MUSCLE SYSTEM

Front

What is the basic unit of contraction in skeletal muscle?

Back

Sarcomere

Front

What is the thin myofilament found within a muscle fiber?

Back

Actin

Front

In the R.I.C.E treatment for strains and sprains, what does the letter 'I' stand for?

Back

Ice

Front

Which type of muscle tissue is not striated and lines blood vessels and the stomach?

Back

Smooth muscle

Front

What is the primary function of skeletal muscle?

Back

To facilitate movement of the skeleton.

Front

What are the two main types of myofilaments in muscle fibers?

Back

Actin and Myosin.

Front

What is the role of myosin in muscle contraction?

Back

Myosin heads bind to actin filaments and pull them, causing contraction.

Front

What is the function of the motor neuron in muscle contraction?

Back

To transmit signals from the nervous system to muscle fibers.

Front

What is a muscle strain?

Back

An injury to a muscle or tendon caused by overstretching.

Front

What is a muscle sprain?

Back

An injury to a ligament caused by overstretching or tearing.