Muscular and Skeletal System Quiz

The latissimus dorsi muscle is located in the mid to lower back, extending to the sides and wrapping around the bottom of the ribcage.

The shoulder joint consists of the humerus bone of the arm and the scapula bone of the shoulder blade.

A joint is the point where two or more bones are connected, allowing for movement and flexibility.

<p>The rotator cuff muscles are located in the shoulder and are responsible for stabilizing and controlling the movements of the shoulder joint. They consist of four muscles: supraspinatus, infraspinatus, teres minor, and subscapularis. Their main function is to support and facilitate the rotation and abduction of the arm.</p> Signup and view all the answers

<p>Synovial joints are characterized by the presence of a joint cavity filled with synovial fluid, which allows for smooth movement between the articulating bones. Examples of synovial joints include the hinge joint (elbow), ball-and-socket joint (shoulder and hip), pivot joint (between the radius and ulna), condyloid joint (wrist), saddle joint (thumb), and gliding joint (vertebrae). These joints enable various types of movement such as flexion, extension, abduction, adduction, and rotation.</p> Signup and view all the answers

<p>The skeletal system plays a crucial role in protecting vital organs and providing structural support for the body. For example, the cranium protects the brain, the ribs protect the heart and lungs, and the vertebrae protect the spinal cord. Additionally, the pelvis supports the weight of the upper body and provides attachment points for muscles, while the femur and tibia support body weight and facilitate movement.</p> Signup and view all the answers