Term
| How do tears drain into the nose? |
|
Definition
| Through the nasolacrimal duct |
|
|
Term
| What are the three nerves in the orbit that do not go inside the Common Tendinous Ring? |
|
Definition
|
|
Term
| What are the two arteries in the orbit? |
|
Definition
Central Retina Artery
Opthalmic Artery |
|
|
Term
| What are the two veins of the orbit? |
|
Definition
| Superior/Inferior Opthalmic |
|
|
Term
| What provides sensory enervation to the orbit? |
|
Definition
|
|
Term
| What are the branches of the Opthalmic nerve? |
|
Definition
Frontal
Lacrimal
Nasociliary |
|
|
Term
| What nerves provide motor enervation to the orbit? |
|
Definition
Oculomotor
Abducens
Trochlear |
|
|
Term
| What provides parasympathetic enervation to the lacrimal glands of the orbit? |
|
Definition
| Greater Petrosal Nerve (Branch of Facial Nerve), ganglion is the Pterygopalantine |
|
|
Term
| What orbital muscles are enervated by the oculomoter nerve? |
|
Definition
Levator Palpabrae Superioris
Superior Rectus
Medial Rectus
Inferior Rectus
Inferior Oblique |
|
|
Term
| What muscles of the orbit are enervated by the Trochlear nerve? |
|
Definition
|
|
Term
| What muscle of the orbit is enervated by the abducens nerve? |
|
Definition
|
|
Term
| What clinical presentation is seen in the orbit with the loss of the abducens? |
|
Definition
Medial Strabismus
-gaze directed inwards |
|
|
Term
| What nerve is damaged if the eye is deviated down and out? |
|
Definition
|
|
Term
| Bulging optic disc indicates what? |
|
Definition
|
|
Term
| Sphincter Pupili and Ciliary muscles are enervated by what nerve? |
|
Definition
| Parasympathetics from CN III, synapse in the ciliary ganglion |
|
|
Term
| What enervates the dilator pupili? |
|
Definition
| Sympathetic fibers from CN III, ganglion is the superior cervical ganglion |
|
|
Term
| What enervates Muller's muscle? What is the function of Muller's muscle? |
|
Definition
| Sympathetics from CN III, the function of Mullers muscle is to elevate the upper eyelid |
|
|
Term
|
Definition
| Drooping of the eyelid from dysfunction of Muller's Muscle |
|
|
Term
| What is Horner's syndrome? |
|
Definition
Loss of sympathetics to the head
-constricted pupil
-flushing of face
-Ptosis
-Anhydrosis |
|
|
