Textbook Question
The structure that allows pressure in the middle ear to be equalized with atmospheric pressure is the
a. Pinna
b. Pharyngotympanic tube
c. Tympanic membrane
d. Oval window
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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 10
Olfactory nerve filaments are found
a. In the optic bulbs
b. Passing through the cribriform plate of the ethmoid bone
c. In the optic tracts
d. In the olfactory cortex
Verified step by step guidance1
Step 1: Understand the anatomy of the olfactory nerve (cranial nerve I), which is responsible for the sense of smell. It consists of filaments that connect the nasal cavity to the brain.
Step 2: Recall that the olfactory nerve filaments pass from the nasal mucosa through small holes in the cribriform plate of the ethmoid bone to reach the olfactory bulbs.
Step 3: Recognize that the olfactory bulbs are structures located on the inferior surface of the frontal lobe of the brain, where the olfactory nerve filaments synapse.
Step 4: Differentiate the olfactory nerve filaments from other structures such as the optic bulbs and optic tracts, which are related to vision, not smell.
Step 5: Conclude that the correct anatomical location of the olfactory nerve filaments is passing through the cribriform plate of the ethmoid bone.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Olfactory Nerve Anatomy
The olfactory nerve (cranial nerve I) consists of sensory nerve fibers responsible for the sense of smell. These filaments originate in the nasal mucosa and pass through the cribriform plate of the ethmoid bone to reach the olfactory bulb.
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Cribriform Plate of the Ethmoid Bone
The cribriform plate is a sieve-like structure in the ethmoid bone located at the roof of the nasal cavity. It allows the passage of olfactory nerve filaments from the nasal mucosa to the olfactory bulbs in the brain.
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Olfactory Bulbs and Tracts
The olfactory bulbs are neural structures that receive input from olfactory nerve filaments. From the bulbs, the olfactory tracts carry signals to the olfactory cortex for processing the sense of smell.
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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
Which of the following statements does not correctly describe the spiral organ?
a. Sounds of high frequency stimulate hair cells at the basal end.
b. The 'hairs' of the receptor cells are embedded in the tectorial membrane.
c. The basilar membrane acts as a resonator.
d. The more numerous outer hair cells are largely responsible for our perception of sound.
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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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