NBEO- Ocular Physiology Exam | Questions and
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Terms in this set (275)
Is the Palpebral or Orbital portion of Palpebral
the orbicularis oculi primarily
responsible for spontaneous
blinking?
The average rate of spontaneous 12-15 blinks per minute
blinking is approximately _______________
blinks per minute.
Which of the following blink reflexes A and C
are caused by CN 2 stimulation?
(Choose 2)
A) Dazzle
B) Cotton swab reflex
C) Menace
D) Loud noise
Which of the following cranial nerves D) CN 9
is NOT involved in reflex blinking?
A) CN 2
B) CN 5
C) CN 8
D) CN 9
,Which of the following is the only B) Dazzle reflex
blink reflex that does NOT involve
input from the frontal lobe?
A) Menace reflex
B) Dazzle reflex
C) Loud noise reflex
D) Cotton swab reflex
Reflex blinking (Except Dazzle) Frontal lobe
initially stimulates which lobe of the
brain?
Which portion of the orbicularis Palpebral
oculi is responsible for reflex and
spontaneous blinking? Palpebral or
Orbital?
Winking is a form of voluntary C) Both the palpebral and orbital portion of the
blinking that requires which muscle orbicularis oculi
contraction?
A) Palpebral portion of orbicularis
oculi only
B) Orbital portion of orbicularis oculi
only
C) Both the palpebral and orbital
portion of the orbicularis oculi
D) None of the above
Benign essential blepharospasm 1) Orbicularis oculi
results from spasms of which 3 2) Procerus
muscles? 3) Corrugator
, Which of the following actions C) Forced eyelid closure
requires contraction of the orbital
portion of the orbicularis oculi?
A) Dazzle reflex
B) Spontaneous blinking
C) Forced eyelid closure
D) Menace reflex
__________________ is a normal defense Bell's phenomenon
reflex present in about 75% of the
population and is characterized by
an upwards and outwards rotation of
the globe following forced lid
closure.
Which of the following is NOT true D (Holocrine)
regarding meibomian glands?
A) There are approximately 25
located in the upper tarsal plate
B) There are approximately 20
located in the lower tarsal plate
C) They secrete the lipid layer of the
tear film
D) They secrete meibum via apocrine
secretion
What kind of glands are meibomian B) Holocrine
glands?
A) Apocrine
B) Holocrine
C) Merocrine
What are the two main accessory Wolfring and Krause
lacrimal glands?
Answers | Verified Solutions | 2026 Edition | Pass
Guaranteed
Save
Terms in this set (275)
Is the Palpebral or Orbital portion of Palpebral
the orbicularis oculi primarily
responsible for spontaneous
blinking?
The average rate of spontaneous 12-15 blinks per minute
blinking is approximately _______________
blinks per minute.
Which of the following blink reflexes A and C
are caused by CN 2 stimulation?
(Choose 2)
A) Dazzle
B) Cotton swab reflex
C) Menace
D) Loud noise
Which of the following cranial nerves D) CN 9
is NOT involved in reflex blinking?
A) CN 2
B) CN 5
C) CN 8
D) CN 9
,Which of the following is the only B) Dazzle reflex
blink reflex that does NOT involve
input from the frontal lobe?
A) Menace reflex
B) Dazzle reflex
C) Loud noise reflex
D) Cotton swab reflex
Reflex blinking (Except Dazzle) Frontal lobe
initially stimulates which lobe of the
brain?
Which portion of the orbicularis Palpebral
oculi is responsible for reflex and
spontaneous blinking? Palpebral or
Orbital?
Winking is a form of voluntary C) Both the palpebral and orbital portion of the
blinking that requires which muscle orbicularis oculi
contraction?
A) Palpebral portion of orbicularis
oculi only
B) Orbital portion of orbicularis oculi
only
C) Both the palpebral and orbital
portion of the orbicularis oculi
D) None of the above
Benign essential blepharospasm 1) Orbicularis oculi
results from spasms of which 3 2) Procerus
muscles? 3) Corrugator
, Which of the following actions C) Forced eyelid closure
requires contraction of the orbital
portion of the orbicularis oculi?
A) Dazzle reflex
B) Spontaneous blinking
C) Forced eyelid closure
D) Menace reflex
__________________ is a normal defense Bell's phenomenon
reflex present in about 75% of the
population and is characterized by
an upwards and outwards rotation of
the globe following forced lid
closure.
Which of the following is NOT true D (Holocrine)
regarding meibomian glands?
A) There are approximately 25
located in the upper tarsal plate
B) There are approximately 20
located in the lower tarsal plate
C) They secrete the lipid layer of the
tear film
D) They secrete meibum via apocrine
secretion
What kind of glands are meibomian B) Holocrine
glands?
A) Apocrine
B) Holocrine
C) Merocrine
What are the two main accessory Wolfring and Krause
lacrimal glands?
