Eyelids

32 Questions | By Tunstillt | Last updated: Mar 21, 2022 | Total Attempts: 385

Questions

Settings

Create your own Quiz

Questions and Answers

1.

Which of the following is when the accessory row of eyelashes either partial or complete emerjes adjacent to or from the opening of the meibomian glands?
- A.
  
  Distichiasis
- B.
  
  Trichiasis
- C.
  
  Horner syndrome
- D.
  
  Entropian
2.

Which of the following is part of the posterior lamella (pick three)
- A.
  
  Tarsal plate
- B.
  
  Conjunctiva
- C.
  
  Meibomian glands
- D.
  
  Zeis and moll glands
- E.
  
  Orbicularis oculi muscle
- F.
  
  Skin
3.

Which of the following is part of the anterior lamella (pick three)
- A.
  
  Tarsal plate
- B.
  
  Conjunctiva
- C.
  
  Meibomian glands
- D.
  
  Zeis and moll glands
- E.
  
  Orbicularis oculi muscle
- F.
  
  Skin
4.

Which of the following can result in inflammation leading to hordeolum or chalazion?
- A.
  
  Abnormality of keratinization
- B.
  
  Lack of enzyme tyrosinase
- C.
  
  Too much osmolarity of the tear film
- D.
  
  None of the above
- E.
  
  All of the above
5.

Which of the following is when the accessory row of eyelashes either partial or complete emerjes adjacent to or from the opening of the meibomian glands?
- A.
  
  Distichiasis
- B.
  
  Trichiasis
- C.
  
  Horner syndrome
- D.
  
  Entropian
6.

Which of the following is when the normal eyelashes develop and have an abnormal orientation, and grow in instead of out.
- A.
  
  Distichiasis
- B.
  
  Trichiasis
- C.
  
  Horner syndrome
- D.
  
  Entropian
7.

Which of the following is true of distichiasis? (select 3)
- A.
  
  Usually occurs from chronic inflammation
- B.
  
  A mucocutaneous disease
- C.
  
  Can result from ocular cicatricial pemphigoid and stevens-johnson syndrome
- D.
  
  Can result from bell's phenomenom
- E.
  
  When normal eyelashes develop and have an abnormal orientation
8.

In what way does contraction of the orbicularis oculi muscle help in lacrimal pump mechanism?
- A.
  
  The pretarsal muscle surrounding the canaculi helps squeeze in the lacrimal drainage system
- B.
  
  The preseptal muscle surrounding the canaculi helps squeeze in the lacrimal drainage system
- C.
  
  The orbital portion surrounding the canaculi helps squeeze in the lacrimal drainage system
- D.
  
  All of the above
9.

Which muscle is not involved in opening the eye?
- A.
  
  Orbicularis oculi
- B.
  
  Levator palpebrae superioris
- C.
  
  Retractors of the lower lids
- D.
  
  Smooth muscle of muller
10.

Which of the following is true of the levator palpebrae superioris? (select 3)
- A.
  
  Chief retractor
- B.
  
  Innervated by cranial nerve 3
- C.
  
  Equal innervation: R&L yoked
- D.
  
  Innervated by cranial nerve 7
- E.
  
  Chief closer
11.

The superior tarsal muscle is also called muller or mueller's smooth muscle
- A.
  
  True
- B.
  
  False
12.

Which of the following muscles is analagous to mullers?
- A.
  
  Inferior tarsal
- B.
  
  Superior tarsal
- C.
  
  Orbicularis oculi
- D.
  
  Levator palpebrae superioris
13.

Which of the following is true of the levator aponeurosis of the levator palpebrae superioris? (Select 3)
- A.
  
  Inserts into the anterior tarsal
- B.
  
  Inserts into the posterior tarsal
- C.
  
  If disinserts from the tarsal can leads to ptosis
- D.
  
  Passes through the orbicularis muscle
- E.
  
  Inserts into the epidermis
14.

Which of the following is true of the mullers muscle? (select 3)
- A.
  
  Minor retractor of the upper eyelid (2 mm of upper lid elevation)
- B.
  
  Innervated by the sympathetic nervous system
- C.
  
  Main receptor type is alpha 2
- D.
  
  Chief retractor of the upper eyelid
- E.
  
