Anatomy: Unit 1: Eyelid/Eyebrows/Lacrimal System & Orbit

Which of the following glands are within the tarsal plate?

Meibomian

Which of the following eyebrow muscles helps to compensate for a ptosis?

Frontalis

Which of the following sinuses surrounds the nasolacrimal duct?

Maxillary

Which of the following cranial nerves carries parasympathetic innervation to the lacrimal gland for lacrimation?

CN VII

Specificially, which Branch of of CN VII carries parasympathetic innervation to the lacrimal gland for lacrimation?

Vidian Branch

The muscle of Muller is derived from which of the following muscles?

Levator Muscle

Pt reports having a 15 mm ptosis and eye is down and out. What palsy is this?

CN III Palsy

Pt reports having a 15 mm ptosis and eye is down and out. You diagnose CN II Palsy. What muscle is affected here?

Levator Muscle is affected in a Big Ptosis

This muscle compensates for a Big Ptosis (15mm)

Frontalis Muscle

This muscle maintains the eye open normally.

Muscle of Müller

Muscle of Müller is innervated by what system?

Sympathetic Nervous System

Dacryocystitis is a condition that affects what structure?

The Lacrimal Sac

Dacryoadenitis is a condition that affects what structure?

The lacrimal Gland