Master the Anatomy of Eyeball mcq Part 03 with 40+ high-yield MCQs on the orbit, extraocular muscles, nerve supply, blood supply, and eye development. Ocular anatomy quiz Perfect for Ophthalmology and Optometry exam preparation, including NEET, AIIMS, and university-level revisions. eye anatomy question bank Strengthen your basics with detailed questions and answers designed for smart learning.

Orbit & Extraocular Muscles

81. Orbit is shaped like a:
A. Cone
B. Quadrilateral pyramid
C. Cylinder
D. Sphere

View Answer

B. Quadrilateral pyramid ✅

82. Extraocular muscles are:
A. 4
B. 5
C. 6
D. 7

View Answer

C. 6 ✅

83. Levator palpebrae superioris is responsible for:
A. Elevation of eyeball
B. Elevation of upper eyelid
C. Depression of eyelid
D. Eye rotation

View Answer

B. Elevation of upper eyelid ✅

84. Superior oblique muscle is supplied by:
A. Oculomotor
B. Trochlear
C. Abducens
D. Trigeminal

View Answer

B. Trochlear ✅

85. Lateral rectus muscle is supplied by:
A. Trochlear
B. Abducens
C. Oculomotor
D. Optic

View Answer

B. Abducens ✅

86. Ophthalmic artery arises from:
A. External carotid
B. Internal carotid
C. Middle cerebral
D. Basilar artery

View Answer

B. Internal carotid ✅

87. Central retinal artery is a branch of:
A. Short ciliary artery
B. Ophthalmic artery
C. External carotid artery
D. Angular artery

View Answer

B. Ophthalmic artery ✅

88. Choroid is mainly supplied by:
A. Central retinal artery
B. Short posterior ciliary arteries
C. Long ciliary arteries
D. Superior ophthalmic artery

View Answer

B. Short posterior ciliary arteries ✅

89. Central retinal vein drains into:
A. Angular vein
B. Cavernous sinus
C. Inferior petrosal sinus
D. Sigmoid sinus

View Answer

B. Cavernous sinus ✅

90. Major orbital venous drainage is through:
A. Jugular vein
B. Superior ophthalmic vein
C. Subclavian vein
D. Vertebral vein

View Answer

B. Superior ophthalmic vein ✅

91. Ophthalmic nerve is branch of:
A. Oculomotor
B. Trigeminal
C. Trochlear
D. Abducens

View Answer

B. Trigeminal ✅

92. Lacrimal nerve supplies:
A. Medial eyelid
B. Lateral eyelid + lacrimal gland
C. Nose
D. Cornea

View Answer

B. Lateral eyelid + lacrimal gland ✅

93. Supraorbital nerve is branch of:
A. Maxillary
B. Frontal
C. Mandibular
D. Zygomatic

View Answer

B. Frontal ✅

94. Long ciliary nerves carry:
A. Parasympathetic to sphincter pupillae
B. Sympathetic to dilator pupillae
C. Parasympathetic to lacrimal gland
D. Motor to levator

View Answer

B. Sympathetic to dilator pupillae ✅

95. Parasympathetic supply to ciliary muscle arises from:
A. Edinger–Westphal nucleus
B. Trochlear nucleus
C. Facial nucleus
D. Spinal nucleus

View Answer

A. Edinger–Westphal nucleus ✅

96. Ciliary ganglion receives all roots EXCEPT:
A. Sensory root
B. Parasympathetic root
C. Sympathetic root
D. Motor root

View Answer

D. Motor root ✅

97. Preganglionic parasympathetic fibres for eye arise in:
A. Edinger–Westphal nucleus
B. Red nucleus
C. Facial nucleus
D. Medullary nucleus

View answer

A. Edinger–Westphal nucleus ✅

98. Sympathetic supply to dilator pupillae originates in:
A. Ciliospinal centre of Budge
B. Edinger–Westphal nucleus
C. Dorsal nucleus of vagus
D. Superior olive

