4.3 A&P

Front

What is the function of the Transverse Abdominis muscle?

Back

The Transverse Abdominis muscle stabilizes the pelvis and lower back before movement, and it plays a key role in core stability.

Front

Where is the External Obliques muscle located?

Back

The External Obliques are located on the sides of the abdomen, running diagonally from the lower ribs to the pelvis.

Front

What is the primary action of the Trapezius muscle?

Back

The Trapezius muscle is responsible for moving, rotating, and stabilizing the shoulder blade (scapula) and extending the neck.

Front

What movements does the Latissimus Dorsi muscle facilitate?

Back

The Latissimus Dorsi muscle facilitates shoulder adduction, extension, and internal rotation.

Front

What is the role of the Teres Major muscle?

Back

The Teres Major muscle assists in shoulder adduction, extension, and internal rotation.

Front

What are the three layers of abdominal muscles?

Back

The three layers of abdominal muscles are the External Obliques, Internal Obliques, and Transverse Abdominis.

Front

How does the Trapezius muscle contribute to posture?

Back

The Trapezius muscle helps maintain proper posture by supporting the head and neck and stabilizing the shoulder girdle.

Front

What is the innervation of the Latissimus Dorsi muscle?

Back

The Latissimus Dorsi muscle is innervated by the thoracodorsal nerve (C6-C8).

Front

What is the significance of the core muscles in physical activity?

Back

Core muscles, including the Transverse Abdominis, provide stability and support for the spine during physical activities, reducing the risk of injury.

Front

What is the anatomical position of the External Obliques?

Back

In the anatomical position, the External Obliques are located laterally on the abdomen, with fibers running downward and forward.