EBK ANATOMY & PHYSIOLOGY
5th Edition
ISBN: 9780321888013
Author: Hoehn
Publisher: VST
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Textbook Question
Chapter 9, Problem 13RQ
Aerobic exercise results in all of the following except (a) increased cardiovascular system efficiency, (b) more mitochondria in the muscle cells, (c) increased size and strength of existing muscle cells, (d) increased neuromuscular system coordination.
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Students have asked these similar questions
To build individual muscle strength and
muscle girth (i.e. bulk up), it is best to:
O a) do resistance exercises for each
muscle at least 6 days per week
b) use medium resistance with
medium number of repetitions
O c) use heavy resistance with few
repetitions for multiple sets
d) use light resistance with many
repetitions
Muscular endurance is defined as the:
O a) ability of a muscle to contract
repeatedly over an extended
period of time
b) amount of force a muscle can
produce with a single maximal
effort
O c) ability to move the joints through
a full range of motion
O d) amount of time required to
contract a muscle completely
If you completely stopped working out
for 6 months, the following would occur:
O a) a decrease in muscle fiber type
O b) an increase in muscle fiber size
O c) an increase in muscle fiber
number
O d) a decrease in muscle fiber size
Chapter 9 Solutions
EBK ANATOMY & PHYSIOLOGY
Ch. 9 - When describing muscle, what does striated mean?Ch. 9 - Prob. 2CYUCh. 9 - How does the term epimysium relate to the role and...Ch. 9 - Which myofilaments have binding sites for calcium?...Ch. 9 - Which region or organelle-cytosol, mitochondrion,...Ch. 9 - What are the three structural components of a...Ch. 9 - What is the final trigger for contraction? What is...Ch. 9 - What prevents the filaments from sliding back to...Ch. 9 - What would happen if a muscle fiber suddenly ran...Ch. 9 - What is a motor unit?
Ch. 9 - What is happening in the muscle during the latent...Ch. 9 - Prob. 12CYUCh. 9 - When Eric returned from jogging, he was breathing...Ch. 9 - List two factors that influence contractile force...Ch. 9 - Prob. 15CYUCh. 9 - How do aerobic and resistance exercise differ in...Ch. 9 - Compare the structures of skeletal and smooth...Ch. 9 - Calcium is the trigger for contraction of all...Ch. 9 - How does the stress-relaxation response suit the...Ch. 9 - The connective tissue covering that encloses the...Ch. 9 - Prob. 2RQCh. 9 - Prob. 3RQCh. 9 - Prob. 4RQCh. 9 - Prob. 5RQCh. 9 - Contraction elicited by a single brief stimulus is...Ch. 9 - A smooth, sustained contraction resulting from...Ch. 9 - Characteristics of isometric contractions include...Ch. 9 - During muscle contraction, ATP is provided by (a)...Ch. 9 - The neurotransmitter released by somatic motor...Ch. 9 - The ions that enter the skeletal muscle cell...Ch. 9 - Myoglobin has a special function in muscle tissue....Ch. 9 - 13. Aerobic exercise results in all of the...Ch. 9 - The smooth muscle type found in the walls of...Ch. 9 - Name and describe the four special functional...Ch. 9 - Distinguish between (a) direct and indirect muscle...Ch. 9 - (a) Describe the structure of a sarcomere and...Ch. 9 - What is the importance of acetylcholinesterase in...Ch. 9 - Explain how a slight (but smooth) contraction...Ch. 9 - Explain what is meant by the term...Ch. 9 - Define and draw a motor unit.Ch. 9 - Describe the three distinct types of skeletal...Ch. 9 - True or false: Most muscles contain a predominance...Ch. 9 - Describe some cause(s) of muscle fatigue and...Ch. 9 - Define EPOC.Ch. 9 - Smooth muscle has some unique properties, such as...Ch. 9 - Lets continue our tale of Mrs. DeStephanos medical...Ch. 9 - Lets continue our tale of Mrs. DeStephanos medical...Ch. 9 - Lets continue our tale of Mrs. DeStephanos medical...Ch. 9 - Lets continue our tale of Mrs. DeStephanos medical...
