• When comparing skeletal muscle to cardiac muscle, why does skeletal muscle fatigue easily (try to flex a light dumbbell for a few minutes straight)? Why doesn't cardiac muscle fatigue easily (heart beats every second of your life)? • Explain the functional significance of the difference in thickness of the ventricular walls (right and left ventricles). • Briefly describe the effects of the autonomic system on the heart. How does the SA node know how to respond correctly to the sympathetic and/or parasympathetic output?
Added by Elizabeth B.
Close
Step 1
Skeletal muscle fatigue easily because it is designed for quick, powerful contractions. Skeletal muscles are under voluntary control and are used for activities such as running or lifting weights. These activities require a lot of energy and can quickly deplete Show more…
Show all steps
Your feedback will help us improve your experience
Supreeta N and 84 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
how is cardiac muscle is similar to both striated and unstriated muscle - give reason .
Himani S.
What are the similarities and differences between skeletal muscle, cardiac muscle, and smooth muscle?
Suman K.
what are the 3 differences between skeletal muscle and cardiac muscle cells? explain why in detail.
Shaiju T.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD