Upper Limb and Pectoral Girdle

Front

What is the function of the pectoral girdle?

Back

The pectoral girdle connects the upper limb to the trunk and provides attachment points for muscles that move the shoulder and arm.

Front

What are the two main bones that make up the pectoral girdle?

Back

The clavicle and scapula.

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.

Front

What is the glenoid fossa?

Back

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

Front

What is the olecranon process?

Back

The olecranon process is the bony prominence of the ulna that forms the elbow.

Front

What is the anatomical position of the upper limb?

Back

In the anatomical position, the upper limb is positioned with the palms facing forward and the thumbs pointing outward.

Front

What is the role of the humerus in the upper limb?

Back

The humerus is the long bone of the upper arm that connects the shoulder to the elbow.

Front

What are the major muscles associated with the pectoral girdle?

Back

Major muscles include the trapezius, deltoid, and pectoralis major.

Front

What is the significance of the scapula's shape?

Back

The scapula's flat and triangular shape allows for a wide range of motion in the shoulder joint.

Front

How does the clavicle contribute to shoulder stability?

Back

The clavicle acts as a strut that stabilizes the shoulder and allows for the arm's full range of motion.