ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303090
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 12, Problem 4RAC
Given these components of a reflex arc:
(1) effector organ (4) sensory neuron
(2) interneuron (5) sensory receptor
(3) motor neuron
Choose the correct order an action potential follows after a sensory receptor is stimulated.
a. 5,4,3,2,1 c. 5,3,4,1,2 e. 5,3,2,1.4
b. 5,4,2,3,1 d. 5,2,4,3,1
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Given these structures:(1) collateral ganglion (3) white ramus communicans(2) sympathetic chain ganglion (4) splanchnic nerveChoose the arrangement that lists the structures in the order an action potential travels through them on the way from a spinal nerve to an effector.a. 1,3,2,4 b. 1,4,2,3 c. 3,1,4,2 d. 3,2,4,1 e. 4,3,1,2
Which 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.
Response to a stimulus within the central nervous system differs from that of a reflex arc because
a. Depolarization deos not occur along the reflex arc
b. No acetylcholine is released in the central nervous system
c. There is no interpretation of the information within the reflex arc
d. Nerve impulses travel in the central nervous system at a greater speed
Chapter 12 Solutions
ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
Ch. 12.1 - Prob. 1AYPCh. 12.1 - Name the meninges surrounding the spinal cord....Ch. 12.1 - What is the thecal sac? What two structures hold...Ch. 12.1 - Describe the arrangement of gray arid white matter...Ch. 12.1 - Where are the cell bodies of somatic motor and...Ch. 12.1 - What kinds of neurons are in the dorsal roots, in...Ch. 12.2 - Prob. 7AYPCh. 12.2 - Describe the operation of a gamma motor neuron.Ch. 12.2 - Prob. 9AYPCh. 12.2 - Prob. 10AYP
Ch. 12.2 - Prob. 11AYPCh. 12.3 - Prob. 12AYPCh. 12.3 - What is a dermatome? Why are dermatomes clinically...Ch. 12.3 - Prob. 14AYPCh. 12.3 - Describe the distribution of the ventral rami of...Ch. 12.3 - Prob. 16AYPCh. 12.3 - Prob. 17AYPCh. 12.3 - Prob. 18AYPCh. 12.3 - Name the five major nerves that emerge from the...Ch. 12.3 - Name the four major nerves that arise from the...Ch. 12.3 - Prob. 21AYPCh. 12.3 - Describe the structures innervated by the...Ch. 12.3 - Prob. 23AYPCh. 12 - Prob. 1RACCh. 12 - The structure that anchors the inferior end of the...Ch. 12 - Prob. 3RACCh. 12 - Given these components of a reflex arc: (1)...Ch. 12 - Prob. 5RACCh. 12 - Several of the events that occur between the time...Ch. 12 - Prob. 7RACCh. 12 - Prob. 8RACCh. 12 - Damage to the dorsal ramus of a spinal nerve...Ch. 12 - Prob. 10RACCh. 12 - A dermatome Is the area of skin supplied by a pair...Ch. 12 - Prob. 12RACCh. 12 - The skin on the posterior surface of the hand is...Ch. 12 - The scatic nerve is actually two nerves combined...Ch. 12 - Prob. 15RACCh. 12 - Describe how stimulation of a neuron that has its...Ch. 12 - Prob. 2CTCh. 12 - Prob. 3CTCh. 12 - Prob. 4CTCh. 12 - Prob. 5CTCh. 12 - Prob. 6CTCh. 12 - Prob. 7CT
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- NOTE THESE ARE ALL ONE QUESTION GROUP AND SHOULD BE ANSWERED AS SUCH Activation of the sympathetic nervous system __________________. A. increases the flow of watery saliva B. stimulates peristaltic contractions of the intestinal system C. allows the body to relax rather than prepare for fight or flight D. slows heartbeat and lowers blood pressure E. causes the pupils to dilate The autonomic subdivision of the vertebrate nervous system innervates all but which of the following? A. Skeletal muscles B. Intestinal muscles C. Liver D. Heart E. Pancreas The sympathetic nervous system includes the _______________. A. lumbar and sacral nerves B. cranial and sacral nerves C. cranial and thoracic nerves D. thoracic and lumbar nerves E. cervical and lumbar nerves Which of the following statements accurately defines spinal nerve? A. Cell in the deep part of the epidermis that produces the…arrow_forwardWhich muscles does the brain control (unconscientiousness)? A.smooth B.cardiac C.skeletal/striated D.non of the above E.Reflex F.involuntaryarrow_forwardIn a single reflex arc involved in the knee-jerk reflex, how many synapses are activated within the spinal cord? a.Thousands b.Hundreds c.Dozens d.Two e.Onearrow_forward
- Which lamina contain the majority of projection neurons for the spinothalamic tract in mice and rats a. II b. I & V c. III/IV d. II outer & II innerarrow_forwardNOTE THESE ARE ALL ONE QUESTION GROUP and need to be answered as such Identify the term that does NOT belong in the group. A. Parasympathetic tone B. Urinary tract C. Rapid heart rate D. Digestive tract Approximately 75% of all parasympathetic axons are located in the _______________. A. vagus nerve (X) B. oculomotor nerve (III) C. facial nerve (VII) D. glossopharyngeal nerve (IX) Which of these functions is NOT affected by parasympathetic stimulation? A. Secretion of insulin from the pancreas B. Secretion of thin, watery saliva C. Secretion of tears D. Secretion of sweat The parasympathetic division ________________________. A. is responsible for the fight-or-flight response B. mediates many reflexes that regulate the digestive, urinary, and reproductive systems C. causes an increase in metabolism D. decreases blood flow to the skinarrow_forwardA functional reflex requires a. only a sensory neuron and a motor neuron. b. a sensory neuron, the thalamus, and a motor neuron. c. the cerebral cortex and a motor neuron. d. only the cerebral cortex and the thalamus.arrow_forward
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