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Muscle Structure Definitions

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

Muscle Fiber Membrane

a)

Sarcolemma

b)

Sarcoplasm

c)

Sarcoplasmic Reticulum

2.

thin filaments

a)

actin

b)

myosin

3.

thick filaments

a)

actin

b)

myosin

4.

(A) bands are associated with

a)

Dark, thick and myosin

b)

Dark, thin, and actin

c)

Dark, thin, and myosin

d)

Light, thin and actin

5.

(I) Bands are most associated with?

a)

Thin, light, and actin

b)

Thick, light, and actin

c)

Thick, dark, and myosin

d)

Thin, light, and myosin

6.

Endomysium surrounds the

a)

Muscle Fiber

b)

Perimysium

c)

Epimysium

7.

inner material surrounding fibers and provides glucose for muscular activity

a)

Sarcolemma

b)

Sarcoplasm

c)

Sarcoplasmic Reticulum

d)

Myofibrils

8.

separates and surrounds fascicles

a)

EPIMYSIUM

b)

PERIMYSIUM

c)

ENDOMYSIUM

9.

outermost layer, surrounds entire muscle.

a)

EPIMYSIUM

b)

PERIMYSIUM

c)

ENDOMYSIUM

10.

Bundle of Muscle Fibers is called?

a)

Fascicles

b)

Fascia

c)

Myofibril

11.

individual muscles are separated by

a)

Fascilcles

b)

Fascia

c)

Fibers

d)

Epimysium

12.

these contain contractile elements of skeletal muscle cells

a)

myofibrils

b)

sarcolemma

c)

sarcomere

13.

the region between two z-lines is called

a)

sarcolemma

b)

myofibrils

c)

sarcoplasm

d)

sarcomeres

14.

Each (I) Band has a midline interruption called the

a)

Z Line

b)

M Line

c)

H Zone

15.

Each H zone is bisected vertically by a dark line called the

a)

z line

b)

m line

16.

myofibrils are made up of

a)

myofilaments

b)

endomysium

c)

perimysium

d)

epimysium

17.

Each dark A band has a lighter region in its midsection called the

a)

H Zone

b)

M Zone

c)

Z Zone