Session 6

Question 1

What are the following parts of muscles:

Sarcolemma
Sarcoplasm
Sarcosome
Sarcomere
Sarcoplasmic reticulum

Answer 1

Sarcolemma: The outer membrane of a muscle cell
Sarcoplasm: The cytoplasm of a muscle cell
Sarcosome: The mitochondrion
Sarcomere: The contraction unit in striated muscle
Sarcoplasmic reticulum: The smooth endoplasmic
reticulum of a muscle cell

Question 2

Label this diagram, showing the components of a muscle cell

Question 3

Label this diagram of the perimysium

Question 4

What kind of muscle is the skeletal muscle?

Answer 4

a Striated muscle

Question 5

What is a striated muscle cell called?

Answer 5

A muscle fibre

Question 6

what is the plasmalemma of a muscle cell called?

Answer 6

It’s sarcolemma

Question 7

What does each muscle cell (fibre) contain?

Answer 7

• Contains numerous myofibrils

Question 8

Label in depth this diagram of the sarcomere

Question 9

What gives the A band dark staining?

Answer 9

Thick myosin filaments

Question 10

Label th peripheral nuclei nd venules in this diagram

Question 11

Label the longitudinal section of skeletal muscle under a low power TEM