QuestionSBA
QuestionChoice
The long head of the biceps arises from the supraglenoid tubercle. The muscle indicated by the arrow is attached to the coracoid process.
10041158
c
Long head of the biceps
QuestionChoice
This diagram shows the anterior aspect of the arm, and the arrow points to the coracobrachialis muscle. This muscle originates from the coracoid process of the scapula and inserts on the medial surface of the mid-shaft of the humerus. The coracobrachialis assists in flexion and adduction of the arm at the shoulder joint. It is innervated by the musculocutaneous nerve, which pierces the muscle, making it an important landmark. The coracobrachialis functions primarily to stabilise the humerus during arm movement.
10041156
a
Coracobrachialis
QuestionChoice
The short head of biceps also arises from the coracoid process, however the arrow is pointing to the muscle adjacent to the biceps. Biceps brachii has two heads, the short and long head. The arrow is not pointing to the muscle in the diagram with two heads.
10041157
b
Short head of the biceps
QuestionChoice
Pectoralis minor is another muscle that has an attachment to the coracoid process of the scapula. However, this muscle arises from the third to the fifth ribs and extends laterally to insert onto the coracoid process of the scapula. The muscle in this question extends laterally from the coracoid process to the arm, so this is the coracobrachialis.
10041160
e
Pectoralis minor
QuestionChoice
Brachialis has no attachments to the scapula. The muscle in this question arises from the coracoid process of the scapula. The brachialis arises from the anterior aspect of the distal humeral shaft and inserts onto the ulnar tuberosity.
10041159
d
Brachialis
Concept
Chapter
2693
5234
Upper arm muscles
Topic
258
Upper Limb Anatomy
20530
Picture
3129
134 - Upper arm muscles (coracobrachialis).png
images/7ymcqnti1727764535854.jpg
images/7ymcqnti1727764535854_256.jpg
images/7ymcqnti1727764535854_512.jpg
pEgGCgIDhDlLk7tnL7T1Uks=
Topic
258
Upper Limb Anatomy
Name the muscle in this diagram that is labelled by the blue arrow.

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a