Skip to main content
Ch. 13 The Peripheral Nervous System
Amerman - Human Anatomy & Physiology 2nd Edition
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoAmerman 2nd EditionCh. 13 The Peripheral Nervous SystemProblema 1b
Capitolo 13, Problema 1b

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
b. The somatic motor division of the PNS consists of lower motor neurons that directly innervate skeletal muscle fibers.

Guida verificata passo dopo passo
1
Step 1: Understand the somatic motor division of the peripheral nervous system (PNS). The somatic motor division is responsible for voluntary control of skeletal muscles and consists of lower motor neurons that directly innervate skeletal muscle fibers.
Step 2: Analyze the statement provided. The statement claims that the somatic motor division of the PNS consists of lower motor neurons that directly innervate skeletal muscle fibers.
Step 3: Determine if the statement is true or false. Based on the definition of the somatic motor division, the statement is true because lower motor neurons are indeed responsible for directly innervating skeletal muscle fibers.
Step 4: If the statement were false, you would need to correct it. For example, if the statement incorrectly mentioned that the somatic motor division innervates smooth muscle fibers, you would correct it to specify skeletal muscle fibers instead.
Step 5: Conclude that the statement is true as written, and no corrections are necessary.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Somatic Motor Division

The somatic motor division is a part of the peripheral nervous system (PNS) responsible for voluntary movements. It consists of lower motor neurons that transmit signals from the central nervous system to skeletal muscles, enabling conscious control of muscle contractions.
Video consigliato:
Percorso guidato
09:40
Introduction to Cell Division

Lower Motor Neurons

Lower motor neurons are the final pathway for transmitting motor signals from the spinal cord or brainstem to skeletal muscles. They directly innervate muscle fibers, facilitating movement by causing muscle contraction in response to neural impulses.
Video consigliato:
04:20
The Neuron

Innervation

Innervation refers to the supply of nerves to a specific body part, allowing for communication between the nervous system and muscles or organs. In the context of the somatic motor division, it specifically involves the connection between lower motor neurons and skeletal muscle fibers, enabling voluntary movement.
Video consigliato:
02:35
Characteristic 3: Avascular but Innervated
Pratica correlata
Domanda del libro di testo

A spinal nerve divides into a(n)_____ that serves the anterior side of the body and the limbs and a(n)_____that serves the posterior side of the body.

673
views
Domanda del libro di testo

Merkel cell fibers, tactile corpuscles, Ruffini endings, and lamellated corpuscles are all types of:

a. Nociceptors

b. Mechanoreceptors

c. Photoreceptors

d. Chemoreceptors

990
views
Domanda del libro di testo

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.


a. The somatic sensory division of the PNS detects sensory stimuli from the organs in the thoracic and abdominopelvic cavities.

622
views
Domanda del libro di testo

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

e. There are 31 pairs of spinal nerves and 12 pairs of cranial nerves.

797
views
Domanda del libro di testo

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

d. The term nerve is the equivalent of the term neuron.

779
views