  Main receptor type is beta 1
- F.
  
  Innervated by cranial nerve 3
15.

What are other names for horner's syndrome? (select 2)
- A.
  
  Claude bernard-horner syndrome
- B.
  
  Oculosympathetic palsy
- C.
  
  Ocular cicatricial pemphigoid
- D.
  
  Stevens-johnson syndrome
16.

Which of the following is true of the force generation test (select 3)?
- A.
  
  It helps determine the functioning of the levator
- B.
  
  Can help one differentiate between the types of ptosis
- C.
  
  Done by attaching a force transducer to the lashes and measuring the maximum force generated during upgaze
- D.
  
  It's done by measuring the amount of displacement of the upper eyelid from down gaze to upgaze after fixing the frontalis muscle at the brow
- E.
  
  Done by attaching a force transducer to the lashes and measuring the median force generated during downgaze
17.

Which of the following is true of the LPS? (select 3)
- A.
  
  Hering's law can be applied to its innervation
- B.
  
  Motor neurons arise from the oculomotor complex
- C.
  
  Multiple neurons innervate the levator unilaterally
- D.
  
  A single neuron innervates the levator muscle bilaterally
- E.
  
  LPS relaxes with tarsal muscle stimulation
18.

Which of the following is true of lid closure? (select 3)
- A.
  
  Palpebral portion: more excitable, rapid blink, relex. spontaneous or basic blink
- B.
  
  Orbital portion: less excitable, forced, prolonged closure
- C.
  
  Voluntary wink uses palpebral and orbital portion
- D.
  
  Orbital portion: more excitable, rapid blink, relex. spontaneous or basic blink
- E.
  
  Palpebral portion: less excitable, forced, prolonged closure
- F.
  
  Voluntary wink uses only orbital portion
19.

The chronaxie of the palpebral orbicularis oculi is related to the orbital potion how?
- A.
  
  Since it is a slower motion it is 1/2X the orbitals chronaxie
- B.
  
  Since it is a faster motion it is 1/2X the orbitals chronaxie
- C.
  
  Since it is a slower motion it is 2X the orbitals chronaxie
- D.
  
  Since it is a faster motion it is 2X the orbitals chronaxie
20.

Rapid movement requires low chronaxie
- A.
  
  True
- B.
  
  False
21.

Which of the following is true of the sensory innervation of the lid? (select 3)
- A.
  
  Comes from the ophthalmic branch of the trigeminal nerve
- B.
  
  It comes from cranial nerve 3
- C.
  
  The plexus of nerves is deep to palpebral fibers of the tarsal muscle
- D.
  
  The plexus of nerves is deep to palpebral fibers of the orbicularis oculi muscle
- E.
  
  Requires deep penetration for anesthesia
22.

Rapid movement requires high chronaxie
- A.
  
  True
- B.
  
  False
23.

Which of the following is true of Bell's phenomenon? (Select 3)
- A.
  
  It is a normal protective response
- B.
  
  Disappears when there is a lesion above the pons
- C.
  
  It is the upward and outward rotation of globe with forced closure, sleep
- D.
  
  It is an abnormal response due to a brainstem lesion
- E.
  
  Signals are NOT intact in the midbrain or infranuclear pathway in lower motor neuron palsy
24.

Which of the following matches are correct? (select 3)
- A.
  
  Simple: dystrophy of the levator muscle. lid lags on down gaze and higher than normal lid crease
- B.
  
  Synkinetic: innervation of the levator muscle by V# known as Marcus Gunn jaw-winking syndrome where eyelid retracts with ipsilateral pterygoid muscle contraction
- C.
  
  Aponeurotic: failure of the aponeurosis to insert on the anterior surface of the tarsus and skin crease is high
- D.
  
  Myotonic: epicanthus inversus, telecanthus, and amblyopia
- E.
  
  Collier's sign: dystrophy of the levator muscle. lid lags on down gaze and higher than normal lid crease
- F.
  
  Blepharophimosis: seen with myotonia and progressive muscle weakness and possible cataracts
25.

Which of the following can lead to blepharospasm
- A.
  
  Idiopathic causes
- B.
  
  Drug induced
- C.
  
  Keratitis
- D.
  
  Parkison's
- E.
  
  All of the above