Axial Musculature

Front

What is the primary function of the erector spinae muscle group?

Back

The erector spinae muscle group primarily functions to extend and laterally flex the vertebral column.

Front

What is the location and function of the rectus abdominis?

Back

The rectus abdominis is located in the anterior abdominal wall and functions to flex the vertebral column and compress the abdominal contents.

Front

What role does the infraspinatus play in shoulder movement?

Back

The infraspinatus is responsible for external rotation of the shoulder joint and stabilization of the humeral head.

Front

Where is the rhomboideus major located and what is its function?

Back

The rhomboideus major is located between the scapula and the vertebral column, and it functions to retract and elevate the scapula.

Front

What is the function of the orbicularis oculi muscle?

Back

The orbicularis oculi muscle functions to close the eyelids and facilitate blinking.

Front

What are the three main parts of the erector spinae muscle group?

Back

The three main parts of the erector spinae muscle group are the iliocostalis, longissimus, and spinalis.

Front

How does the rectus abdominis contribute to core stability?

Back

The rectus abdominis contributes to core stability by providing support to the spine and pelvis during movement.

Front

What is the significance of the infraspinatus in rotator cuff injuries?

Back

The infraspinatus is significant in rotator cuff injuries as it is one of the key muscles that stabilize the shoulder joint and can be affected in such injuries.

Front

What movements are facilitated by the rhomboideus major?

Back

The rhomboideus major facilitates scapular retraction, elevation, and downward rotation.

Front

What are the facial expressions associated with the orbicularis oculi?

Back

The orbicularis oculi is associated with facial expressions such as squinting, blinking, and closing the eyes tightly.