Eye Flashcards
The range of the visible wavelength
400-700nm
The eye can respond to: (4)
The eye responds to
a. varying luminance,
b. sensitivity of form,
c. movement,
d. distance.
The functions or modalities of an eye include: (5)
sensitivity to minute changes in luminosity, dark-adapted scotopic vision, discrimination of form, discrimination of movement, color in light-adapted photopic vision.
The paired eyes can perform what types of vision: (3)
panoramic, Binocular and stereoscopic
The lateral walls of the two orbits diverge at approximately ____________ degrees.
90°
Name the mucous membrane, which lines the inner surface of the eyelids.
palpebral conjunctiva
Name the fibrous tissue that extends from the orbital margin to the eyelids to protect the orbital contents.
orbital septum
All of the following form the medial wall of the orbit, EXCEPT A. ethmoid bone. B. lacrimal bone. C. sphenoid bone. D. palatine bone.
Palatine bone
Name the bone(s) which form(s) the superior wall or roof of the orbit. (3)
orbital part of frontal bone, Lesser wing of the sphenoid, lacrimal fossa of frontal bone
Name the feature which is located between the lateral and inferior orbital walls.
inferior orbital fissure
The apex of the orbit is in the ____________ of __________ bone.
optic canal of lesser wing of the sphenoid bone
Name the bones which form the base of the orbital margin.
maxillary, zygomatic, frontal
The periorbita is continuous with the dura mater through the ______ and _____.
Optic canal
Superior orbital fissure
Name the transparent structure which is attached to the anterior surface of the eyeball.
Bulbar conjunctiva
The conjunctival sac is the space bounded by the ______ and ______.
palpebral and bulbar conjunctiva
The tarsal glands are located in the superior and inferior ______.
Tarsi
The palpebral portion of the orbicularis oculi is in the connective tissue between the ___ and _____.
tarsi and skin of eyelids
The ciliary glands are located in the margin of the _______.
Eyelids
Name the enzyme which is bacteriocidal in the lacrimal fluid.__________
lysozyme
The orbital and palpebral parts of the lacrimal gland are divided by _______.
levator palpebrae superioris