Muscle Tissue SCH1134 EXAM

In a sarcomere, thick filaments are linked laterally by proteins of the

M line.

A sarcomere extends from one ______ to another _______

Z line, Z line

The skeletal muscle complex known as the triad consists of

a transverse tubule and two terminal cisternae.

Intercalated discs and pacemaker cells are characteristic of

cardiac muscle tissue.

Muscle tissue, one of the four basic tissue groups, consists chiefly of cells that are highly specialized for

contraction.

Which of the following is not a function of smooth muscle tissue?

forcing blood from the heart into the major arteries

Tissue that is specialized for contraction is ________ tissue.

muscle

Interactions between actin and myosin filaments of the sarcomere are responsible for

muscle contraction.

A muscle cell is also known as a

myoblast

Cross-bridges are portions of

myosin molecules.

Which of the following best describes the term titin?

protein that accounts for elasticity of resting muscle

Which of the following best describes the term sarcomere?

repeating unit of striated myofibrils

The plasma membrane of skeletal muscle is called the

sarcolemma.

Epimysium surrounds

skeletal muscle

The muscle tissue that shows no striations is ________ muscle.

smooth

Which of the following best describes the term sarcoplasmic reticulum?

storage and release site for calcium ions

The types of muscle tissue include all of the following, except

striated muscle

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

tendon.

The advantage of having many nuclei in a skeletal muscle fiber is

the ability to produce large amounts of the muscle proteins needed for growth and repair.

Which of the following best describes the term Z line?

thin filaments are anchored here

Each thin filament consists of

two protein strands coiled helically around each other.