LABORATORY MANUAL FOR HUMAN ANATOMY & PH
4th Edition
ISBN: 9781260254426
Author: Martin
Publisher: MCG
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Textbook Question
Chapter 29, Problem 2.4A
Effectors of somatic reflex arcs are __________________________ muscles.
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The biceps reflex tests a muscle spindle reflex arc (like the patellar reflex). The biceps brachii is innervated by the musculocutaneous nerve and the triceps brachii is innervated by the radial nerve. When the biceps tendon is tapped with a hammer, action potential generation ___________ in the musculocutaneous nerve and _____________ in the radial nerve.
Select one:
a. Increases; decreases
b. Decreases; increases
c. Decreases; decreases
d. Increases; increases
Fill in the blank:
The P wave corresponds to depolarization of the muscle fibers of the _______________________.
Answer the following for each reflex
Reflex
Expected Response
Nerve Being Tested
• Patellar reflex
________________________
____________________
• Achilles tendon reflex
________________________
____________________
• Plantar reflex (for adult)
________________________
____________________
• Biceps tendon reflex
________________________
____________________
• Consensual light reflex
________________________
____________________
• Ciliospinal reflex
________________________
____________________
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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 extensionarrow_forwardFill in the blank: The T wave corresponds to repolarization of the muscle fibers of the _______________________.arrow_forwardIf a muscle has the word hallucis in its name, it must cause movement of the - ____________________________________arrow_forward
- Give a labeled illustration of a simple reflex arc with its components of the patella tendon tap reflex/knee jerk reflex.arrow_forwardWhat changes would occur in the knee-jerk reflex after the destruction of thegamma motor neurons?arrow_forwardFill in the blank: The effector of the knee-jerk reflex is the _______________________ muscle.arrow_forward
- A mixed nerve contains both _______________ and _______________ fibers.arrow_forwardIs the stretch reflex monosynaptic or polysynaptic? Explainarrow_forwardA student tested their patellar tendon (knee-jerk) reflex normally and with the JENDRASSIK MANEUVER (clasping their hands together and attempting to pull them apart). While performing the Jendrassik maneuver, their reflex response was TWICE AS HIGH when compared to the control condition. Explain.arrow_forward
- View the University of Michigan WebScope at http://virtualslides.med.umich.edu/Histology/Basic%20Tissues/ Nervous%20Tissue/068_HISTO_40X.svs/view.apml (http://openstaxcollege.org/l/nervetrunk) to explore the tissue sample in greater detail. With what structures in a skeletal muscle are the endoneurium, perineurium, and epineurium comparable?arrow_forwardBoth the withdrawal reflex and the Golgi tendon reflex involve sensory signals that ultimately control the same type ofmotor neurons and both are protective. Explain how one reflex can cause muscle contraction while the other causes musclerelaxation.arrow_forwardFill in the blank: A knee-jerk reflex employs only _______________________ and motor neurons.arrow_forward
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