Textbook Question
In which direction would you be unable to move your right eye if your right abducens nerve were damaged?
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Ch. 15 The Special Senses
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology26
- Ch. 2 The Chemistry of Life38
- Ch. 3 The Cell55
- Ch. 4 Histology47
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System36
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System42
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart30
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity45
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Chapter 15, Problem 2
The axons of the olfactory nerve terminate in the:
a. Olfactory epithelium
b. Olfactory bulb
c. Olfactory tract
d. Primary olfactory cortex
Verified step by step guidance1
Step 1: Understand the anatomy of the olfactory system. The olfactory nerve (Cranial Nerve I) is responsible for transmitting sensory information related to smell from the nasal cavity to the brain.
Step 2: Recall the pathway of the olfactory nerve. The sensory receptors in the olfactory epithelium detect odor molecules and send signals through the axons of the olfactory nerve.
Step 3: Identify where the axons of the olfactory nerve terminate. These axons pass through the cribriform plate of the ethmoid bone and synapse in a structure located in the brain.
Step 4: Recognize that the structure where the axons synapse is the olfactory bulb, which is the first relay station for processing olfactory information.
Step 5: Eliminate the incorrect options by understanding that the olfactory epithelium is where the sensory receptors are located, the olfactory tract carries signals from the bulb to other brain regions, and the primary olfactory cortex is where higher-level processing occurs.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Olfactory Nerve
The olfactory nerve, also known as cranial nerve I, is responsible for transmitting sensory information related to smell from the nasal cavity to the brain. It consists of sensory neurons that detect odor molecules and send signals to the olfactory bulb, where initial processing occurs.
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Nerves and Blood Supply
Olfactory Bulb
The olfactory bulb is a neural structure located at the base of the brain, directly above the nasal cavity. It receives input from the olfactory nerve and processes olfactory information before relaying it to other brain regions, playing a crucial role in the perception of smell.
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Olfactory Pathway
The olfactory pathway refers to the route that olfactory information takes from the olfactory receptors in the nasal epithelium through the olfactory bulb and into the brain, including the olfactory tract and primary olfactory cortex. This pathway is essential for the interpretation and integration of smell-related signals.
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Related Practice
Textbook Question
1. Match the cell type with the correct stimulus.
_____Rod or cone
_____Hair cell in cochlea
_____Gustatory cell
_____Olfactory neuron
_____Hair cell in vestibule
a. Head movement
b. Odorant
c. Photon
d. Taste substance
e. Sound wave
Textbook Question
Explain what would happen to your sense of smell if there were no basal cells present in the olfactory epithelium.
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Textbook Question
Following a stroke, a patient lost vision in the left visual field. Name several structures in the brain that could have been damaged by the stroke to have caused this vision loss. Be specific as to right or left side.
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