lecture 12: regional structures Flashcards
what is the base of the axilla
skin/fascia of armpit
WHat is the apex of the axilla
Posterior clavicle
Ø Superior scapula
Ø External border of 1st rib
what is the anterior wall of the axilla
ANTERIOR WALL:
Ø Pectoralis Major and Minor
Ø (Anterior Axillary Fold)
what is the posterior wall of the axilla
Subscapularis
Ø Teres Major / Latissimus Dorsi
Ø (Posterior Axillary Fold)
what is the median wall of the axilla
Ø Upper ribs
Ø Intercostal muscles
Ø Serratus Anterior
what is the lateral wall of the axilla
Bicipital Groove of Humerus
Ø (Biceps brachii, Coracobrachialis, Triceps brachii)
be able to label the axilla
.
What are the contents of the AXILLa (6)
Axillary artery+ Axillary vein Brachial plexus and branches Fascia Lymph nodes Proximal part of Cephalic vein
What are the landmarks of the axilla
triangle space
qudrangle space
What are the latera, superior and inferior borders of the landmark of the triangle space
Lateral: Long head of
Triceps Brachii
• Superior: Teres Minor
• Inferior: Teres Major
what are the contents of the triangualr space
Branches of Suprascapular
nerve (Circumflex Scapular a.)
what are the borders of the quadrangular space
Lateral: Humerus
Medial: Long head of triceps brachii
• Superior: Teres Minor
• Inferior: Teres Majo
what are the contents of the quadrangular space
• Axillary nerve
• Posterior humeral
circumflex artery
BE able to locate the traigular and quadrangular space
/
what are the boudaries of the cubital fossa (lateral medial apex and base)
Lateral: Brachioradialis
Medial: Pronator Teres
Apex: Where the 2 muscles meet
Base: Imaginary line across both epicondyles
be able to label the cubital fossa
.
what are the boundatreis of antebrachial cubital fossa (floor, roof)
BOUNDARIES (Continued) -
• Floor: Brachialis and Supinator
• Roof: Fascia and Biceps Brachii aponeurosis
what are the contrents of the cibital fossa
• Contents: Biceps Brachii (tendon), Brachial Artery,
Median and Radial nerves
What is the lateral border of the triagular spcae
long head of triceps brachii
what is the superior and inferior boudaries of the triagnular space
inf: teres major and sup: teres minor
the Branches of Suprascapular
nerve (Circumflex Scapular
a.) are the contents of which landmark
triangular space
what is the lateral border of the quadrangular space
humerus
waht is the medial border of the quad space
long head of triceps brachii
what ist he superior border of the quad space?
teres minor