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- Isometric exercise is best described as applying a force O a) with movement through a full and complete range of motion O b) while a muscle is lengthening and returning to a resting position c) without any change in length of the muscle O d) at a constant speedarrow_forwardThe three key ions in muscular contractions are .... A) sodium, calcium, chloride B) calcium, sodium, phosphate C) calcium, chloride, potassium D) sodium, potassium, calciumarrow_forward18) Which of the following is NOT correct statement regarding muscle fatigue? A) Gradual increase in effort required to maintain a constant submaximal task B) There are two types of muscle fatigues, peripheral fatigue and central fatigue C) Force declines sooner & to a greater extent than velocity D) Slow oxidative muscles are less resistant to fatigue than fast glycolytic muscles 19) Which statement is NOT correct regarding disuse atrophy and skeletal muscle? A) Protein synthesis is decreased B) Protein degradation is increased C) There is a myofiber transition towards a slower more oxidative muscle D) Anabolic hormones and growth factors cannot completely off set disuse atrophyarrow_forward
- When a muscle fiber is stimulated with repeated stimuli, the contraction force is summed due to: a) an increasing number of engine units recruit b) the number of actin / myosin bonds decreases c) increased strength of the action potential in the plasma membrane d) The Ca2 + concentration around and in the myofibrils increasesarrow_forwardSlow twitch muscle fibers are characterized by all of the following EXCEPT: O a) used in endurance type of activities O b) contract rapidly and forcefully Oc) resistant to fatigue O d) have a direct relationship to the oxidative energy systemarrow_forwardA client asks your advice on how to best prevent lean body mass loss through diet. What evidence-based recommendation can you provide to optimize muscle synthesis? Question 75 options: a) Increase your protein intake at dinner to achieve a total of 1.5 g/kg/day b) Include protein shakes with breakfast each day c) Include 20-30 g of protein with each meal throughout the day d) Choose pasta-containing meals for dinner to promote carb loading and prevent muscle wasting during overnight fastingarrow_forward
- Which of the following causes ( the state of ) rigor in skeletal muscle ?a) lack of atp b) decrease of intracellular ca2plus c) increase in intracellular ca2+ d) lack of action potential in motor neuronsarrow_forwardMuscular strength is defined as the: a) ability of a muscle to contract with maximal force O b) ability to move the joints through a full range of motion O c) ability to sustain a given level of muscular tension over time d) amount of force a muscle can produce repeatedly over 60 secondsarrow_forwardWhich of the following does NOT happen when your muscles are fatigued? A) Lactic acid buildup causes an increase in ATP production. B) Oxygen to the muscle decreases C) recovery period ‘pays back’ the oxygen debt D) ATP production decreasesarrow_forward
- Which of the following would be recruited in a muscle stimulation when contractile strength increases? A) Many small motor units with the ability to stimulate other motor units B) Motor units with the longest muscle fibers C) Motor units with larger, less excitable neurons D) Large motor units with small, highly excitable endurancearrow_forwardWhat happens to sarcomeres when actin and myosin filaments in a muscle fiber interact during the contraction phase? A) sarcomeres usually fatigue B) sarcomeres usually get shorter C) sarcomeres usually get longer D) sarcomeres stay the samearrow_forwardWhich of these is the proper sequence of these events of muscle contraction 1) Action potential propagating down into the T-tubule 2) Power stroke 3) Ca+2 is released from the sarcoplasmic reticulum 4) The tropomyosin shifts out of the way thereby exposing the active sites of the actin Question 7 options: a) 1 à 3 à 4 à 2 b) 4 à 3 à 2 à 1 c) 1 à 4 à 2 à 3 d) 3 à 1 à 4 à 2arrow_forward
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