Human Biology : Concepts and Current Issues - With Access
7th Edition
ISBN: 9780321933904
Author: Johnson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 6, Problem 6AWK
Summary Introduction
To review:
The reason for the continued high heart rate on the first day of aerobic exercise.
Given:
An individual has just joined a class of aerobics exercise for the first time and calculates the heart rate. After the class, they notice that the rate of the heart remains high for some time and gradually falls and return to the normal state.
Introduction
Muscles are the tissue in the body that is fibrous in nature. Muscles utilize oxygen person breathe to break down the glucose molecule to produce ATP (adenosine triphosphate) and this process is known as
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Why would your heart rate increase or decrease to help maintain homeostasis when you exercise?
In conditioned athletes, the resting Heart Rate is generally much lower than in non-athletes. Why?
a-because long-term exercise reduces Cardiac Output at rest to conserve energy
b-because athletes have a smaller Stroke Volume at rest, causing Heart Rate to decrease as well
c-because long-term exercise leads to increased vagal tone which slows Heart Rate
d-because athletes have stronger ventricles and therefore a larger Stroke Volume at rest, so they require fewer bpm to achieve the same Cardiac Output
Which of the following rows describes the change in heart rate, blood flow to skin, and glucose storage that would be expected to occur immediately following stimulation of the parasympathetic nervous system?
Select one:
a.
Heart Rate
Blood Flow to Skin
Glucose Storage
Increased
Increased
Decreased
b.
Heart Rate
Blood Flow to Skin
Glucose Storage
Decreased
Decreased
Increased
c.
Heart Rate
Blood Flow to Skin
Glucose Storage
Decreased
Decreased
Decreased
d.
Heart Rate
Blood Flow to Skin
Glucose Storage
Increased
Increased
Increased
Chapter 6 Solutions
Human Biology : Concepts and Current Issues - With Access
Ch. 6 -
1. Do you think we should continue to try to...Ch. 6 - Prob. 2QCCh. 6 - Describe how muscle contraction can resist...Ch. 6 - Describe how a muscle's origin and insertion...Ch. 6 - Describe the roles of calcium in muscle...Ch. 6 -
4. Explain what causes rigor mortis.
Ch. 6 - Prob. 5CRCh. 6 - Prob. 6CRCh. 6 - Prob. 7CRCh. 6 -
8. Compare and contrast how a constant degree of...
Ch. 6 - Prob. 9CRCh. 6 - Prob. 10CRCh. 6 - Prob. 1TYCh. 6 -
2. Which of the following choices arranges the...Ch. 6 - All of the following are functions of the muscular...Ch. 6 -
4. Which of the following happens during muscle...Ch. 6 -
5. Botulism toxin inhibits the release of...Ch. 6 - The sliding filament mechanism describes the...Ch. 6 -
7. What is the first and most direct energy...Ch. 6 - As you clasp your hands in front of you and push...Ch. 6 -
9. All of the following may happen in response to...Ch. 6 - Which of the following is/are characteristic of...Ch. 6 - Which of the following is the site of calcium ion...Ch. 6 - What is the role of ATP in muscle function? a. ATP...Ch. 6 -
13. Which of the following would have motor units...Ch. 6 - Which type(s) of muscle cells can contract the...Ch. 6 - Prob. 15TYCh. 6 - Why do you think it is generally accepted medical...Ch. 6 - Prob. 2AWKCh. 6 - What would happen to a muscle if one of its...Ch. 6 - Prob. 4AWKCh. 6 - Prob. 5AWKCh. 6 - Prob. 6AWKCh. 6 - Prob. 7AWK
Knowledge Booster
Learn more about
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
- Action potentials in heart muscle cells have a prolonged plateau phase caused by ______through voltage-gated channels. A potassium entering B sodium leaving C sodium entering D calcium entering E calcium leavingarrow_forwardIf someone trains at high intensities in both aerobic and resistance exercise, which adaptation will ultimately win? How? Why?arrow_forwardExplain the concept of tetany in skeletal muscle. Can cardiac muscle be tetanized? Explain the physiological significance of your answer.arrow_forward
- During the refractory period a second action potential______. A cannot occur because voltage-gated Na+ channels are inactivated B cannot occur because the heart muscle cell has already returned to resting potential C can be initiated more easily because the threshold potential is reduced D can be initiated more easily because the calcium level in the sarcoplasm is increasedarrow_forwardWhich of the following is NOT associated with cardiac muscle contraction? Contraction requires myosin light-chain kinase activity. Electromechanical calcium release mechanism. Contraction based on the sliding filaments theory. Troponin as calcium-sensing protein. Calcium-induced calcium release mechanism.arrow_forwardDescribe why your heart rate increases with exercise. What would happen if your heart did not beat faster with exercise?arrow_forward
- If someone is on a heart-rate limiting medication, what is the best way to track exertion to ensure safety? Karvonen method Just ask questions Measure lactate threshold Rating of perceived exertionarrow_forwardCreate a cool down for soccer, Remember to cover the basic ground rules:About 10 minutes in lengthBegin at a high level of intensity and work your way down to a resting heart rateIncorporate both static and dynamic activitiesMove all relevant body partsarrow_forwardMost immediate physiological adjustments to exercise occur prior to any change in tissue metabolic demand for oxygen or nutrients. This occurs because exercise increases sympathetic nervous system activity. With your knowledge of exercise and the control of alpha motor neurons by the primary motor cortex of the brain, how does increased exercise influence the sympathetic nervous system?arrow_forward
- _____ contraction drives blood through the systemic and pulmonary circuits; outside the heart, blood pressure is highest in the _____. a. Atrial; ventricles b. Atrial; atria c. Ventricular; arteries d. Ventricular; aortaarrow_forwardWhich of the following statements best describes the differences in the regulation of cardiac and skeletal muscle contraction? The amount of contractile force actively generated by muscle cells is increased by stretch in skeletal muscle and decreased by stretch in cardiac muscle. Cardiac muscle is stimulated by motor neurons and skeletal muscle by neurones from the autonomic nervous system. Skeletal muscle contractile force is augmented by increasing the firing frequency of action potentials whereas cardiac muscle contractile force is enhanced by noradrenaline increasing calcium influx through ion channels. Ryanodine receptors in skeletal muscle are opened by a mechanism that requires calcium influx whereas in cardiac muscle membrane depolarisation alone without calcium influx is sufficient to open ryanodine receptors.arrow_forwardWhy is the gap junctions between heart muscle cells play a relevant role in producing a regular heartbeat?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
KINE 2310-Chapter 4: Philosophy of Physical Activity; Author: HBU Online Course Development;https://www.youtube.com/watch?v=8Ky6t3nvP_4;License: Standard youtube license