Muscular System

Front

What is the primary function of the rectus abdominalis muscle?

Back

The rectus abdominalis muscle primarily functions to flex the lumbar spine, helping in movements such as bending forward.

Front

What is the term for muscle contraction that shortens the muscle, such as during a bicep curl?

Back

Concentric contraction.

Front

What is the function of the orbicularis oculi muscle?

Back

The orbicularis oculi muscle is responsible for closing the eyelids and aiding in blinking.

Front

Identify the muscle that is located in the calf region and is responsible for plantar flexion of the foot.

Back

Gastrocnemius.

Front

What is the role of the supraspinatus muscle in shoulder movement?

Back

The supraspinatus muscle assists in the abduction of the arm and stabilizes the shoulder joint.

Front

What type of muscle contraction occurs when the muscle lengthens under tension?

Back

Eccentric contraction.

Front

What is the anatomical location of the rectus abdominalis muscle?

Back

The rectus abdominalis muscle is located in the anterior wall of the abdomen.

Front

What is the primary action of the gastrocnemius muscle?

Back

The primary action of the gastrocnemius muscle is to flex the knee and plantar flex the foot.

Front

What is the significance of the rotator cuff muscles, including the supraspinatus?

Back

The rotator cuff muscles stabilize the shoulder joint and allow for a wide range of shoulder movements.

Front

What is the role of the biceps brachii during a bicep curl?

Back

The biceps brachii contracts concentrically to flex the elbow and lift the forearm.