QuestionSBA
QuestionChoice
This describes the action of the deltoid muscle. Supraspinatus initiates, and is responsible for the first 15 degrees of abduction. The arrow is pointing at the supraspinatus muscle.
10041130
e
Abduction of the shoulder after the first 15 degrees
QuestionChoice
This is the action of infraspinatus and teres minor; these are two of the rotator cuff muscles. Infraspinatus originates from the infraspinous fossa and teres minor originates from the posterior surface of the scapula.
10041127
b
Laterally rotates the arm
QuestionChoice
The arrow is pointing to the supraspinatus muscle. This is one of the rotator cuff muscles that originates in the supraspinous fossa. It acts to initiate abduction for the first 15 degrees.
10041126
a
Initiates abduction of the shoulder. It is responsible for the first 15 degrees of abduction.
QuestionChoice
This action is produced by the levator scapulae. However, it is not visible in this image and it is located in the posterior triangle of the neck. It arises from the transverse processes of the vertebrae C1-C4 and attaches to the medial border of the scapula.
10041129
d
Elevation of the scapula
QuestionChoice
The subscapularis medially rotates the arm. This muscle originates from the subscapular fossa.
10041128
c
Medially rotates the arm
Concept
Chapter
2693
5244
Shoulder muscles
Topic
258
Upper Limb Anatomy
20524
Picture
3123
128 - Shoulder muscles (Supraspinatus).png
images/hsnctr481727764512839.jpg
images/hsnctr481727764512839_256.jpg
images/hsnctr481727764512839_512.jpg
okgGCwKvOMdUV4VnBnU1YFY=
Topic
258
Upper Limb Anatomy
What is the action of the blue indicated by the blue arrow?

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a