Special Senses Flashcards
Where are tears produced?
Lacrimal glands
What tissue makes up the conjunctiva?
Epithelium
What does the neural tunic consist of?
Retina
What does the vascular tunic consist of?
Blood vessels, smooth muscle. Iris, ciliary body and choroid
What does the fibrous tunic consist of?
Sclera & cornea
What is another name for the blind spot?
Optic disc
What is the fovea centralis?
Centre of macula lutea, made only of cone cells
Where do the optic nerves connect?
Optic chiasm
What is the external ear composed of?
Auricle, external acoustic meatus and tympanic membrane
Function of external acoustic meatus?
Hairs & wax prevent foreign objects reaching tympanic membrane
Name the ossicles
Malleus, Incus & Stapes
What does the stapes vibrate against to transmit sound?
Oval window
What structure is responsible for static equilibrium?
Vestibule
What structure is responsible for kinetic equilibrium?
Semicircular canals
What nerve carries vibration impulses to brain?
Vestibularcochlear