Textbook Question
Accessory glands that produce an oily secretion are the
a. Conjunctiva
b. Lacrimal glands
c. Tarsal glands
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Ch. 15 The Special Senses
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034
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Table of contents
- Ch. 1 The Human Body: An Orientation24
- Ch. 2 Chemistry Comes Alive25
- Ch. 3 Cells: The Living Units21
- Ch. 4 Tissue: The Living Fabric20
- Ch. 5 The Integumentary System11
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton14
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System26
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue19
- Ch. 12 The Central Nervous System26
- Ch. 13 The Peripheral Nervous System and Reflex Activity32
- Ch. 14 The Autonomic Nervous System19
- Ch. 15 The Special Senses26
- Ch. 16 The Endocrine System23
- Ch. 17 Blood25
- Ch. 18 The Cardiovascular System: The Heart24
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues14
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses27
- Ch. 22 The Respiratory System21
- Ch. 23 The Digestive System31
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System26
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System24
- Ch. 28 Pregnancy and Human Development25
- Ch. 29 Heredity11
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034Not the one you use?Change textbook
Chapter 15, Problem 2
The portion of the fibrous layer that is white and opaque is the
a. Choroid
b. Cornea
c. Retina
d. Sclera
Verified step by step guidance1
Understand the structure of the fibrous layer of the eye, which consists mainly of two parts: the cornea and the sclera.
Recall that the cornea is the transparent, clear part of the fibrous layer that allows light to enter the eye.
Recognize that the sclera is the white, opaque portion of the fibrous layer, providing protection and structural support to the eye.
Eliminate options that are not part of the fibrous layer: the choroid is part of the vascular layer, and the retina is the innermost neural layer.
Conclude that the white and opaque portion of the fibrous layer is the sclera.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Fibrous Layer of the Eye
The fibrous layer is the outermost layer of the eyeball, providing structural support and protection. It consists mainly of two parts: the sclera and the cornea. Understanding this layer is essential to identify which part is white and opaque.
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Guided course
5:59
Fibrous Layer
Sclera
The sclera is the white, opaque portion of the fibrous layer. It covers most of the eyeball and maintains the shape of the eye while protecting internal components. Its opacity distinguishes it from the transparent cornea.
Recommended video:
Guided course
5:59Fibrous Layer
Cornea
The cornea is the transparent, dome-shaped front part of the fibrous layer that allows light to enter the eye. Unlike the sclera, it is clear and plays a key role in focusing vision. Recognizing its transparency helps differentiate it from the sclera.
Recommended video:
Guided course
5:59Fibrous Layer
Related Practice
Textbook Question
Which sequence best describes a normal route for the flow of tears from the eyes into the nasal cavity?
a. Lacrimal canaliculi, lacrimal sacs, nasolacrimal ducts
b. Lacrimal ducts, lacrimal canaliculi, nasolacrimal ducts
c. Nasolacrimal ducts, lacrimal canaliculi, lacrimal sacs
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Textbook Question
Of the neurons in the retina, the axons of which of these form the optic nerve?
a. Bipolar cells
b. Ganglion cells
c. Cone cells
d. Horizontal cells
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Textbook Question
Taste buds are found on the
a. Anterior part of the tongue
b. Posterior part of the tongue
c. Palate
d. All of these
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