Pectoral Girdle and Upper Limbs

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 trunk. It consists of the clavicle (collarbone) and the scapula (shoulder blade).

Front

What is the function of the clavicle?

Back

The clavicle serves as a strut that helps stabilize the shoulder and allows for a wide range of motion in the arm. It also protects underlying neurovascular structures.

Front

What bones make up the upper limb?

Back

The upper limb consists of the humerus (upper arm), radius and ulna (forearm), carpals (wrist), metacarpals (hand), and phalanges (fingers).

Front

What is the difference between the radius and ulna?

Back

The radius is the lateral bone of the forearm, located on the same side as the thumb, while the ulna is the medial bone, located on the same side as the little finger.

Front

What is the role of the scapula in arm movement?

Back

The scapula provides attachment points for muscles that facilitate arm movement and helps in the mobility of the shoulder joint.

Front

What are carpals?

Back

Carpals are the eight small bones that make up the wrist, allowing for flexibility and movement of the hand.

Front

What are metacarpals?

Back

Metacarpals are the five long bones in the hand that connect the wrist to the fingers.

Front

What are phalanges?

Back

Phalanges are the bones of the fingers and toes. Each finger has three phalanges (proximal, middle, distal), while the thumb has two (proximal and distal).

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 serves as an attachment for muscles and ligaments.

Front

What is the coracoid process?

Back

The coracoid process is a small hook-like structure on the scapula that provides attachment for muscles and ligaments, playing a role in shoulder stability.