Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
Publisher: PEARSON
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Chapter 17, Problem 1RC
Summary Introduction
Introduction:
Preganglionic neurons are found between T1 (neurons of the thoracic region) and L2 (neurons of the lumbar region) of the spinal cord. Cell bodies of these neurons are located at the lateral horn of the spinal cord between T1 and L2. Their axons enter the ventral root of these segments.
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Chapter 17 Solutions
Human Anatomy (9th Edition)
Ch. 17 - Match each numbered item with the most closely...Ch. 17 - Prob. 2RFTCh. 17 - Prob. 3RFTCh. 17 - Prob. 4RFTCh. 17 - Prob. 5RFTCh. 17 - Prob. 6RFTCh. 17 - Match each numbered item with the most closely...Ch. 17 - Prob. 8RFTCh. 17 - Prob. 9RFTCh. 17 - Prob. 10RFT
Ch. 17 - Visceral motor neurons in the CNS (a) are...Ch. 17 - Prob. 12RFTCh. 17 - Prob. 13RFTCh. 17 - Prob. 14RFTCh. 17 - The neurotransmitter at all synapses and...Ch. 17 - Prob. 16RFTCh. 17 - 17. Sympathetic preganglionic fibers are...Ch. 17 - Prob. 18RFTCh. 17 - Postganglionic fibers of autonomic neurons are...Ch. 17 - The white ramus communicans a. carries the...Ch. 17 - Prob. 1RCCh. 17 - Prob. 2RCCh. 17 - Prob. 3RCCh. 17 - Prob. 4RCCh. 17 - Prob. 5RCCh. 17 - Prob. 6RCCh. 17 - 7. How do sympathetic chain ganglia differ from...Ch. 17 - 8. Compare the general effects of the sympathetic...Ch. 17 - Prob. 9RCCh. 17 - Prob. 1CTCh. 17 - Prob. 2CT
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- For each of the following muscles or body regions, identify the plexus and the peripheral nerve (or branch of one) involved. Use one choice from Key A followed by one choice from Key B. Key A: Plexuses Key B: Nerves(a) brachial (1) common fibular (6) phrenic(b) cervical (2) femoral (7) radial(c) lumbar (3) median (8) tibial(d) sacral (4) musculocutaneous (9) ulnar (5) obturatorStructure Innervated__,__ (1) the diaphragm__,__(2) muscles of the posterior compartments of thigh and leg__,__(3) anterior compartment thigh muscles__,__(4) medial compartment thigh muscles__,__(5) anterior arm muscles that flex the forearm__,__(6) muscles that…arrow_forwardGiven these phrases:(1) neuron cell bodies in the nuclei of cranial nerves(2) neuron cell bodies in the lateral gray horn of the spinal cord(T1–L2 and S2–S4)(3) two synapses between the CNS and effectors(4) regulates smooth muscleWhich of the phrases are true for the autonomic nervous system?a. 1,3 b. 2,4 c. 1,2,3 d. 2,3,4 e. 1,2,3,4arrow_forwardSpinal nerves are called mixed nerves because they, (a) are associated with a pair of spinal ganglia. (b) exit at intervertebral foramina. (c) contain sensory and motor fibers. (d) are associated with a pair of dorsal and ventral roots.arrow_forward
- Which one of the following contains only motor fibers? (a) dorsal root, (b) dorsal ramus, (c) ventral root, (d) ventral ramus.arrow_forwardSpinal nerves are called mixed nerves because they (a) are associated with a pair of dorsal root ganglia. (b) exit at intervertebral foramina. (c) contain sensory and motor fibers. (d) are associated with a pair of dorsal and ventral roots.arrow_forward2) Place the parts of a reflex arc in proper order: (A)motor neuron (B)sensory neuron (C)sensory receptor (D)effector (E)interneuron Group of answer choices A) E, D, C, B, A b) D, B, E, A, C c) B, C, E, A, D d) C, B, E, A, D e) B, C, E, D, Aarrow_forward
- A friend who works in a research lab is conducting an experiment to study motor movement. First the animal undergoes spinal transection at T5. Then, the animal is trained to walk on a treadmill while supported. Finally, GABA antagonists are injected into the lumbar enlargement of the spinal cord. After treatment of the drug, what motor response would you expect? Question 5 options: A) The animal no longer has proper functioning of back or front legs while on the treadmill B) The animal no longer has coordinated movement of the front legs while on the treadmill C) The animal no longer has coordinated movement of the back legs while on the treadmill D) The animal can walk normally on the treadmill (with support)arrow_forwardCell bodies of UMN that synapse on LMN lie in all of these areas EXCEPT a) Medulla b) Thalamus c) Pre-motor cortex Pons d) Primary motor cortexarrow_forwardAnatomy and Physiology motor areas of the cortex are located .............to the .............. sulcus choices a. anterior, central b. anterior, hypocampal c. posterior, central d. anterior, cyngulatearrow_forward
- Match the names of the cells in column B with the function they perform, shown in column A.Column A Column B(1) line the central cavity of the brain (a) astrocytes(2) form myelin in the CNS (b) ependymal cells(3) form myelin in the PNS (c) microglial cells(4) remove neurotransmitters in the CNS (d) oligodendrocytes(5) regulate ionic composition of thefluid around neurons in the CNS (e) satellite cells (f) Schwann cells(6) CNS phagocytesarrow_forwardAll of the following are true regarding the descending motor tracts EXCEPT which one? A. They originate in either the cerebral cortex or brainstem. B. The pathways are generally made of a two-neuron system. C. The upper motor neuron fibers target lower motor neurons of the spinal cord or cranial nerves. D. They are involved in assisting with voluntary movement.arrow_forwardMatch functions with parts of the central nervous system (CNS) This structure regulates voluntary movements (checks what the brain has instructed against what is actually happening) The primary motor area is located here This structure is a major sensory relay centre Thirst and satiety centres are located herearrow_forward
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