Special Sense Organs Flashcards
Organs specialized to receive sensory stimuli?
Special sense organs
Receive visual stimuli?
Eyes
Receives olfactory stimuli?
Nose
Receives auditory stimuli?
Ears
Receives gustatory stimuli?
Tongue
Receptor organ for sense of touch (through Meissner’s corpuscle)
Skin
Parts of the eye are derived from?
Ectoderm and mesoderm
Single median region of neural plate ectoderm near rostral margin?
Optic field
It connects with the diencephalon through the optic stalks?
Optic vesicles
- double-walleed cups
- original lumen of optic vesicles became slit-like
Optic cups
A gap along the optic stalk?
Choroid fissure
A single layer of cuboidal or columnar epithelium
lens epithelium
Lens fibers and lens epithelium produce lens proteins which are called?
Crystallins
Corneal epithelium secretes a collagenous matrix called?
Primary stroma
What does the corneal endothelial cells secretes causes the primary stroma to swell?
Hyaluronic acid
It destroys the hyaluronic acid
Hyaluronidase
From cranial part of the thin overlapping part of the optic cup?
Iris epithelium and muscles
From the reduced opening of the optic cup?
Pupil
From the caudal part of the overlapping portion of optic cup?
Cilliary apparatus
Inner vascular layer?
Choroid
Outer fibrous layer?
Sclera
It provides attachment to muscles of the eyeball
Sclera
From cephalic paraxial mesoderm?
Extrinsic muscles of eyeball
From pigmented layer of retina?
Intrinsic muscles of eyeball
From folds of skin that grow over the cornea?
Eyelids
Space b/w eyelid and cornea?
Conjuctival sac
From surface epithelium of eyelids that invaginates?
Lacrimal gland
Cornea and sclera?
Fibrous tunic
Choroid, ciliary body, ciliary processes and iris
Vascular tunic
Retina?
Nervous tunic