Bryststemmen

Bryststemmen, also known as the pectoral girdle, is a complex anatomical structure that connects the upper limbs to the axial skeleton in vertebrates. It is composed of two main bones: the scapula and the clavicle. The scapula is a large, flat bone that forms the shoulder blade, while the clavicle is a long, slender bone that connects the scapula to the sternum, forming the collarbone. The bryststemmen provides a stable base for the shoulder joint, allowing for a wide range of motion and facilitating the movement of the upper limbs. It also plays a crucial role in protecting the underlying muscles and organs. The bryststemmen is innervated by the brachial plexus, a network of nerves that originates from the spinal cord, and is supplied by blood vessels that branch off from the subclavian artery. Variations in the bryststemmen can occur, such as the presence of a floating scapula, where the scapula is not connected to the clavicle or sternum. These variations can have implications for movement and posture.