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OTDV514
Brachial Plexus Branches
Musculocutaneous Nerve
Axillary Nerve
Radial Nerve
Median Nerve
Ulnar Nerve
56 secs
Brachial Plexus Cords
Lateral Cord
Lateral Pectoral Nerve
Posterior Cord
Upper Subscapular Nerve
Thoracodorsal Nerve
Lower Subscapular Nerve
Medial Cord
Medial Pectoral Nerve
Medial Cutaneous Nerve of Arm and Forearm
1 min
Brachial Plexus Divisions
Anterior (Division)
Posterior (Division)
27 secs
Brachial Plexus Roots
C5 through T1
Long Thoracic Nerve
Dorsal Scapular Nerve
43 secs
Brachial Plexus Trunks
Superior Trunk
Suprascapular Nerve
Middle Trunk
Inferior Trunk
1 min
Muscles of Mastication
Temporalis
Masseter
Medial Pterygoid
Lateral Pterygoid
Innervation
Mandibular Branch (V3) of Trigeminal Nerve
Embryology
1st Branchial Arch
1 min
Upper Limb Bones - Humerus
Characteristics
Greater Tubercle
Lesser Tubercle
Anatomic Neck
Surgical Neck
Deltoid Tuberosity
Epicondyles
Coronoid Fossa
Capitulum
Olecranon Fossa
Trochlea
3 mins
Neck and Shoulder Muscles
Superficial
Splenius Capitis
Trapezius
Rhomboid Minor
Rhomboid Major
Deltoid
Latissimus Dorsi
Levator Scapulae
Deep
Supraspinatus
Infraspinatus
Teres Minor
Teres Major
2 mins
Rotator Cuff
External Rotation
Teres Minor
Infraspinatus
Internal Rotation
Subscapularis
Abduction
Supraspinatus
1 min
Anterior Thorax Muscles
Characteristics
Pectoralis Minor
Pectoralis Major
Serratus Anterior
Intercostals (External, Internal, Innermost)
Subcostales
Transversus Thoracis
Diaphragm
2 mins
Anterior arm muscles
Anterior arm muscles
Anterior arm muscles
Coracobrachialis
Adduction, flexion and internal rotation
Biceps Brachii
Long head
Short head
Brachialis Muscle
Musculocutaneous nerve
Flexion of the forearm
Radial nerve
3 mins
Back Muscles
Superficial
Latissimus Dorsi
External Oblique
Internal Oblique
Gluteus Medius
Gluteus Maximus
Deep
Erector Spinae
Serratus Anterior
Serratus Posterior
2 mins
Scapula Complex Muscles & Actions
upper trapezius and levator scapulae
latissimus dorsi, pectoralis major, pectoralis minor, and lower trapezius
Serratus Anterior and pec minor
middle trapezius and rhomboids
trapezius and serratus anterior
rhomboids, levator scapulae, pec minor
1 min
Upper Limb Bones - Ulna and Radius
Characteristics
Ulna
Olecranon Process
Coronoid Process
Trochlear Notch
Radial Notch
Styloid Process of Ulna
Head of the Ulna
Radius
Radial Head
Neck
Radial Tuberosity
Styloid Process
Ulnar notch
Listers (aka Dorsal) Tubercle
3 mins
Anterior Forearm Muscles
Layer 1
Pronator Teres
Flexor Carpi Radialis
Palmaris Longus
Flexor Carpi Ulnaris
Layer 2
Flexor Digitorum Superficialis
Layer 3
Flexor Pollicis Longus
Flexor Digitorum Profundus
Pronator quadratus
Posterior Forearm Muscles
Layer 1
Anconeus
Extensor Carpii Ulnaris
Extensor Digiti Minimi
Extensor Digitorum
Extensor Carpii Radialis Brevis
Extensor Carpi Radialis Longus
Layer 2
Extensor Indicis
Extensor Pollicis Longus
Extensor Pollicis Brevis
Abductor Pollicis Longus
Supinator
Nerve Palsies - Winged Scapula
Nerve
Long Thoracic Nerve
Causes
Axillary Node Dissection in Mastectomy
Stab Wound
Muscle Affected
Serratus Anterior
Functional Deficit
Scapula Cannot Anchor to Thorax
Presentation
Inability to Raise Arm Above Head
1 min
Hand Muscles
Characteristics
Opponens Pollicis
Abductor Pollicis Brevis
Flexor Pollicis Brevis
Flexor Digiti Minimi Brevis
Abductor Digiti Minimi Brevis
Opponens Digiti Minimi
Lumbricals
Interossei (Palmar and Dorsal)
Palmaris Brevis
Adductor Pollicis
2 mins
Nerve Palsies - Erb's Palsy (Waiter's tip)
Nerves
C5-C6 Roots
Superior (Upper) Trunk
Causes
Lateral Traction on Neck during Delivery
Trauma in Adults
Functional Deficit
Deltoid
Infraspinatus
Biceps Brachii
Presentation
Waiter's Tip Deformity
2 mins
Nerve Palsies - Klumpke's Palsy
Nerve
C8 to T1 Roots
Lower Trunk
Causes
Upward Arm Force during Delivery
Adult Trauma
Grabbing Tree Branch to Break a Fall
Muscle Affected
Intrinsic Hand Muscles
Presentation
Claw Hand
1 min
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