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Question 1
Which nerve innervates the latissimus dorsi?
- Thoracodorsal nerve (C6-C8)
- Dorsal scapular nerve (C5)
- Long thoracic nerve (C5-C6)
- Accessory nerve (XI)
Question 2
Which structure inserts on the floor of the bicipital groove of the humerus?
- Latissimus dorsi
- Pectoralis major
- Subclavius
- Rhomboid major
Question 3
What is the insertion of pectoralis major?
- Lateral lip of the bicipital groove
- Floor of the bicipital groove
- Medial border of the scapula
- Superior surface of the first rib
Question 4
Which nerve innervates the serratus anterior?
- Long thoracic nerve (C5, C6)
- Thoracodorsal nerve (C6-C8)
- Medial pectoral nerve (C8, T1)
- Accessory nerve (XI)
Question 5
What is the insertion of the rhomboid muscles?
- Medial border of the scapula
- Lateral border of the scapula
- Coracoid process
- First rib
Question 6
What are the dynamic actions of subclavius?
- Depression of the clavicle and very accessory inspiration
- Elevation of the clavicle and forced expiration
- Protraction and lateral rotation of the scapula
- Adduction and medial rotation of the humerus
Question 7
What is the origin of levator scapulae?
- Transverse processes of C1 to C4
- Spinous processes of C7 and T1
- Spinous processes of T1 to T4
- Anterior parts of ribs 3 to 5
Question 8
Which nerve innervates pectoralis minor?
- Medial pectoral nerve (C8, T1)
- Lateral pectoral nerve (C5-C7)
- Thoracodorsal nerve (C6-C8)
- Dorsal scapular nerve (C5)
Question 9
The subclavius inserts on the superior surface of the first rib (anterior part).
- True
- False
Question 10
The serratus anterior is innervated by the dorsal scapular nerve.
- True
- False
Question 11
The latissimus dorsi is innervated by the __________ nerve.
Fill in the blank
Question 12
The trapezius is innervated by the accessory nerve, also called cranial nerve __________.
Fill in the blank
Question 13
When the sternocleidomastoid contracts on both sides, what is the result?
- Flexion of the neck with slight extension of the head
- Extension of the neck with slight flexion of the head
- Contralateral inclination of the head
- Ipsilateral rotation of the head
Question 14
Which statement describes the unilateral action of the sternocleidomastoid?
- It rotates the head to the opposite side and inclines it to the same side
- It rotates the head to the same side and inclines it to the opposite side
- It rotates and inclines the head to the same side
- It flexes the neck and extends the head only
Question 15
Which scapular movement is produced by the upper trapezius?
- Lateral (upward) rotation of the scapula
- Medial (downward) rotation of the scapula
- Anterior tilt of the scapula
- Protraction of the scapula
Question 16
Which movement of the head does the upper trapezius produce?
- Rotation of the head to the contralateral side
- Rotation of the head to the ipsilateral side
- Contralateral inclination of the head
- Flexion of the head
Question 17
The upper trapezius elevates the shoulder girdle, and this can occur with one or both sides contracting.
- True
- False
Question 18
The upper trapezius originates from which structures?
- The spinous processes of C1 to C7 and the nuchal ligament
- The spinous processes of C7 to T4
- The spinous processes of T4 to T10
- The superior surface of the medial third of the clavicle
Question 19
The middle trapezius arises from the spinous processes of C7 to T4.
- True
- False
Question 20
The lower trapezius arises from the spinous processes of ______.
Fill in the blank
Question 21
When the arm is the fixed point, what are the actions of the latissimus dorsi?
- Ipsilateral inclination of the trunk, elevation of the pelvis, and accessory deep inspiration
- Contralateral inclination of the trunk, depression of the pelvis, and accessory deep inspiration
- Contralateral rotation of the head and elevation of the shoulder girdle
- Adduction and medial rotation of the humerus only
Question 22
When the trunk is the fixed point, which action does the latissimus dorsi have on the humerus?
- Medial rotation of the humerus
- Lateral rotation of the humerus
- Abduction of the humerus
- Upward elevation of the humerus
Question 23
What is the function of the subclavius?
- It stabilizes the costoclavicular relationship (coaptation of the sternoclavicular joint) and reinforces the costoclavicular ligament
- It produces lateral rotation of the scapula
- It extends the head and neck
- It adducts and medially rotates the humerus
Question 24
Where does the clavicular head of the sternocleidomastoid originate?
- The superior surface of the clavicle, medial third, near the posterior border
- The anterior surface of the manubrium of the sternum
- The posterior surface of the clavicle, lateral third
- The spinous processes of C1 to C7
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