Pectoral Girdle

Pectoral Girdle

By Andrew Nelson

Objectives

Locate and identify the bones and the major features of the bones that compose the pectoral girdle

Some text here about the topic of discussion

• Composed of 4 parts

  • Two clavicles

  • two scapulae

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​Pectoral Girdle

• Slender, rodlike with s shape at Base of the neck

• Run from manubrium, horizontally to the scapulae

• Help hold scapulae and hold shoulders in place

• Articulates the upper limb, chest, and back muscles​

Clavicles

• Shoulder Blade

• Triangular

• A "Spine" Divides the posterior portion into two parts​

• Spine leadds to acromion process where it articulates to the clavicle. Provides muscle attachments​

Scapulae

• A coracoid process curves anteriorly and inferiorly to the clavicle

• Articulates chest and upper arm muscles

• Glenoid cavity articulates with the humerus​

Scapulae

Multiple Choice

The clavicle attaches to which piece of the sternum?

• Manubrium

• Middle body

• xiphoid process

Open Ended

Which four bones comprise the pectoral girdle?