Muscle Exam Review

1
Muscle Exam Review

• Exam February 1st

2
Muscle Groups

• Explain prime mover, synergist, antagonist and
  fixator roles in muscle contraction
• Give an example of a group of muscles that work
  together. Indicate which motion you are showing
  (flexing, extending, etc.)
• Name the muscles and their roles in your motion
  modeled.

3
What is really contracting?

• Describe the hierarchy between myofibrils,
  myofibers, fascicles, and muscles
• Describe the location of endomysium, epimysium
  and perimysium

4
Parts of a Myofiber

• Draw a myofiber
• Label the following parts
• sarcolemma
• sarcoplasm
• sarcoplasmic reticulum
• nuclei
• myofibrils

5
Sarcomeres

• Describe the role that a sarcomere has in muscle
  contraction
• Draw a sarcomere and label its parts
• Actin
• Myosin
• Z lines
• H zone
• A zone
• I zone
• Describe how a sarcomere shortens

6
Neuromuscular Junctions

• Draw a neuromuscular junction and label the
  following parts
• synaptic cleft
• neuron
• myofiber
• neurotransmitter
• protein channels

7
Skeletal Muscles

• Name and locate the skeletal muscles we
  learned in class. Know their names and do not
  rely on a word bank you wont have one for the
  test.

8
Muscle Shapes

• Describe all of the shapes of muscles