Superficial Veins of Upper Limb (2)
Cephalic laterally & Basilic Medially
Cephalic Vein origination and Course
Originates at the back of the hand called the dorsal veinous network & courses superiorly between deltoid and pec major (clavipectoral triangle) to Axillary Vein.
Basilic Vein originates where?
At the dorsal veinous network, back of hand.
What are the communicating branches of the superficial veins of the upper limb?
Median Cubital & Median AntiCubital
Where are both heads of the Pec Major? Where does it insert?
Clavicular Head: Anterior/medial half of clavicle (flexes humerous)
Sternocostal head: anterior of sternum, sup 6 costal cartilages and aponeurosis of external oblique muscle.
INSERTS: Lateral lip of intertubercular sulcus of humerus
Pec Minor's origin, Insertion, Innervation and action
O: 3-5th ribs near costal cartilage
I: Medial Border and SUperior surface of coracoid process
N: C8,T1 (MP Nerve)
A: Draw Scap inf. & anteriorly stabilize
Serratus Anterior's O,I,N,A
O: Ex Surface of Lateral aspect of Ribs 1-8
I: Ant Med Border of Scap.
N: C5-7 (LTN)
A: Protects Scap. Holds it against thoracic wall during pushing. Raises arm above the shoulder as well as rotates the scapula
What nerve and action is effected if Serratus Anterior is paralyzed?
LTN; Scap will tend to look like a wing during any pressing movements. Arm may not be able to be raised above horizontal
O: Lat third of clavicle, acromion, spine of scap
I: Deltoid tuberosity of humerus
N: C5-6 (Axillary)
A: Ant - Flex and med rot arm
Mid - ABduct Arm
Post - Extend and rot arm.
ALL TOGETHER - ABduct arm, first 15 degrees is done by delt & supraspinatus
O: Supraspinatous fossa of scap
I: Greater Tubercle of humerus (Sup Facet)
N: C4-6 (SupraScap Nerve)
A: (With Delt: ABduction and rotation)
O: Infraspinatous Fossa of Scap
I: Greater Tub of Humerus (Middle facet)
N: C5-6 (Suprascap Nerve)
A: Lat. Rot arm, helps with rot cuff
Teres Major OINA
O: Posterior Surface of Inf angle of Scap
I: Medial lip of intertub sulcus
N: Lower subscapular Nerve
A: Adduction, med rot arm
Teres Minor OINA
O: Mid Part of Lat Border of Scap
I: Inf Facet of Greater Tub of Humerus
N: C5-6 (Axillary Nerve)
A: Laterally rotates arm
O: Ant Surface of Scap (subscapularis fossa)
I: Lesser tub of humerus
N: Upper and lower Subscapularis nerve
A: Medially rot and adduct arm
Rotator Cuff Muscles:
T: Teres Minor
All are rotators EXCEPT Supraspinatus
Most commonly ruptured tendon of Rotator Cuff Muscle group?
Quadrangular Space of P Scap Region (4 aspects and contents?)
Passage between anterior and posterior of scapula.
Aspects: Inf Margin of T Minor, Surgical neck of humerus, Sup margin of T Major, Lat margin of long head of triceps.
CONTAINS: Ax Nerve, Post Circumflex artery.
Triangular Space of P. Scap Region (Three Aspects and Contents?)
Apects: medial margin of L. Head of Triceps, Sup. Margin of T Major, Inf Margin of T Minor.
CONTENTS: Circumflex scapular Artery
Triangular Interval of P. Scap Region (3 Aspects and Contents)
Aspects: L Margin of L head of Triceps, Shaft of humerus, Inf Margin of T Major
Contents: Radial Nerve and Profunda Brachii artery
Triangle of Ausculation Borders
Superior horizontal Lats muscle
Medial - Scapula
Lateral - Scapula
Biceps Brachii OINA
O: Short head: Tip of coracoid of Scap. Long head: Supraglenoid tubercle of scapula
I: Tuberosity of Radius & Fascia of forearm
N: C5-6 (Musculocutaneous Nerve)
A: Supination of forearm, Flexes Forearm, Short head resists dislocation of the shoulder.
O: Tip of coracoid of Scap
I: Middle third of medial side of humerus
N: C5-7 (Musculocutaneous)
A: Flex and Adduct Arm
O: Distal Half of Ant of Humerus
I: Coronoid process of tub of ulna
N: C5-7 (Musculocutaneous C5,6 & Radial C5-7)
A: Flexes forearm in all positions
Triceps Brachii OINA
O: Long H.: Infraglenoid tubercle of scap
Lateral: Posterior Surface of Humerus, sup to radial groove
Medial: Posterior surface of humerus inf to radial groove
I: Process of olecranon process of ulna fascia of forearm
N: C6-8 (Radial Nerve - From Post Cord of Brachial P.)
O: Lateral epicondyle of humerus
I: Lateral surface of olecranon of ulna to sup post side of ulna
A: Assists triceps in extending forearm, stabilizes elbow
Damage to the axillary nerve will cause the deltoid to?
The 1st section of the Axillary Artery is composed of what, supplies what and runs where?
Composed of Superior Thoracic Artery.
Supplies the Subclavius, Sup section of Serratus Anterior and Muscles of the 1st and 2nd intercostal spaces.
Runs medial from the Pec. Minor, lateral from first rib
The 2nd section of the Axillary Artery branches into which two arteries?
Thoracoacromial Artery and Lateral Thoracic Artery.
The Thoracoacromial Artery (2nd section of Axillary Artery) branches where?
Acromial, Pectoral, Clavicluar, deltoid
The Lateral Thoracic Artery (2nd section of Axillary Artery) branches where? Supplies?
Branches lateral to pec minor and supplies the pec Major, serratus anterior, lateral breast, and intercostal muscles
The 3rd section of the Axillary Artery runs where?
Lateral from pec minor to lateral Teres Major
The 3rd section of the Axillary Artery is composed of which other arteries?
The Subscapular artery (largest, shortest) - This goes to thoracodorsal for the lats.
Posterior and Anterior Circumflex Humoral Arteries - Posterior supplies the deltoid, teres Major and Minor, long head of triceps
Didn't write notes on the Brachial Plexus structure