WorksheetsMuscles HW 4.1-4.4
Total questions: 25
Worksheet time: 13mins
The part of the sarcomere that C (Blue/ Thin Filament) refers to is the?
Which label is the muscle fiber?
A
B
C
D
Which label is the myofibril?
A
B
C
D
What is another name for #9 (cell membrane for muscle cell)?
Sarcomere
Sarcolemma
Myofibril
Myofiber
Found attached to bones throughout the body
smooth
cardiac
skeletal
all
Found in the heart
smooth
cardiac
skeletal
all
Found in the walls of hollow organs; also called visceral
smooth
cardiac
skeletal
all
Name the following in order from largest to smallest:
muscle, muscle fascicle, muscle cell, myofibril, filaments
muscle, muscle fascicle, muscle cell, filaments, myofibril
muscle, muscle cell, muscle fascicle, myofibril, filaments
muscle, muscle cell, muscle fascicle, filaments, myofibril
What is the length between Z-lines of an actin molecule called?
fascicle
sarcomere
myosin binding site
sarcoplasmic length
____________ attaches to actin to form the cross bridge.
Troponin
Tropomyosin
Myosin
Calcium
The contractile unit of a muscle is called the:
sarcomere
motor unit
fascicle
myofibril
A bundle of muscle fibres is known as a:
sarcomere
fiber
fascicle
Tendon
Which is multinucleated?
Cardiac
Smooth
Skeletal
The connective tissue wrapper that binds together multiple fascicles is called _______.
epimysium
fascia
endomysium
myofilaments
