Unit 5: Anatomy of Skeletal Muscle and Muscle Fibers

Muscle

1

Fascicle

2

Muscle fiber

3

Myofibril

4

Blood vessels

5

Epimysium

1

Tendon

2

Bone

3

Endomysium

4

Fascicle

5

Muscle fiber

6

Blood vessel

7

Perimysium

8

Sarcolemma

1

Myofibril

2

Nucleus

3

Light (I) band

4

Dark (A) band

5

Z Disc

6

H zone

7

Z Disc

8

Thin (actin) filament

9

Thick (myosin) filament

10

I band

11

A band

12

I band

13

M line

14

Sarcomere

15

Sarcomere

1

M Line

2

Z disc

3

Z disc

4

Thin (actin) filament

5

Thick (myosin) filament

6

Thin filament

1

Bare Zone

2

Thick filament

3