LABORATORY MANUAL FOR HUMAN ANATOMY & PH
4th Edition
ISBN: 9781260254426
Author: Martin
Publisher: MCG
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Textbook Question
Chapter 29, Problem 8PL
The normal patellar reflex response involves extension of the leg at the knee joint.
a. True ________
b. False ______
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Spinal nerves from different segments combine to form nerve plexuses. Nerves from which two plexuses combine to form the radial nerve?
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A. lumbar and sacral plexuses
B. brachial and sacral plexuses
C. cervical and brachial plexuses
D. cervical and sacral plexuses
____________________________________________________________________________
The resting membrane potential of a nerve cell is -70 mV. If threshold is -60 mV and a medication causes a patient's resting membrane potential to change to -75 mV, what is the likely outcome?
Group of answer choices
A. normal generation of action potentials
B. it will be easier to generate an action potential
C. it will be more difficult to generate an action potential
D. facilitation will occur at the cell membrane
During the monitoring of the patient in the light stage of anesthesia, the __________________ reflex remains present.
a.Patellar
b.Palpebral
c.Pinnal
d.Pharynx
A,Nerve fiber
b, cell somas
Second option
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B, peripherally
Chapter 29 Solutions
LABORATORY MANUAL FOR HUMAN ANATOMY & PH
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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- Fill in the blank: The normal plantar reflex results in _______________________ of toes.arrow_forwardDuring a procedure called a lumbar puncture,CSFsurrounding the meringues is withdrawn with a needle. a. This procedure generally is performed between L3 and L5.why do you think the fluid is withdrawn here rather than from higher up in the vertebral column?(hint:think about the structure and location of spinal cord b.often,the sampled CSF is tested for bacteria or virus if a brain infection is suspected.why would CSF sampled from the spinal cord give you information about the condition of the brain? c.would you withdraw CSF if the needle were accidentally inserted in to the epidural space instead of the subarachnoid space ?why or why not?arrow_forward5) Describe what would happen to the myotatic (stretch) reflex in each of the following conditions (get larger,smaller, stay the same, or disappear). Be sure to explain your answers and describe what part of the reflex hasbeen affected by the treatment.a. A complete transection of the spinal cord at the C5 level (look at the dermatome picture in the slides)b. Destruction of the cells in the dorsal root ganglionc. Synaptic depression at the Ia/motor neuron synapsed. Partial destruction of the ventral rootarrow_forward
- Predict the symptoms (both sensory and motor) you might experience if you suffered an injury to each of the following nerves:- a. Median nerve b. Common fibular nerve c. Femoral nerve d. Sciatic nerve e. Ulnar nervearrow_forwardCarpal 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 nervous system is comprised of neurons and support cells A. True B. Falsearrow_forward
- Name the nerve that is tested in each of the following reflexes. 1. Achilles reflex ______________________ 2. Biceps reflex ______________________ 3. Patellar reflex ______________________ 4. Plantar flexion reflex ______________________ 5. Triceps reflex ______________________ 6. Is a Babinski’s sign normal in adults? ______________________arrow_forwardThe peripheral target of axons running in the nerve identified by letter C is superior oblique muscle inferior oblique muscle medial rectus muscle lateral rectus muscle inferior rectus muscle superior rectus musclearrow_forwardWrite 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_forward
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