Muscle Study Guide

Name: _______________________________________________________________ Date: _________ Hour: _________
Muscle Study Guide- Chapter 7
1. List the 3 types of muscles.
2. What are the 5 functions of muscles?
3. List the 3 connective tissues in a muscle and give a description of each.
4. What are the sarcolemma, sarcoplasma, and sarcoplasmic reticulum of a muscle fiber?
5. What are t-tubules and what is their purpose?
6. What are the myofibrils and what are they made of?
7. What are the 4 main proteins found in a sarcomere? Where are they found?
8. What are the terminal cisternae and what do they store?
9. Compare and contrast thin and thick filaments.
10. Compare and contrast actin and myosin.
11. What happens to the A band, I band, and Z lines of a sarcomere during contraction?
12. What is a synaptic terminal and what does it contain?
13. List the steps in an impulse start of a muscle contraction at the neuromuscular junction and list the
components involved in each.
 Example: Step 1. AP arrives at synaptic terminal
Components involved: AP & Synaptic terminal
14. What is the end result in the steps in the contraction above and how is this linked to the steps of
muscle contraction at the level of a sarcomere?
15. List the steps in muscle contraction at the level of the sarcomere
 Example: Step 1- Calcium ions bind to troponin on thin filaments & active site is
16. Compare and contrast slow and fast fibers.
17. What are the 3 reasons slow fibers are able to continue contracting for extended periods?
18. Compare and contrast red and white muscles.
19. Compare and contrast anaerobic endurance and aerobic endurance.
20. What is an origin and insertion?
21. What are the 3 main categories that muscles are split into based on their primary actions?
22. What is the difference between axial and appendicular musculature?
23. What four groups of terms are used to name the muscles in your body? Give three examples of
muscles and what each name tells you: (table 7-3,pg 218)
 Example: flexor carpi radialis longis= would be a long muscle in your near the radial bone in
your wrist that flexes
Be able to label the parts of a sarcomere.
Be able to label the 3 layers of connective tissue in a muscle.
Be able to look at a picture of a neuromuscular junction and label everything.
Know all the ‘need to know’ muscles from the handouts in class.