There are three borders of the scapula:
The superior border is the shortest and thinnest; it is concave, and extends from the superior angle to the base of the coracoid process.
It is referred to as the cranial border in animals.

At its lateral part is a deep, semicircular notch, the scapular notch, formed partly by the base of the coracoid process.
This notch is converted into a foramen by the superior transverse scapular ligament, and serves for the passage of the suprascapular nerve; sometimes the ligament is ossified.

The adjacent part of the superior border affords attachment to the omohyoideus.

The axillary border (or "lateral border") is the thickest of the three.
It begins above at the lower margin of the glenoid cavity, and inclines obliquely downward and backward to the inferior angle.
It is referred to as the caudal border in animals.

It begins above at the lower margin of the glenoid cavity, and inclines obliquely downward and backward to the inferior angle.

Immediately below the glenoid cavity is a rough impression, the infraglenoid tuberosity, about 2.5 cm (1 in).
in length, which gives origin to the long head of the triceps brachii; in front of this is a longitudinal groove, which extends as far as the lower third of this border, and affords origin to part of the subscapularis.

The inferior third is thin and sharp, and serves for the attachment of a few fibers of the teres major behind, and of the subscapularis in front.

The medial border (also called the vertebral border or medial margin) is the longest of the three borders, and extends from the superior angle to the inferior angle.
In animals it is referred to as the dorsal border.

Four muscles attach to the medial border.
Serratus anterior has a long attachment on the anterior lip.
Three muscles insert along the posterior lip, the levator scapulae (uppermost), rhomboid minor (middle), and to the rhomboid major (lower middle).
There are three borders of the scapula:
The superior border is the shortest and thinnest; it is concave, and extends from the superior angle to the base of the coracoid process. It is referred to as the cranial border in animals.
At its lateral part is a deep, semicircular notch, the scapular notch, formed partly by the base of the coracoid process. This notch is converted into a foramen by the superior transverse scapular ligament, and serves for the passage of the suprascapular nerve; sometimes the ligament is ossified.
The adjacent part of the superior border affords attachment to the omohyoideus.
The axillary border (or "lateral border") is the thickest of the three. It begins above at the lower margin of the glenoid cavity, and inclines obliquely downward and backward to the inferior angle. It is referred to as the caudal border in animals.
It begins above at the lower margin of the glenoid cavity, and inclines obliquely downward and backward to the inferior angle.
Immediately below the glenoid cavity is a rough impression, the infraglenoid tuberosity, about 2.5 cm (1 in). in length, which gives origin to the long head of the triceps brachii; in front of this is a longitudinal groove, which extends as far as the lower third of this border, and affords origin to part of the subscapularis.
The inferior third is thin and sharp, and serves for the attachment of a few fibers of the teres major behind, and of the subscapularis in front.
The medial border (also called the vertebral border or medial margin) is the longest of the three borders, and extends from the superior angle to the inferior angle. In animals it is referred to as the dorsal border.
Four muscles attach to the medial border. Serratus anterior has a long attachment on the anterior lip. Three muscles insert along the posterior lip, the levator scapulae (uppermost), rhomboid minor (middle), and to the rhomboid major (lower middle).
Scapula