Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Question
Chapter 13.6, Problem 6QC
Summary Introduction
To review:
The reflex arcs of the following reflexes:
a. Simple stretch reflex
b. Flexion reflex
c. Gag reflex
d. Corneal blink reflex
Introduction:
There are two types of reflexes on the basis of a number of synapses that occur between the neurons involved in the arc, these involve monosynaptic reflex and polysynaptic reflex. On this basis of the type of organ in which reflex takes place, there are again two classes of the reflex arc, visceral reflex arc and somatic reflexes arc.
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1) For each of the following reflexes, detail what the sensor is, the integrator, and the effector. Also note the neuronsinvolved in the reflex (like alpha motor neuron).a. Myotatic (stretch reflex)b. Autogenic Inhibition (Golgi tendon organ reflex)c. Flexor Reflex
Name 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? _______________________
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Chapter 13 Solutions
Human Anatomy & Physiology
Ch. 13.1 - What two subclasses make up the sensory division...Ch. 13.1 - 2. What is a lower motor neuron? How are upper...Ch. 13.1 - In what ways do the somatic and visceral motor...Ch. 13.1 - What structures are found in a peripheral nerve?Ch. 13.1 - Prob. 5QCCh. 13.1 - Prob. 6QCCh. 13.1 - How are sensations detected in the PNS and...Ch. 13.1 - 8. How are motor impulses transmitted from the...Ch. 13.2 - Prob. 1QCCh. 13.2 - List the Roman numeral, origins, destinations, and...
Ch. 13.2 - List the Roman numeral, origins, destinations, and...Ch. 13.2 - List the 12 pairs of cranial nerves in ascending...Ch. 13.2 - Prob. 5QCCh. 13.3 - Prob. 1QCCh. 13.3 - What are the anterior and posterior rami, and what...Ch. 13.3 - Prob. 3QCCh. 13.3 - Prob. 4QCCh. 13.3 - Prob. 5QCCh. 13.3 - Prob. 6QCCh. 13.4 - 1. What is sensory transduction?
Ch. 13.4 - Prob. 2QCCh. 13.4 - 3. What are the three components of a typical...Ch. 13.4 - Prob. 4QCCh. 13.4 - What is the two-point discrimination threshold,...Ch. 13.4 - What is a dermatome?Ch. 13.4 - 7. Why is visceral pain often perceived as...Ch. 13.5 - 1. What are the main differences between an upper...Ch. 13.5 - 2. What is a motor neuron pool?
Ch. 13.5 - What is the general sequence of events for...Ch. 13.6 - Prob. 1QCCh. 13.6 - 2. How do intrafusal and extrafusal muscle fibers...Ch. 13.6 - Prob. 3QCCh. 13.6 - 4. How do Golgi tendon organs and muscle spindles...Ch. 13.6 - How do polysynaptic and monosynaptic reflex arcs...Ch. 13.6 - Prob. 6QCCh. 13.6 - What are some potential effects of sensory...Ch. 13.6 - How do upper and lower motor neuron disorders...Ch. 13 - Mark the following statements as true or false. If...Ch. 13 - Prob. 2CYRCh. 13 - 3. Define each of the following terms in your own...Ch. 13 - First, write the Roman numeral that corresponds to...Ch. 13 - Prob. 5CYRCh. 13 - Match the following nerves with the structures...Ch. 13 - First-order somatic sensory neurons are...Ch. 13 - Prob. 8CYRCh. 13 - Prob. 9CYRCh. 13 - 10. Merkel cell fibers, tactile corpuscles,...Ch. 13 - 11. Place the following sequence of events for the...Ch. 13 - How do upper and lower motor neurons differ?Ch. 13 - 13. List and describe the basic steps involved in...Ch. 13 - 14. The lower motor neurons that innervate...Ch. 13 - Fill in the blanks:______ detect the degree to...Ch. 13 - Which of the following is the correct order of...Ch. 13 - 17. Mark the following statements as true or...Ch. 13 - Prob. 18CYRCh. 13 - Prob. 1CYUCh. 13 - Prob. 2CYUCh. 13 - Prob. 3CYUCh. 13 - Prob. 1AYKACh. 13 - Jason presents for evaluation after a severe...Ch. 13 - 3. When Mr. Williams goes to the emergency...Ch. 13 - 4. Maria is a 3-year-old who has been diagnosed...Ch. 13 - Another feature of CIPA is anhidrosis, or the...
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- All of the following are true regarding the descending motor tracts EXCEPT which one? A. They originate in either the cerebral cortex or brainstem. B. The pathways are generally made of a two-neuron system. C. The upper motor neuron fibers target lower motor neurons of the spinal cord or cranial nerves. D. They are involved in assisting with voluntary movement.arrow_forwardFor 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_forwardAll somatic reflexes share all of the following properties except a. they are quick. b. they are monosynaptic. c. they require stimulation. d. they are involuntary. e. they are stereotyped.arrow_forward
- What type of reflex can protect the foot when a painfulstimulus is sensed?a. stretch reflexb. gag reflexc. withdrawal reflexd. corneal reflexarrow_forward50) visceral reflexes include the reflexes that empty the bladder and the rectum. a) true b) falsearrow_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_forward
- Define the term stretch reflex and describe how such reflexes are used to anatomically localize SCIarrow_forwardWhich of the following is NOT a reason why a reflex arc is faster than a normal nerve transmission? a. A reflex arc stimulates the motor neurons for an immediate reaction. b. A reflex arc does not send information to the brain to be processed. c. A reflex arc does not involve neurotransmitters. d. A reflex arc involves fewer neurons.arrow_forwardWhich of the following statements regarding sciatic nerve is correct? a. Arises from L3/4/5/S1/2 b. Emerges from the lower border of piriformis c. Most commonly divides onto common peroneal and tibial branches in the middle of the hamstring compartment d. Can be injured by intramuscular injections in the upper outer quadrant of the buttock e. Gives no branches in the gluteal compartmentarrow_forward
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