Textbook Question
Proprioceptors include all of the following except
a. Muscle spindles
b. Tendon organs
c. Epithelial tactile complexes
d. Joint kinesthetic receptors
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Ch. 13 The Peripheral Nervous System and Reflex Activity
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
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Marieb, Hoehn 11th EditionCh. 13 The Peripheral Nervous System and Reflex ActivityProblem 5
Marieb, Hoehn 11th EditionCh. 13 The Peripheral Nervous System and Reflex ActivityProblem 5Chapter 13, Problem 5
Dorsal root ganglia contain
(a) cell bodies of somatic motor neurons
(b) axon terminals of somatic motor neurons
(c) cell bodies of autonomic motor neurons
(d) axon terminals of sensory neurons
(e) cell bodies of sensory neurons.
Verified step by step guidance1
Step 1: Understand the structure and function of dorsal root ganglia (DRG). DRGs are clusters of nerve cell bodies located in the dorsal root of spinal nerves.
Step 2: Recall that the dorsal root ganglia are associated with sensory neurons, not motor neurons. Motor neurons have their cell bodies located in the ventral horn of the spinal cord.
Step 3: Recognize that the DRG contains the cell bodies of sensory neurons, which transmit sensory information from the periphery to the central nervous system.
Step 4: Note that axon terminals of neurons are not located in the ganglia; instead, the ganglia contain the cell bodies, while axons extend away from these bodies.
Step 5: Conclude that the correct description of what dorsal root ganglia contain is the cell bodies of sensory neurons.
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Dorsal Root Ganglia Structure and Function
Dorsal root ganglia (DRG) are clusters of nerve cell bodies located along the dorsal roots of spinal nerves. They primarily contain the cell bodies of sensory neurons, which transmit sensory information from the periphery to the central nervous system. Understanding their role is key to distinguishing sensory from motor neuron components.
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Functional Groups
Sensory Neurons vs. Motor Neurons
Sensory neurons carry signals from sensory receptors to the CNS, while motor neurons transmit commands from the CNS to muscles or glands. Sensory neuron cell bodies reside in dorsal root ganglia, whereas motor neuron cell bodies are located in the spinal cord's ventral horn or autonomic ganglia.
Recommended video:
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04:20The Neuron
Anatomical Location of Neuron Components
Neuron components are distributed in specific anatomical regions: sensory neuron cell bodies are in dorsal root ganglia, motor neuron cell bodies in the ventral horn or autonomic ganglia, and axon terminals are found at synaptic sites. Recognizing these locations helps identify the correct answer regarding neuron types in the dorsal root ganglia.
Recommended video:
Guided course
04:20The Neuron
Related Practice
Textbook Question
Match the names of the cranial nerves in column B to the appropriate description in column A.
Column A
_______ (1) Causes pupillary constriction
_______ (2) The major sensory nerve of the face
_______ (3) Serves the sternocleido-mastoid and trapezius muscles
_______ (4) Purely sensory (two nerves)
_______ (5) Serves the tongue muscles
_______ (6) Allows you to chew your food
_______ (7) Impaired in Bell's palsy
_______ (8) Helps regulate heart activity
_______ (9) Helps you hear and maintain your balance
_______ (10) Contain parasympathetic motor fibers (four nerves)
Column B
a. Abducens
b. Accessory
c. Facial
d. Glossopharyngeal
e. Hypoglossal
f. Oculomotor
g. Olfactory
h. Optic
i. Trigeminal
j. Trochlear
k. Vagus
l. Vestibulocochlear
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Textbook Question
Match the receptor type in column B to the correct description in column A.
Column A
______ (1) Pain, itch, and temperature receptors
______ (2) Contains intrafusal fibers and anulospiral and flower spray endings
______ (3) Discriminative touch receptor in hairless skin (fingertips)
______ (4) Contains receptor endings wrapped around thick collagen bundles
______ (5) Rapidly adapting deep-pressure receptor
______ (6) Slowly adapting deep-pressure receptor
Column B
a. Bulbous corpuscles
b. Tendon organ
c. Muscle spindle
d. Free nerve endings
e. Lamellar corpuscle
f. Tactile corpuscle
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