Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Chapter 29, Problem 4PL
Summary Introduction
Introduction: The spinal cord can be defined as the cylindrical bundle of the nerve fibers and connected tissue. It is surrounded in the spinal region and joins approximately all the body parts to the brain. It forms the central nervous system with the brain.
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Axons from the vestibular nerve project to each of the cranial nuclei that control the extrinsic eye muscles.
A. True
B. False
.The ulnar nerve
اخترأحد الخیارات
a. Related medial to 3rd part of the
axillary artery
b. Supplies the coracobrachialis muscle
c. It ends at the lower border of the teres
major muscle
d. It originates from the lateral cord of
the brachial plexus
e. Supplies the triceps muscle
V. Triceps Jerk
a Reflex that assesses the nervous tissue between (and including) the C6,
C7, and C8 nerve roots.
b.
It can be elicited by supporting your partner's arm with the elbow flexed at
a 90° angle, sharply striking the posterior surface of the upper arm
approximately 2 inches above the olecranon (bony "tip" of the elbow).
c. Normal response: The triceps should twitch, and the elbow should extend.
Label the feedback mechanism for this reflex.
THEREH
Binepe
Incepa
Chapter 29 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 29 - The impulse over a motor neuron will lead to a. an...Ch. 29 - Stretch reflex receptors are called a. effectors....Ch. 29 - Stretch reflexes include ail of the following...Ch. 29 - Prob. 4PLCh. 29 - Prob. 5PLCh. 29 - The quadriceps femoris is the effector muscle of...Ch. 29 - The posterior roots of spinal nerves contain the...Ch. 29 - The normal patellar reflex response involves...Ch. 29 - A withdrawal reflex employs...Ch. 29 - Interneurons in a withdrawal reflex are located in...
Ch. 29 - A reflex arc begins with the stimulation of a...Ch. 29 - Effectors of somatic reflex arcs are...Ch. 29 - Prob. 2.5ACh. 29 - The effector muscle of the patellar reflex is the...Ch. 29 - The sensory stretch receptors (muscle spindles) of...Ch. 29 - The posterior root of a spinal nerve contains the...Ch. 29 - The normal plantar reflex results in...Ch. 29 - Stroking the sole of the foot in infants results...Ch. 29 - In a stretch reflex arc, when the agonist muscle...Ch. 29 - Synapses, whether excitatory or inhibitory, occur...Ch. 29 - Prob. 2.13ACh. 29 - Prob. 2.14A
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- Write the name of each cranial nerve next to the Roman numeral representative of that nerve. Then draw a line to link each nerve to its characteristics. Some characteristics may link to VII. more than one nerve, while other nerves may have more than one characteristic. a. Mixed branch controls chewing and detects sensations in lower jaw b. Links the retina to the brain's visual cortex; III damage causes blindness in part or all of a visual field IV c. Regulates voluntary movements of the eyelid and eyeball V VI d. Damage to sensory branch causes loss of sensation in upper face VII VIII e. Governs tongue movements, swallowing, and gagging IX f. Damage causes tongue to deviate toward injured side X XI g. Damage here can cause a drooping eyelid and dilated pupil XII h. Damage causes sagging facial muscles and distorted sense of taste i. Longest and most widely distributed cranial nerve j. Concerned with hearing and balance k. Plays a key role in many heart, lung, digestive, and urinary…arrow_forwardWhich of the following could result in theDens fracturing and/or stabbing into the medullar oblongata? a.whiplash injuries b.diving into shallow water c.possibly hanging d.A,B and c e.None of thesearrow_forwardSpastic paralysis may occur when there is damage to a.the lower motor neurons. b.the upper motor neurons. c.either the lower or the upper motor neurons. d.Spastic paralysis would not result from either of these types of damage.arrow_forward
- The sciatic nerve is actually two nerves combined within the samesheath. The two nerves are thea. femoral and obturator.b. femoral and gluteal.c. common fibular (peroneal) and tibial.d. common fibular (peroneal) and obturator.e. tibial and glutealarrow_forwardWhich muscle contracts in the tension reflex? a. all muscles contract at the same time in this reflex b. contralateral flexor c. ipilateral flexor d. contralateral extensor e. ipilateral extensorarrow_forwardName the 5 components of a reflex arc in order. a. ______________________ b. ______________________ c. ______________________ d. ______________________ e. ______________________ 2. How many neurons are in a monosynaptic reflex arc? _______ How many synapses are in the integrating center? _______ 3. How many neurons are in a polysynaptic reflex arc? _______ How many synapses are in a polysynaptic reflex arc containing two interneurons in the integrating center? _______ 4. Which type of neuron does the sensory neuron synapse with in a monosynaptic reflex arc? ______________________ 5. Which type of neuron does the sensory neuron synapse with in a polysynaptic reflex arc? _______________________arrow_forward
- Carpal tunnel syndrome is a modern medical problem created by repetitive tasks such as keyboarding on computers or doing assembly line work. in this condition nerves in the wrist may become pinched, producing irritating, tingling sensations in the hands and lower arms. a) what is the source of the tinglingarrow_forwardThe tongue that points to the left instead of midline indicates A. Weakness/ paralysis of the left genioglossus muscle B. Left hypoglossal nerve lesion C. There will be difficulty eating. D. A, B E. A, B, Carrow_forwardAll the following are branches of the femoral nerve except: a. medial femoral cutaneous nerve b. saphenous nerve c. nerve to vastus medialis d. lateral femoral cutaneous nerve e. nerve to sartoriusarrow_forward
- You have a patient that has lost all sensation in the muscles innervated by the L5 level of the spinal cord but canstill move those muscles. What is the most likely cause of the deficit?a. Cut L5 Ventral rootb. Cut L5 spinal nervec. Cut L5 dorsal rootd. Spinal cord injury at the L5 levelarrow_forwardA 65-year-old patient with a PMH of DM II presents to the clinic with trouble dropping things with his right hand. He noted nodules at his palm several years ago with a limited range of motion at his fourth finger. Which exam findings best correlate with a diagnosis of Dupuytren's contracture? Answers: A-D A Palpation of a thickened band over the palmar flexor tendon B Visible swan neck deformities of PIPs and DIPS C Audible snap with assisted fourth finger flexion D Tenderness to palpation of a smooth, round mass at the dorsal wrist O Oarrow_forwardWhich of the following statements regarding Patellar plexus is incorrect? a. posterior branch of lateral femoral cutaneous nerve b. infrapatellar branch of saphenous nerve c. medial femoral cutaneous nerve d. anterior branch of lateral femoral cutaneous nerve e. intermediate femoral cutaneous nervearrow_forward
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