View Answer

A. Ciliospinal centre of Budge ✅

99. Muller’s muscle of eyelid is innervated by:
A. Sympathetic
B. Parasympathetic
C. Trochlear
D. Oculomotor

View Answer

A. Sympathetic ✅

100. Parasympathetic secretomotor supply to lacrimal gland passes via:
A. Facial nerve
B. Oculomotor
C. Trigeminal
D. Glossopharyngeal

View Answer

A. Facial nerve ✅

Ocular anatomy quiz Development of Eye

101. Eye development begins around day:
A. 18
B. 22
C. 28
D. 30

View Answer

B. 22 ✅

102. Optic vesicle arises from:
A. Mesoderm
B. Neuroectoderm
C. Surface ectoderm
D. Endoderm

View Answer

B. Neuroectoderm ✅

103. Lens placode is derived from:
A. Neuroectoderm
B. Surface ectoderm
C. Mesenchyme
D. Endoderm

View Answer

B. Surface ectoderm ✅

104. Lens vesicle separates from ectoderm around:
A. 28th day
B. 33rd day
C. 40th day
D. 50th day

View Answer

B. 33rd day ✅

105. Choroidal (fetal) fissure is seen in:
A. Superior optic cup
B. Inferior optic cup
C. Lens vesicle
D. Ciliary body

View Answer

B. Inferior optic cup ✅

106. Corneal epithelium is derived from:
A. Surface ectoderm
B. Mesoderm
C. Endoderm
D. Neural crest

View Answer

A. Surface ectoderm ✅

107. Retina develops from:
A. Surface ectoderm
B. Neural ectoderm
C. Mesenchyme
D. Endoderm

View Answer

B. Neural ectoderm ✅

108. Crystalline lens is derived from:
A. Mesenchyme
B. Surface ectoderm
C. Endoderm
D. Neural crest

View Answer

B. Surface ectoderm ✅

109. Ciliary muscle is derived from:
A. Neural ectoderm
B. Mesenchyme
C. Surface ectoderm
D. Endoderm

View Answer

B. Mesenchyme ✅

110. Dilator pupillae muscle is derived from:
A. Neural ectoderm
B. Mesenchyme
C. Endoderm
D. Surface ectoderm

View Answer

A. Neural ectoderm ✅

111. At birth, AP diameter of eyeball is:
A. 12 mm
B. 16.5 mm
C. 20 mm
D. 22 mm

View Answer

B. 16.5 mm ✅

112. Corneal diameter at birth:
A. 8 mm
B. 9 mm
C. 10 mm
D. 11.7 mm

View Answer

C. 10 mm ✅

113. Corneal adult size is attained by:
A. 6 months
B. 1 year
C. 2 years
D. 5 years

View Answer

C. 2 years ✅

114. Pupil at birth is:
A. Normal size
B. Small, poorly dilating
C. Large
D. Irregular

View Answer

B. Small, poorly dilating ✅

115. Macula differentiates completely by:
A. At birth
B. 1 month
C. 4–6 months
D. 1 year

View Answer

C. 4–6 months ✅

116. Infantile lens nucleus appears:
A. At birth
B. 2 months
C. 6 months
D. 1 year

View Answer

A. At birth ✅

117. Refractive status of newborn:
A. Emmetropic
B. Myopic
C. Hypermetropic (+2 to +3 D)
D. Astigmatic

View Answer

C. Hypermetropic (+2 to +3 D) ✅

118. Myelination of optic nerve stops at:
A. Lamina cribrosa
B. Fovea
C. Macula
D. Cornea

View Answer

A. Lamina cribrosa ✅

119. Tears are secreted normally after:
A. Birth
B. 1 month
C. 2–3 months
D. 6 months

View Answer

C. 2–3 months ✅

120. Orbit of newborn compared to adult is:
A. More divergent (≈50°)
B. Less divergent
C. Equal
D. Vertical

View Answer

A. More divergent (≈50°) ✅

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