Domanda del libro di testo
The synapsing of several neurons on the same postsynaptic neuron is called
(a) Serial processing
(b) Reverberation
(c) Divergence
(d) Convergence
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Ch. 13 The Spinal Cord, Spinal Nerves, and Spinal Reflexes
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089
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TOC.tableOfContents
- Ch. 1 An Introduction to Anatomy and Physiology26
- Ch. 2 The Chemical Level of Organization34
- Ch. 3 The Cellular Level of Organization30
- Ch. 4 The Tissue Level of Organization24
- Ch. 5 The Integumentary System17
- Ch. 6 Bones and Bone Structure36
- Ch. 7 The Axial Skeleton11
- Ch. 8 The Appendicular Skeleton17
- Ch. 9 Joints13
- Ch. 10 Muscle Tissue12
- Ch. 11 The Muscular System28
- Ch. 12 Nervous Tissue18
- Ch. 13 The Spinal Cord, Spinal Nerves, and Spinal Reflexes22
- Ch. 14 The Brain and Cranial Nerves20
- Ch. 15 Sensory Pathways and the Somatic Nervous System17
- Ch. 16 The Autonomic Nervous System and Higher-Order Functions30
- Ch. 17 The Special Senses16
- Ch. 18 The Endocrine System20
- Ch. 19 Blood31
- Ch. 20 The Heart31
- Ch. 21 Blood Vessels and Circulation29
- Ch. 22 The Lymphatic System and Immunity31
- Ch. 23 The Respiratory System12
- Ch. 24 The Digestive System18
- Ch. 26 The Urinary System31
- Ch. 27 Fluids & Electrolytes32
- Ch. 28 The Reproductive System12
- Ch. 29 Development and Inheritance23
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089Non è quello che usi tu?Cambia libro di testo
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Martini, Nath, Bartholomew 11th EditionCh. 13 The Spinal Cord, Spinal Nerves, and Spinal ReflexesProblema 7
Martini, Nath, Bartholomew 11th EditionCh. 13 The Spinal Cord, Spinal Nerves, and Spinal ReflexesProblema 7Capitolo 13, Problema 7
A sensory region monitored by the posterior rami of a single spinal segment is
(a) A ganglion
(b) A fascicle
(c) A dermatome
(d) A ramus
Guida verificata passo dopo passo1
Understand the key terms in the question: a 'sensory region' refers to an area of the body that receives sensory input, and 'posterior rami' are branches of spinal nerves that innervate specific regions.
Recall that each spinal nerve splits into anterior and posterior rami; the posterior rami primarily innervate the muscles and skin of the back.
Recognize that a 'dermatome' is a specific area of skin innervated by sensory fibers from a single spinal nerve segment, which includes the posterior rami.
Eliminate options that do not represent sensory regions: a 'ganglion' is a cluster of nerve cell bodies, a 'fascicle' is a bundle of nerve fibers, and a 'ramus' is a branch of a nerve, not a sensory region itself.
Conclude that the correct term for a sensory region monitored by the posterior rami of a single spinal segment is a 'dermatome'.
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Concetti chiave
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Posterior Rami of Spinal Nerves
Posterior rami are branches of spinal nerves that innervate the muscles and skin of the back. Each posterior ramus carries sensory and motor fibers specific to a single spinal segment, providing localized innervation to the dorsal body region.
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Anterior and Posterior
Dermatome
A dermatome is an area of skin innervated by sensory fibers from a single spinal nerve segment. It represents the sensory distribution of one spinal nerve, allowing clinicians to map nerve function and diagnose nerve damage.
Spinal Nerve Anatomy and Branches
Spinal nerves split into anterior (ventral) and posterior (dorsal) rami after exiting the spinal cord. Understanding these branches is essential to identify which structures they innervate, such as muscles, skin, or ganglia.
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Domanda del libro di testo
Spinal nerves are called mixed nerves because they
(a) Contain sensory and motor fibers
(b) Exit at intervertebral foramina
(c) Are associated with a pair of spinal ganglia
(d) Are associated with posterior and anterior roots
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The major nerve of the cervical plexus that innervates the diaphragm is the
(a) Median nerve
(b) Axillary nerve
(c) Phrenic nerve
(d) Common fibular nerve
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Domanda del libro di testo
The following are the steps involved in a neural reflex.
1. Activation of a sensory neuron
2. Activation of a motor neuron
3. Response by an effector
4. Arrival of a stimulus and activation of a receptor
5. Information processing
The proper sequence of these steps is
(a) 1, 3, 4, 5, 2
(b) 4, 5, 3, 1, 2
(c) 4, 1, 5, 2, 3
(d) 4, 3, 1, 5, 2
(e) 3, 1, 4, 5, 2
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Domanda del libro di testo
The genitofemoral, femoral, and lateral femoral cutaneous nerves are major nerves of the
(a) Lumbar plexus
(b) Sacral plexus
(c) Brachial plexus
(d) Cervical plexus
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Domanda del libro di testo
The anterior roots of each spinal segment
(a) Bring sensory information into the spinal cord
(b) Control peripheral effectors
(c) Contain the axons of somatic motor and visceral motor neurons
(d) Do both b and c
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