Exam 2

Question 1

What is the smallest functional unit of a muscle?

Answer 1

Sarcomere

Question 2

What 2 different-sized filaments make up the sarcomere?

Answer 2

Thick (myosin) & thin (actin)

• i-band & a-band??

Question 3

What is the primary protein of the thick filament?

Answer 3

Titin or myosin?

Question 4

What is an individual muscle cell called?

Answer 4

Muscle fiber

Question 5

What are the 3 types of muscle tissue?

Answer 5

Smooth
Cardiac
Skeletal

Question 6

What are the 4 characteristics of the muscle?

Answer 6

1. Excitable
2. Contractile
3. Extensible (stretchable)
4. Elastic

Question 7

What are the 4 main functions of the muscle?

Answer 7

1. Produce movement
2. Posture
3. Stabilize joints
4. Produce/generate heat