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 29, Problem 2.9A
The normal plantar reflex results in ________________________ of toes.
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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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- 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; increasesarrow_forwardThe _________________________________________ muscle spans from the ribs and sternum to the pubic bones.arrow_forwardA mixed nerve contains both _______________ and _______________ fibers.arrow_forward
- Distal to the intervertebral foramen, a spinal nerve branches into an anterior and posterior _________________ .arrow_forwardFor this set of questions you will need to stand up from the chair you are sitting in, and then sit back down. Do this slowly so that you can pay attention to what is happening, and if necessary feel the tone of the muscles in your legs as your standing and sitting (If you are lying down or standing start from a seated position, then stand, then sit). a) During the standing phase, what function is being carried out at the hip joint? b) What are the prime movers (agonists) that are responsible for this particular movement (Hint: You should be able to feel them activated)? c) During the standing phase, what function is being carried out at the knee joint? d) What are the prime movers (agonists) that are responsible for this particular movement (Hint: You should be able to feel them activated)? e) As you sit back down, you realize that some of the same muscles activated during standing are also active when going from standing to sitting. Explain?arrow_forwardFill in the blank: ______________________ muscles in the limbs are the effectors of a withdrawal reflex.arrow_forward
- The iliocostalis, longissimus, and spinalis muscles together form the _________________________arrow_forward___________ crosses the synapse between a motor neuron and a muscle fiber and is responsibile for stimulating muscle contraction.arrow_forwardThe striatum is a structure within the basal ganglia. The striatum is comprised mostly of medium spiny neurons that express either D1 receptors or D2 receptors. These neurons when active release the neurotransmitter _______arrow_forward
- Select the best answer or answers from the choices given: A patient has suffered a cerebral hemorrhage that has caused dysfunction of the precentral gyrus of his right cerebral cortex. As a result, (a) he cannot voluntarily move his left arm or leg, (b) he feels no sensation on the left side of his body, (c) he feels no sensation on his right side.arrow_forwardThe detachment of the cross-bridge during muscle contraction occurs when __________________arrow_forwardanterior surface of the thigh would indicate a lesion or compression of which nerve? femoral nerve sciatic nerve obturator nerve anterior nervearrow_forward
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