Muscle Structure and Function

Front

Which protein is responsible for forming the thin filaments in muscle fibers?

Back

Actin

Front

The basic functional unit of skeletal muscle tissue is the: Myofibril, Sarcomere, Z-line, Muscle fiber

Back

Sarcomere

Front

Which type of muscle tissue is found in the walls of blood vessels? Options: Cardiac muscle, Skeletal muscle, Smooth muscle, Striated muscle

Back

Smooth muscle

Front

The sliding filament theory explains: How muscles contract and relax

Back

How muscles contract and relax

Front

Which muscle type is under conscious control?

Back

Voluntary muscle

Front

Myosin molecules form what are known as: Z-lines, Thick filaments, Thin filaments, I-bands

Back

Thick filaments

Front

What type of muscle tissue has intercalated discs?

Back

Cardiac muscle

Front

Tendons primarily consist of: Muscle tissue, Nervous tissue, Collagen fibers, Blood vessels

Back

Collagen fibers

Front

Which muscle type is found in the digestive tract? Options: Skeletal muscle, Striated muscle, Smooth muscle, Cardiac muscle

Back

Smooth muscle

Front

During muscle contraction, which statement is true? Options: The H zone increases in size, The I band gets wider, The A band length stays constant, The sarcomere lengthens

Back

The A band length stays constant