The Pectoral Girdle

Front

What is the pectoral girdle?

Back

The pectoral girdle, also known as the shoulder girdle, is a set of bones that connects the upper limb to the axial skeleton. It consists of the clavicle (collarbone) and the scapula (shoulder blade).

Front

What bones make up the pectoral girdle?

Back

The pectoral girdle is made up of two main bones: the clavicle and the scapula.

Front

What type of joint is formed between the clavicle and the sternum?

Back

The joint formed between the clavicle and the sternum is a saddle joint.

Front

What is the function of the scapula?

Back

The scapula provides attachment points for muscles that move the shoulder and arm, and it helps to stabilize the shoulder joint.

Front

What type of joint is the shoulder joint?

Back

The shoulder joint is a ball and socket joint, allowing for a wide range of motion.

Front

What is the role of the clavicle in the pectoral girdle?

Back

The clavicle acts as a strut that holds the shoulder away from the body, providing stability and support to the shoulder joint.

Front

What is the acromion process?

Back

The acromion process is a bony projection on the scapula that forms the highest point of the shoulder and articulates with the clavicle.

Front

What is the significance of the glenoid cavity?

Back

The glenoid cavity is a shallow socket in the scapula that articulates with the head of the humerus, forming the shoulder joint.

Front

What is the deltoid tuberosity?

Back

The deltoid tuberosity is a raised area on the humerus where the deltoid muscle attaches, aiding in arm movement.

Front

What type of joint is the elbow joint?

Back

The elbow joint is a hinge joint, allowing for flexion and extension of the forearm.