Skeletal Muscle Structure

Which structure is H?

• Muscle fiber

• Myofibril

• Sarcomere

• Perimysium

Which structure is J?

• Myosin

• Myofibril

• Sarcomere

• Actin

The bundle of collagen fibers at the end of a skeletal muscle that attaches the muscle to bone is called a(n) ______________.

• tendon

• ligament

• myofibril

• sarcomere

The cell membrane of skeletal muscle is called the ___________.

• sarcolemma

• sarcoplasm

• sarcomere

• sarcoplasmic reticulum

Muscles have 3 layers of connective tissues, which layer is described below?

Exterior collagen layer

Connected to deep fascia

Separates muscle from surrounding tissues

• fascia

• fascicles

• epimysium

• perimysium

• endomysium

Muscles have 3 layers of connective tissues, which layer is described below?

Surrounds muscle fiber bundles (fascicles)

Contains blood vessel and nerve supply to fascicles

• fascia

• fascicles

• epimysium

• perimysium

• endomysium

Muscles have 3 layers of connective tissues, which layer is described below?

Surrounds individual muscle cells (muscle fibers)

Contains capillaries and nerve fibers

Contains satellite cells (stem cells) that repair damage

• fascia

• fascicles

• epimysium

• perimysium

• endomysium

Endomysium, perimysium, and epimysium come together at the ends of muscles to form connective tissue attachment to bone matrix. If they come together in a bundle that connects muscle to bone it is called a __________.

• fascia

• fascicles

• tendon

• aponeurosis

• nerves

Endomysium, perimysium, and epimysium come together at the ends of muscles to form connective tissue attachment to bone matrix. If they come together in a flat sheet that covers and forms the terminations and attachments of various muscles it is called an ______________.

• fascia

• fascicles

• tendon

• aponeurosis

• nerves

What is the structure labeled in the diagram below of muscle tissue?

• epimysium

• fascicle

• perimysium

• sarcolemma

• muscle cell