Pearson eText Human Anatomy -- Instant Access (Pearson+)
9th Edition
ISBN: 9780135212936
Author: Frederic Martini, Robert Tallitsch
Publisher: PEARSON+
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Textbook Question
Chapter 14, Problem 10RFT
Match each numbered item with the most closely related lettered item.
pudendal nerve ..........................
a. tracts and columns
b. specific region of body surface
c. cervical plexus
d. motor neuron axons
e. sacral plexus
f. lumbar plexus
g. single bundle of axons
h. involuntary motor response
i. loose connective tissue, adipose tissue
j. pectoral girdle/upper extremity
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Anatomy and Physiology
motor areas of the cortex are located .............to the .............. sulcus
choices
a. anterior, central
b. anterior, hypocampal
c. posterior, central
d. anterior, cyngulate
the bundle of fibers that the spinal cord continues down is called the ........................
The thoracic spinal cord has the smallest dorsal horn area because:
a.
the trunk is the most innervated area of the body and therefore there are more projections into the dorsal horn there.
b.
the trunk is the least innervated area of the body and therefore there are fewer projections into the dorsal horn there.
c.
most of the descending upper motor neurons have already entered the ventral horn.
d.
There are many motor neurons to control the small muscles around the spine.
Chapter 14 Solutions
Pearson eText Human Anatomy -- Instant Access (Pearson+)
Ch. 14 - Match each numbered item with the most closely...Ch. 14 - Prob. 2RFTCh. 14 - Prob. 3RFTCh. 14 - Prob. 4RFTCh. 14 - Prob. 5RFTCh. 14 - Prob. 6RFTCh. 14 - Prob. 7RFTCh. 14 - Prob. 8RFTCh. 14 - Prob. 9RFTCh. 14 - Match each numbered item with the most closely...
Ch. 14 - Label the following structures on the accompanying...Ch. 14 - Prob. 12RFTCh. 14 - The brachial plexus (a) innervates the shoulder...Ch. 14 - Prob. 14RFTCh. 14 - Prob. 15RFTCh. 14 - Prob. 16RFTCh. 14 - Prob. 17RFTCh. 14 - Prob. 18RFTCh. 14 - Prob. 19RFTCh. 14 - Prob. 20RFTCh. 14 - Prob. 21RFTCh. 14 - Prob. 1RCCh. 14 - Prob. 2RCCh. 14 - Tingling and numbness in the palmar region of the...Ch. 14 - Prob. 4RCCh. 14 - Prob. 5RCCh. 14 - Prob. 6RCCh. 14 - Prob. 7RCCh. 14 - Prob. 8RCCh. 14 - Prob. 9RCCh. 14 - Why is it important that a spinal tap be done...Ch. 14 - Prob. 1CTCh. 14 - Prob. 2CTCh. 14 - Prob. 3CT
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- All 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_forwardif a signal from within one hemisphere travels from one gyrus to another gyrus it uses........................fibers a. projection b. commissural c. corpus collasum d. associationarrow_forwardSensory information from your internal organ is sent to the brain through the following nerve: a.) Autonomic nerve b.) Special visceral sensory nerve c.) General visceral sensory nerve d.) General somatic motor nervearrow_forward
- A typical spinal nerve: Select one: a. normally divides into four branches that will supply the thoracic region, the abdominal region, the pelvic region and the limbs b. is covered by the connective tissue called epineurium c. attaches to the spinal cord via the dorsal root ganglia d. is protected by the dura, arachnoid and pia mater e. contains one nerve fibre and it's myelin sheatharrow_forwardnerve fascicles are formed and covered by........................arrow_forwarddamage to which spinal nerve might produce the following physical findings? a- inability to extend the forearm and hand......................................... b- inability to breathe............................................ c- inability to feel the skin over the anterolateral thigh....................................... d- inability to dorsiflex the foot.............................arrow_forward
- 19) which of the following would have the largest nerve to fiber ratio? ( largest motor unit) a) superior rectus(extraocular muscle) b) dorsal interossei( hand intrinsic) c) abductor pollicis ( hand intrinsic) d) quadricepsarrow_forwardThe brain & the spinal cord are protected by: Select one: a. The bones of the skull and the vertebral column. b. The meninges c. The cerebrospinal fluid (CSF) d. All are correct e. (a) and (b) onlyarrow_forwardSelect the statement that best describes the local circuitry of the spinal cord. a. There is no local circuitry within the spinal cord. b. Local circuits enable the same neurons to innervate both distal and proximal muscles. c. Neurons that innervate distal muscles are interconnected across the midline. d. None of the answers. e. Neurons that innervate proximal muscles are interconnected through many spiral cord segments.arrow_forward
- Which of the following does not describe the spinal nerves? A.They are created through a combination of dorsal and ventral roots. B. They exit the vertebral column through intervertebral spaces. C. Some are made up of only sensory fibers, while others are made up of motor fibers. D. There are thirty-one spinal nerves. They are named based on where they exit the vertebral column.arrow_forwardWhich of the following is NOT true in adults? (A) The tapering end of the spinal cord may terminate as high as T12 or as low as L3. (B) The first cervical nerves lack dorsal roots in 50% of people. (C) The coccygeal nerve may be absent. (D) The terminal filum is the vestigial rem- nant of the caudal part of the spinal cord that was in the tail of the embryo. (E) The spinal cord has a lumbar enlargement for the lower limb but no equivalent enlargement for the smaller upper limb.arrow_forward5) cranial nerve II, the optic nerve sends nerve impulses to the brain carrying information about the things we see. These nerve fibers most likely belong to which division of the nervous system? a) sympathetic division b) sensory(afterent) division c) parasympathetic division d)somatic nervous systemarrow_forward
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