Muscular System Review 1

Front

What is the motor innervation of the trapezius muscle?

Back

Accessory nerve

Front

What is the function of the serratus anterior muscle?

Back

Rotates and protracts the scapula

Front

What posterior abdominal muscle is shown in yellow?

Back

Iliacus

Front

Which nerve provides motor innervation to the diaphragm?

Back

Phrenic nerve

Front

Which function can be assessed to test the accessory nerve?

Back

Shoulder shrug

Front

What is the primary function of the trapezius muscle?

Back

Elevates, retracts, and rotates the scapula.

Front

What role does the serratus anterior play in shoulder movement?

Back

It helps in the upward rotation and protraction of the scapula.

Front

What is the origin of the iliacus muscle?

Back

Iliac fossa of the pelvis.

Front

What is the insertion point of the psoas major muscle?

Back

Lesser trochanter of the femur.

Front

What is the function of the quadratus lumborum muscle?

Back

Stabilizes the pelvis and lumbar spine.