NBEO Part 1 Ocular Anatomy Ant Seg – Questions
With Correct Solutions
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Terms in this set (432)
__________ is an abnormally increased Telecanthus
distance between the medial canthi of
the eyelids.
____________ is whitening of the eyelashes. Poliosis
____________ is a loss of eyelashes. Madarosis
_____________ is a turning inward of Trichiasis
eyelashes, often secondary to
entroprion.
What makes the skin layer of the B and D
eyelid unique compared to the rest of
the body? (Choose 2)
A) It is the thickest layer in the body
B) It is the thinnest in the body
C) It contains no protein
D) It contains no fat
What cranial nerve is responsible for CN 7
innervating the orbicularis oculi?
Which portion of the orbicularis oculi Orbital portion
is responsible for forced closure of
the eyelids?
,Which portion of the orbicularis oculi Palpebral portion
is responsible for spontaneous and
reflex blinking?
The Muscle of Riolan is also often pars ciliaris
referred to as the ______________.
What muscle is the most superficial Muscle of Riolan
portion of the orbicularis oculi?
The __________ is the most anterior gray line
portion of the muscle of Riolan which
divides the lid into anterior and
posterior portions.
Is the gray line of the muscle of Riolan anterior
located on the most anterior or
posterior portion of the muscle of
Riolan?
Which portion of the orbicularis oculi Muscle of Riolan
is responsible for keeping the lid
margin tightly applied to the globe
during eye movements?
Paralysis of the orbicularis oculi will ectropion
cause the lower eyelid to droop away
from the globe resulting in ______________.
The Muscle of Horner is also referred pars lacrimalis
to as the _________________.
What are the two main muscles that Muscle of Riolan and Muscle of Horner
make up the palpebral portion of the
orbicularis oculi?
,The _____________ is a component of the Muscle of Horner
palpebral portion of the orbicularis
oculi and encircles canaliculi in order
to help drain tears into the lacrimal
sac.
The ____________ acts as a barrier and orbital septum
prevents anterior eyelid infections
from entering the orbit.
True or false? The orbital septum False
protects the lacrimal sac from
infection based on its anatomical
location.
The superior orbital septum serves as levator aponeurosis
the insertion site for the _________________.
What muscle is considered the major Superior palpebral levator muscle
retractor of the upper eyelid (~15
mm)?
The superior palpebral levator muscle CN III
is innervated by which Cranial Nerve?
____________ ligament on the zygomatic Whitnall's ligament
bone serves as fulcrum for the
superior palpebral levator muscle.
Shortly after reaching Whitnall's levator aponeurosis
ligament, the levator muscle extends
into the eyelid as a fan shaped tendon
known as the __________________.
The _____________ palpebral furrow is superior
formed by the insertion of the levator
aponeurosis into the skin of the upper
eyelid.
, The ___________ palpebral furrow is inferior
formed by the indirect attachment of
the inferior rectus muscle into the skin
of the lower eyelid.
The eyelid furrows separate which two B and C
portions of the eyelid? (Choose 2)
A) Palpebral
B) Tarsal
C) Orbital
D) Lacrimal
Is the muscle of muller considered smooth muscle
striated or smooth muscle?
What kind of receptors innervates the B) alpha 2
Muscle of Muller?
A) alpha 1
B) alpha 2
C) beta 1
D) beta 2
Is the Muscle of Muller primarily sympathetic
innervated by the sympathetic or
parasympathetic ANS?
The Muscle of Muller provides 1 to 3mm
approximately _______ to _______mm of
upper eyelid retraction.
The Muscle of Muller originates from Levator
which eyelid structure?
True or false? The lower lid provides True
minor lid retraction and is partially
innervated by the sympathetic system.
With Correct Solutions
Save Groups
Terms in this set (432)
__________ is an abnormally increased Telecanthus
distance between the medial canthi of
the eyelids.
____________ is whitening of the eyelashes. Poliosis
____________ is a loss of eyelashes. Madarosis
_____________ is a turning inward of Trichiasis
eyelashes, often secondary to
entroprion.
What makes the skin layer of the B and D
eyelid unique compared to the rest of
the body? (Choose 2)
A) It is the thickest layer in the body
B) It is the thinnest in the body
C) It contains no protein
D) It contains no fat
What cranial nerve is responsible for CN 7
innervating the orbicularis oculi?
Which portion of the orbicularis oculi Orbital portion
is responsible for forced closure of
the eyelids?
,Which portion of the orbicularis oculi Palpebral portion
is responsible for spontaneous and
reflex blinking?
The Muscle of Riolan is also often pars ciliaris
referred to as the ______________.
What muscle is the most superficial Muscle of Riolan
portion of the orbicularis oculi?
The __________ is the most anterior gray line
portion of the muscle of Riolan which
divides the lid into anterior and
posterior portions.
Is the gray line of the muscle of Riolan anterior
located on the most anterior or
posterior portion of the muscle of
Riolan?
Which portion of the orbicularis oculi Muscle of Riolan
is responsible for keeping the lid
margin tightly applied to the globe
during eye movements?
Paralysis of the orbicularis oculi will ectropion
cause the lower eyelid to droop away
from the globe resulting in ______________.
The Muscle of Horner is also referred pars lacrimalis
to as the _________________.
What are the two main muscles that Muscle of Riolan and Muscle of Horner
make up the palpebral portion of the
orbicularis oculi?
,The _____________ is a component of the Muscle of Horner
palpebral portion of the orbicularis
oculi and encircles canaliculi in order
to help drain tears into the lacrimal
sac.
The ____________ acts as a barrier and orbital septum
prevents anterior eyelid infections
from entering the orbit.
True or false? The orbital septum False
protects the lacrimal sac from
infection based on its anatomical
location.
The superior orbital septum serves as levator aponeurosis
the insertion site for the _________________.
What muscle is considered the major Superior palpebral levator muscle
retractor of the upper eyelid (~15
mm)?
The superior palpebral levator muscle CN III
is innervated by which Cranial Nerve?
____________ ligament on the zygomatic Whitnall's ligament
bone serves as fulcrum for the
superior palpebral levator muscle.
Shortly after reaching Whitnall's levator aponeurosis
ligament, the levator muscle extends
into the eyelid as a fan shaped tendon
known as the __________________.
The _____________ palpebral furrow is superior
formed by the insertion of the levator
aponeurosis into the skin of the upper
eyelid.
, The ___________ palpebral furrow is inferior
formed by the indirect attachment of
the inferior rectus muscle into the skin
of the lower eyelid.
The eyelid furrows separate which two B and C
portions of the eyelid? (Choose 2)
A) Palpebral
B) Tarsal
C) Orbital
D) Lacrimal
Is the muscle of muller considered smooth muscle
striated or smooth muscle?
What kind of receptors innervates the B) alpha 2
Muscle of Muller?
A) alpha 1
B) alpha 2
C) beta 1
D) beta 2
Is the Muscle of Muller primarily sympathetic
innervated by the sympathetic or
parasympathetic ANS?
The Muscle of Muller provides 1 to 3mm
approximately _______ to _______mm of
upper eyelid retraction.
The Muscle of Muller originates from Levator
which eyelid structure?
True or false? The lower lid provides True
minor lid retraction and is partially
innervated by the sympathetic system.
