Weight: 5%
Minimum Pass Grade: 50%
Each question is worth 10 marks.
1. Name the type of joint, and list the movements permitted at the shoulder joint. Under each
movement’s name, list the names of the muscles responsible for each of these movements along with
descriptions of their bone insertion.
Answer:
The shoulder joint is a synovial ball and socket joint.
Flexion
-Clavicular head of Pectoralis major
o Greater tubercle and lateral lip of intertubular sulcus of humerus
-Anterior fibers of Deltoid
o Deltoid tuberosity of humerus
-Coracobrachialis
o Middle of medial surface of shaft of humerus
Extension
-Sternocostal head of Pectoralis major
o Greater tubercle and lateral lip of intertubular sulcus of humerus
-Latissimus Dorsi
o Intertubercular sulcus of humerus
-Posterior fibers of Deltoid
o Deltoid tuberosity of humerus
-Teres major
o Medial lip of intertubercular sulcus of humerus
-Teres minor
o Greater tubercle of humerus
Abduction
-Lateral fibers of Deltoid
o Deltoid tuberosity of humerus
-Supraspinatus (aids deltoid)
Assignment 2 :: Biology 235: Human Anatomy and Physiology 1