pass short answer practice

Explain the role of the skeletal system

Provides structure, support, protects organs, and works with muscles to allow movement

Explain the role of the muscular system

Muscles contract and relax to move bones at joints

Explain the role of the cardiovascular system

Transports oxygen, nutrients, and removes waste products around the body

Explain the role of the respiratory system

Brings oxygen into the body and removes carbon dioxide

Explain how the muscular and skeletal systems work together

Muscles contract and pull on bones at joints to create movement

Explain how the cardiovascular and respiratory systems work together

The respiratory system brings in oxygen and the cardiovascular system transports it to the muscles

Describe how all body systems work together during exercise

The respiratory system supplies oxygen, the cardiovascular system transports it, muscles use it to contract, and the skeleton allows movement

Define an agonist muscle

The muscle responsible for causing a movement

Define an antagonist muscle

The muscle that opposes the movement

Explain the relationship between agonist and antagonist muscles

They work in pairs, one contracts while the other relaxes to create movement

Describe flexion

Bending a joint, decreasing the angle between bones

Describe extension

Straightening a joint, increasing the angle between bones

Describe abduction

Movement away from the midline of the body

Describe adduction

Movement toward the midline of the body

Describe rotation

Turning a body part around its axis

Identify the joint type of the knee

Hinge joint

Identify the joint type of the shoulder

Ball-and-socket joint

Identify the joint type of the neck

Pivot joint

Explain how the biceps and triceps work together

The biceps contract to bend the arm while the triceps relax, and vice versa to straighten it

Describe the function of the quadriceps

Straighten the knee joint

Describe the function of the hamstrings

Bend the knee joint

Explain why oxygen is important for muscles

Oxygen is needed to produce energy for muscle contraction

Explain what happens to breathing rate during exercise

It increases to bring more oxygen into the body

Explain what happens to heart rate during exercise

It increases to pump more oxygenated blood to muscles