Which muscle is primarily responsible for shoulder abduction?

Question

A) Pectoralis major
B) Latissimus dorsi
C) Deltoid
D) Trapezius
2. Which of the following muscles is NOT part of the rotator cuff?
A) Supraspinatus
B) Infraspinatus
C) Teres major
D) Subscapularis
3. The glenohumeral joint is a type of:
A) Hinge joint
B) Ball-and-socket joint
C) Pivot joint
D) Saddle joint
4. Which ligament stabilizes the acromioclavicular joint?
A) Coracoacromial ligament
B) Glenohumeral ligament
C) Coracoclavicular ligament
D) Costoclavicular ligament
5. Which muscle assists in both shoulder flexion and extension?
A) Deltoid
B) Supraspinatus
C) Pectoralis minor
D) Serratus anterior
6. Which ligament connects the acromion to the clavicle?
A) Acromioclavicular ligament
B) Coracoclavicular ligament
C) Glenohumeral ligament
D) Costoclavicular ligament
7. The primary function of the supraspinatus muscle is:
A) Shoulder adduction
B) Shoulder abduction
C) Shoulder internal rotation
D) Shoulder extensio
8. The subscapularis muscle performs which main action?
A) Shoulder abduction
B) Shoulder internal rotation
C) Shoulder extension
D) Shoulder flexion
9. Which muscle originates from the coracoid process?
A) Pectoralis major
B) Biceps brachii (short head)
C) Latissimus dorsi
D) Trapezius
10. Which ligament helps prevent superior dislocation of the humeral head?
A) Glenohumeral ligament
B) Coracoacromial ligament
C) Acromioclavicular ligament
D) Costoclavicular ligament

Answer 1

Here are the answers to your questions:

1. Which muscle is primarily responsible for shoulder abduction? C) Deltoid

2. Which of the following muscles is NOT part of the rotator cuff? C) Teres major

3. The glenohumeral joint is a type of: B) Ball-and-socket joint

4. Which ligament stabilizes the acromioclavicular joint? C) Coracoclavicular ligament

5. Which muscle assists in both shoulder flexion and extension? A) Deltoid

6. Which ligament connects the acromion to the clavicle? A) Acromioclavicular ligament

7. The primary function of the supraspinatus muscle is: B) Shoulder abduction

8. The subscapularis muscle performs which main action? B) Shoulder internal rotation

9. Which muscle originates from the coracoid process? B) Biceps brachii (short head)

10. Which ligament helps prevent superior dislocation of the humeral head? B) Coracoacromial ligament

Let me know if you need further clarification on any of these points!