Arteries Flashcards
What does the axillary artery arise from?
Continuation of the subclavian artery
Where does the axillary artery arise?
Lateral border of first rib
What is the axillary artery enclosed in?
Axillary sheath
What are the three phases of the axillary artery?
First - medial to pectoralis minor
Second - posterior to pectoralis minor
Third - lateral to pectoralis minor
Where do the anterior and posterior circumflex humeral arteries arise from?
Axillary artery
at level of surgical neck
Where do the anterior and posterior circumflex humeral arteries travel to?
Wrap around the surgical neck of the humerus
anteriorly and posteriorly
What else arises from the axillary artery near where the anterior and posterior circumflex humeral arteries arise?
Subscapular artery
What does the brachial artery arise from?
Axillary artery
Where does the brachial artery arise?
Inferior border of teres major
What does the brachial artery do once it’s arisen?
Gives off branch
the profunda brachii artery
Where does the profunda brachii artery travel?
Travels in radial groove
on posterior surface of humerus
along with radial nerve
What does the profunda brachii artery supply?
The triceps brachii
How does the profunda brachii artery end?
Near elbow joint
gives off network of vessels
Where does the brachial artery travel?
Descends down arm
close to median nerve
Enters cubital fossa
What does the brachial artery do in the cubital fossa?
At the apex of the cubital fossa
it divides into radial and ulnar arteries
What does the radial artery supply?
Posterior aspect of forearm
What does the radial artery do after it has entered the hand?
Gives off branch - superficial palmar branch
What does the radial artery do after giving off the superficial palmar branch?
Travels dorsally
through anatomical snuffbox
medially between two heads of adductor pollicis
becomes deep palmar branch
What does the ulnar artery supply?
Anterior aspect of forearm
How does the ulnar artery enter the hand?
Anteriorly to flexor retinaculum
Laterally to ulnar nerve
How does the ulnar artery end in the hand?
Divides into superficial palmar branch
Deep palmar branch
What do the superficial palmar branches of the radial and ulnar arteries form?
Form the superficial palmar arch
Where is the superficial palmar arch located?
In front of flexor tendons
Deep to palmar aponeuroses
The superficial palmar arches are useful for…
Heat loss when needed
What does the superficial palmar arch give rise to?
Common palmar digital arteries
What do the common palmar digital arteries supply?
The digits
What do the deep palmar branches of the radial and ulnar arteries form?
Deep palmar arch
What does the deep palmar arch give rise to?
Arteries supplying digits
What does the radial artery contribute to in the hands?
The thumb
and lateral side index finger
What does the ulnar artery contribute to in the hands?
Medial three fingers
Medial side of index finger
Does the hand have a good blood supply? How can this be shown?
Yes
It remains perfused even when it is gripping or applying pressure
