What is the glenoid surface?

The word glenoid is pronounced /ˈɡliːnɔɪd/ or /ˈɡlɛnɔɪd/ (both are common) and is from Greek: gléne, “socket”, reflecting the shoulder joint’s ball-and-socket form. It is a shallow, pyriform articular surface, which is located on the lateral angle of the scapula.

Is the glenoid cavity and articular surface?

The articular surfaces are the glenoid cavity on the scapula and the humeral head. Four muscles and their tendinous attachments stabilize the shoulder: the supraspinatus, infraspinatus, subscapularis, and teres minor.

Where is the glenoid cavity?

scapula
part of scapula …presents a shallow cavity, the glenoid cavity, which articulates with the head of the bone of the upper arm, the humerus, to form the shoulder joint. Overhanging the glenoid cavity is a beaklike projection, the coracoid process, which completes the shoulder socket.

What is found in the glenoid cavity?

Glenoid cavity articulates with the humerus of the upper limb by the glenohumeral joint. It is a type of synovial joint known as the ball and socket joint. The biceps tendon helps in holding humerus at the place in the glenoid cavity.

What is the function of the glenoid cavity?

The glenoid cavity of the scapula (shoulder bone) articulates with the head of the humerus (upper-arm bone) at the shoulder joint, enabling the arm to move relative to the torso.

How many surfaces does the scapula have?

two surfaces
The scapula has three angles (superior/medial, lateral, inferior), three borders (medial, lateral/axillary, and superior), and two surfaces (ventral and dorsal). The scapula has three processes: the acromion, the spine, and the coracoid process.

What bones make up glenoid cavity?

The end of the humerus or upper arm bone forms the ball of the shoulder joint. An irregular shallow cavity in the scapula called the glenoid cavity forms the socket for the head of the humerus to fit in. The two bones together form the glenohumeral joint, which is the main joint of the shoulder.

What bones make up the glenoid cavity?

An irregular shallow cavity in the scapula called the glenoid cavity forms the socket for the head of the humerus to fit in. The two bones together form the glenohumeral joint, which is the main joint of the shoulder. The scapula is a flat triangular shaped bone that forms the shoulder blade.

What is the costal surface of scapula?

The front of the scapula (also known as the costal or ventral surface) has a broad concavity called the subscapular fossa, to which the subscapularis muscle attaches. The medial two-thirds of the fossa have 3 longitudinal oblique ridges, and another thick ridge adjoins the lateral border; they run outward and upward.

How many surfaces borders and angles does a scapula have?

The scapula has three angles (superior/medial, lateral, inferior), three borders (medial, lateral/axillary, and superior), and two surfaces (ventral and dorsal).