
Eyelid
Superior palpebra and inferior palpebra
Canthus
Corner where palpebra meet
Medial canthus contains a reddish elevation called caruncle
Most Asian people have a vertical fold of skin called
epicanthic folds
Eyelashes
Base of the eyelash are richly innervated to detect slight pressure which triggers reflexive blinking
Conjunctiva
Transparent mucous membrane
Palpebral conjunctiva
Lines innsurface of eyelids
Bulbar conjunctiva
Cover anterior white of eye
When the eye is closed the slit like space between the eyelids and the surface of the eye is the ____
Conjunctival sack
Conjunctiva consists of
Stratified columar epithelium with a think laminar propria of loose CT
