MSCT Lab Practical: Shoulder and Arm Flashcards
Identify the Joints


Supraspinatus Function
Initiates and assists with abducting of the arm
Supraspinatus Location
Suprascapular fossa
Infraspinatus Function
- External rotation
- Abduction
- Adduction
Infraspinatus Location
Infraspinatus fossa
Subscapularis Function
Internal Rotation
Subscapularis Location
Subscapular fossa
Identify Subscapularis


Identify Infraspinatus


Identify Supraspinatus


Teres Minor Function
- External rotation
- Adduction
Teres Minor Location
lateral border of the scapula
Identify Teres Minor


Biceps Brachii Compartment
Anterior
Biceps Brachii Function
- Flexes arm
- Flexes forearm
- Supinates hand
Biceps Brachii Innervation
Musculocutaneous
Brachialis Compartment
Flexes forearm
Brachialis Function
Flexes forearm
Brachialis Innervation
Musculocutaneous
Identify Brachialis


Identify Biceps Brachii long and short heads


Identify Triceps Heads
long lateral and medial


Identify Coracobrachialis


Coracobrachialis Compartment
Anterior
Coracobrachialis Function
Flexes Arm
Coracobrachialis Innervation
Musculocutaneous
Triceps Brachii Compartment
Posterior
Triceps Brachii Function
- Extends arm
- Extends forearm
Triceps Brachii Innervation
Radial
Axillary nerve innervates
- Deltoid
- Teres Minor
Upper brachial plexus injury involves these roots
C5 and C6
Lower brachial plexus injury involves these roots
C8 and T1
Identify branches


Identify Branches


Identify branches


Identify sensory locations


What innervates the trapezius?
Spinal accessory nerve or cranial nerve X1
Identify these three muscles


Dorsal scapular nerve innervates?
- Rhomboid major
- Rhomboid Minor
- Levator Scapulae
long thoracic innervates?
Serratus Anterior
Which nerve innervates the lattissimus dorsi?
Thoracodorsal nerve and artery
Identify these nerves and muscles


Identify the Erector spinae muscles


Identify


infraspinatus innervated by?
suprascapular
Supraspinatus innervates by
suprascapular nerve
teres minor innervated by
axillary nerve
deltoid innervated by?
axillary nerve
Lateral and Medial Pectoral Nerves
The lateral pectoral nerve arises from the lateral cord of the brachial plexus and is composed of branches of C5, C6, and C7. …
The medial pectoral nerve arises from the medial cord of the brachial plexus and is composed of branches of C8 and T1.
Musculocutaneou nerve continues in the forearm as?
Lateral cutaneous nerve
The thoracoacromial trunk has branches to?
- acromial
- deltoid
- clavicular
- pectoral
Identify

Thoracoacromial trunk is medial to?
Pectoralis Minor
Lateral Thoracic is lateral to?
Pectoralis minor
Lateral thoracic artery feeds
- lateral chest wall
- serratus anterior
The Subscapular artery has branches to?
subscapularis
latissimus dorsi
serratus anterior
large circumflex scapular
lateral cord terminal branches
3 listed
- lateral pectoral nerve
- lateral contribution to the median nerve
- musculocutaneous nerve
Medial Cord terminal branches
5 listed
- Medial pectoral nerve
- medial antebrachial cutaneous
- medial brachial cutaneous
- medial contribution to the median nerve
- ulnar nerve
Posterior cord branches
5 listed
- axillary nerve
- radial nerve
- thoracodorsal nerve
- lower subscapular nerve
- upper subscapular nerve
identify


The suprascapular nerves branches off of?
upper trunk of the brachial plexus
Levator Scapulae Innervation
Dorsal Scapular nerve
Rhomboids major innervation
Dorsal Scapular nerve
Rhomboids minor innervation
Dorsal Scapular nerve
Serratus anterior innervation
Long Thoracic nerve
Latissimus dorsi innervation
Thoracodorsal Nerve
Supraspinatus innervation
Suprascapular nerve
Infraspinatus innervation
Suprascapular nerve
Teres Major innervation
Lower subscapular nerve
terminal branches of the posterior cord
- thoracodorsal
- lower subscapular nerve
- axillary nerve
- radial nerve
Pectoralis minor innervation
Medial pectoral nerve
Pectoralis major innervation
- Medial pectoral nerve
- Lateral pectoral nerve
subscapularis innervation
upper subscapular nerve
Lower subscapular nerve
Medial cord terminal branches
Medial pectoral nerve
Medial brachial cutaneous nerve
Medial antebrachial cutaneous nerve
Medial contribution to the median nerve
Ulnar nerve
Lateral cord terminal branches
lateral pectoral nerve
musculocutaneous (lateral antebrachial cutaneous nerve)
Lateral contribution to the median nerve
Identify


Identify


Identify

