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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Textbook Question
Chapter 38, Problem 1.4A
Complete the following statements:
Sensory impulses travel from the organs of equilibrium to the brain on vestibular neurons of the nerve.
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For the reflex arc in Figure, name the: ______________________ 1. Nerve carrying motor information causing right leg flexion ______________________ 2. Nerve carrying motor information causing left leg extension ______________________ 3. Agonistic muscles for right leg flexion ______________________ 4. Agonistic muscles for left leg extension
Correctly label the following anatomical features of a nerve.
Endoneurium
Posterior root
ganglion
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Perineurium
Epineurium
Myelinated nerve fibers
Rootlets
Myelin
Fascicle
17
Blood vessels
Unmyelinated nerve fibers
The most rapid sensory fiber conducting sensorial information to the dorsal horn of
the spinal cord is:
Type IA alpha
Type IIA beta
Type IIIA delta
Type IB
Chapter 38 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 38 - The sense organs associated with equilibrium are...Ch. 38 - Prob. 2PLCh. 38 - Hair cell receptors associated with dynamic...Ch. 38 - Otoliths are composed of a. calcium carbonate. b....Ch. 38 - Which of the following is not associated with...Ch. 38 - Eye twitching movements characteristic during...Ch. 38 - Otoliths are located within the semicircular ducts...Ch. 38 - Complete the following statements: The organs of...Ch. 38 - Complete the following statements: All of the...Ch. 38 - Complete the following statements: Otoliths are...
Ch. 38 - Complete the following statements: Sensory...Ch. 38 - Complete the following statements: The sensory...Ch. 38 - Complete the following statements: The sensory...Ch. 38 - Complete the following statements: The of this...Ch. 38 - Complete the following statements: The vestibular...Ch. 38 - Vision and equilibrium test results: a. When the...Ch. 38 - What additional sensory information would you...
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- Branches of the supraclavicular nerve, which originates from the first and second thoracic nerve roots, supply the skin in the upper pectoral region. * True Falsearrow_forwardWrite the mnemonics for crainial nerves in 2 setsarrow_forwardPlace the following neural structures in the correct order based on pupillary constriction as a result of light being shone in your eye. Pupillary smooth muscle contraction Optic nerve-cranial nerve Il oculomotor nerve-cranial nerve III Midbrain (superior colliculi) Light hits photoreceptor cells in the retinaarrow_forward
- Identify the nerve that is carrying the sensory information from the eye to the brain.arrow_forwardExplain the physiology of ascending pathways by placing each word or phrase into the blanks to complete the sentences. posterior horn tactile corpuscles spinoreticular tract primary somatosensory anterior horn spinothalamic tract contralateral ipsilateral prior to decussation A feather is rubbed over a section of skin on the palm of the hand, eliciting an action potential that was generated from neurons associated with Action potentials traveling in the posterior root reach the synapse with second order neurons located in the of the spinal cord. The transfer of electrical signals between first and second order neurons occurs Second order neurons ascend the spinal cord in the Arriving on the transferred to third order neurons. side of the thalamus, action potentials are Third order neurons arrive in the comprehension occurs. Reset cortex, where consciousarrow_forwardParts of the trigeminal nerve: Question 18 options: Are found within the following: foramen ovale, foramen rotundum, & optic canal Transmit motor information only through its opthalmic and maxillary branches Provide motor input to the muscles of facial expression Provide sensory information from the brain to the teeth None of the above are correctarrow_forward
- When describing the reflex arcs and the neural pathways involved we often limit ourselves to the nerves carrying information from the muscle or tendon to the spinal cord and back. However, it should be clear from our ability to feel the tendon tap as well as the results from the Jendrassik’s maneuver test that it isn’t this simple. What other neural connections must be present ?arrow_forwardComplete the following statements to describe cutaneous and proprioceptors. Not all choices will be used.arrow_forwardDo you think the patellar reflex would be inhibited or enhanced by actively contracting the quadriceps muscle group? With an understanding of how muscle spindle fibers work, explain how active contraction of a muscle might affect the myotactic reflex. [hint: try to elicit a knee jerk reflex when someone is doing a leg lift]arrow_forward
- The nerve for sensation to the skin of the palm and known to be compressed in carpal tunnel syndrome is the _________.arrow_forwardYou have a patient that has lost all sensation in the muscles innervated by the L5 level of the spinal cord but can still move those muscles. What is the most likely cause of the deficit? Cut L5 Ventral root Cut L5 spinal nerve Cut L5 dorsal root Spinal cord injury at the L5 level 2. You place a recording electrode into a Group Ia afferent and a separate recording electrode into a Group Ib afferent from the biceps muscle. You also place a length transducer and a force transducer on the muscle. Draw what you would expect to record from all of your recording devices at rest for 5 s, during a twitch contraction, and then 5 s after the contraction. Be sure to label all axes of your recordings. 3. A mouse you just discovered has either ALS or myasthenia gravis. Assuming that you can do invasive testing on this mouse, describe how you would figure out which disease the mouse has. You must use some electrophysiological recording in your test. Be specific about what exactly you are…arrow_forwardSin Young incorrectly classified proprioception as general somatic motor because it refers to the innervation of muscles. Actually, proprioception is general somatic sensory. Explain why.arrow_forward
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