Orbital Cavity Flashcards
This gland is located with the cavity at its lateral aspect
Lacrimal gland
This protects the eye from external irritation
Eyelid
Which among the angles of the eyelids are more acute
Lateral canthal angle
What are the important structures of the medial canthal angle
Caruncle
Plica semilunaris
Lacrimal papilla
Punctum lacrimale
What gland of the eyelids are the sebaceous gland found at the root of the eyelashes
Gland of Zeis
What gland gives an oily secretion to the lid margin
Meibomian gland
Meibomian gland is also called what
Tarsal gland
This is a small non malignant localized swelling of the eyelid resulting from obstruction and retained secretions of the tarsal gland
Chalazion
A furuncle on the margin of the eyelid originating in the sebaceous gland of an eyelash
Hordeolum
Stye
This part of the orbicularis oris is responsible for the forceful close of the eye
Orbital part
Part of the orbicularis oris involve in blinking
Palpebral part
Without the tarsus, there would be presence of what
Flappy eyelids
This is the origin of the pretarsal
Levator aponeurosis
Drooping of eyelids
Ptosis
What part of the conjunctiva covers the sclera
Bulbar part
This is a fibroelastic membrane that envelopes the posterior aspect going from optic nerve to the ciliary body
Tenon’s capsule
What part of the lacrimal apparatus where the lacrimal gland rest on the anterolateral surface of the orbital roof
Secretory portion
This part of the orbital wall is the thinnest but the least fractured
Medial wall
This part of the orbital wall is rarely fractured and also used as the access point during surgery
Lateral wall
This is the inability to elevate the affects eye because of the orbital muscle entrapment
Orbital floor fracture
This divides the central portion of the superior orbital fissure
Annulus of Zinn
Common tendinous ring
Annular ring
Actions of the extraocular muscles of the oblique muscle
Abductors
Actions of the extraocular muscles of the vertical recti muscles
Adductors
Actions of the extraocular muscles of the superior muscles
Intorters
Actions of the extraocular muscles of the inferior muscles
Extorters
Medial deviation patient with strabismus
Esotropia
Lateral deviation patient with strabismus
Exotropia
Inferior Oculomotor nerve supplies what muscle
Inferior rectus
Inferior medial rectus
Inferior oblique
Superior part of the Oculomotor nerve supplies what muscle
Superior rectus
Levator palpebral muscle
Commonly referred to as the white of the eye
Sclera
This gives nourishment to the eyes
Choroid
This is a clear fluid that fills the anterior and posterior chamber of ciliary process
Aqueous humor
Where does the aqueous humor drain into
Canal of schlemm
