Which of the following shoulder flexors would be affected due to a fracture of the coracoid process?

Question

Which of the following shoulder flexors would be affected due to a fracture of the coracoid process?

BlackTom AI · Accepted Answer

Question restated: Which of the following shoulder flexors would be affected due to a fracture of the coracoid process?

Option 1: Subscapularis. This muscle is a rotator cuff muscle responsible for internal rotation of the humerus. It attaches to the subscapular fossa of the scapula, not to the coracoid process. Therefore, a coracoid fracture would not directly impair subscapularis function.

Option 2: Deltoid (Anterior portion). The anterior deltoid contributes to shoulder flexion, but it inserts on the deltoid tuberosity of the humerus, not on the coracoid process. While overall shoulder movement could be influenced by trauma, a fracture of the coracoid would not directly disrupt the anterior deltoid’s attachment or primary action.

Option 3: Coracobrachialis. This muscle originates from the coracoid process and acts to flex the shoulder. Because its attachment is precisely at the coracoid, a fracture in this bony prominence would directly involve the coracobrachialis, compromising its ability to flex the shoulder.

Option 4: Supraspinatus. This muscle initiates arm abduction and inserts on the greater tubercle of the humerus. It does not attach to the coracoid process, so a coracoid fracture would not specifically affect supraspinatus function.

Synthesis: Among the listed options, the only shoulder flexor with an attachment on the coracoid process is the coracobrachialis. Other muscles mentioned either do not attach to the coracoid or do not primarily contribute to shoulder flexion in a way that would be directly compromised by a coracoid fracture.

2261 REHSCI 1200 SEC1010 Lecture Exam 2 - Requires Respondus LockDown Browser

Which of the following shoulder flexors would be affected due to a fracture of the coracoid process?

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2261 REHSCI 1200 SEC1010 Lecture Exam 2 - Requires Respondus LockDown Browser

Which of the following shoulder flexors would be affected due to a fracture of the coracoid process?

查看解析

登录即可查看完整答案

类似问题

A muscular dystrophy patient who presents with a condition of "winged scapulae" means that they have a problem with their:

An avulsion fracture (where a tendon or muscle is torn off its attachment on a bone along with a part of the bone it attaches to) of the coracoid process of the scapula would be associated with which of the following tendons:

Most of the shoulder girdle muscles insert on the scapula.

The joint labelled #1 above is the __sternoclavicular joint __ joint and #2 is the __acromioclavicular __ joint

Which of the following structures stabilizes the tendon of the long head of the biceps as it travels through the intertubercular groove of the humerus?

An avulsion fracture (where a tendon or muscle is torn off its attachment on a bone along with a part of the bone it attaches to) of the supraglenoid tubercle would be associated with which of the following tendons:

Which of the following structures travel through the quadrangular space around the shoulder / axilla?

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希望你的学习变得更简单

The joint labelled #1 above is the sternoclavicular joint joint and #2 is the acromioclavicular joint