Ch. 1 Arterial Gross Anatomy Flashcards
(37 cards)
What are the first branches of the ascending aorta?
The coronary arteries
What side is the Innominate/ Brachiocephalic artery on?
What does it divide into?
Right side
Divides into the RCCA and subclavian arteries
What are the branches of the aortic arch?
1st branch are the coronary arteries.
Innominate/Brachiocephalic
LCCA
Lt sublcavian artery
What rib is associated with the subclavian artery?
What are some branches?
It runs laterally to the outer border of the 1st rib
1 Vertebral, 2 thyrocervical, 3 costocervical
What does the brachial artery branch into and where?
Radial and ulnar arteries at inner aspect of elbow (antecubital fossa)
What does the radial artery branch to form?
Superficial palmar (volar) arch
Where does the radial artery terminate and join?
In the deep palmar arch by joining the deep branch of the ulnar artery
What does the ulnar artery branch to form?
Deep palmar (volar) branch
Where does the ulnar artery terminate?
In the superficial palmar arch
What is the predominate source of blood flow to the hand?
The ulnar artery
What does the superficial palmar (volar) arch include?
Distal portion of ulnar artery
Branch of the radial artery
Deep palmar arch includes?
Deep palmar branch of ulnar artery
Distal portion of the radial artery
What are the visceral branches of the abdominal aorta?
Celiac, SMA, Renal arteries, and IMA
What organs does the celiac artery supply?
What are it’s branches?
Organs - Stomach, liver, pancreas, duodenum, and spleen
Branches - L. gastric, splenic and CHA
What does the SMA supply?
Where is it located?
What is an anomaly of this vessel?
Organs - Small intestine, cecum, parts of colon.
Location- 1 cm distal to Celiac A.
Can be a common trunk of the Celiac A and SMA
What do the renal arteries supply?
Are multiple RAs uncommonly seen bilaterally?
What is the landmark for left renal A?
Kidneys, suprarenal glands, and ureters
Not uncommon
Left renal v which crosses the AO anteriorly, the artery begins posterior.
What does IMA supply?
Where does it arise from?
What can it act as?
Transverse, descending colon and part of rectum
Arises from Abd AO about 3-4 cm above bif
can act as a collateral connection
What are the Terminal Branches of the Abd AO?
Both Common Iliacs, external and internal
What does the most distal branches of the Abd Ao - the Common Iliac arteries supply?
They carry blood to the pelvis, abdominal wall, and lower limbs
Where does the external iliac artery travel and what does it become?
along the medial side of the Psoas major muscle, passing underneath the inguinal ligament.
It becomes the CFA
Where does the superficial femoral artery pass through and enter?
an opening in the tendon of the adductor hiatus (adductor canal, or Hunter’s canal)
Enters the pop fossa behind the knee
Where does the deep femoral (profunda femoris) artery arise?
What can it act as?
About 5 cm from the inguinal ligament on the lateral side
A collateral connection
Where is the popliteal artery located?
What does it divide into?
Adductor hiatus: termination of SFA
Divides into anterior and posterior tibial arteries at interval between tibia and fibula.
Note: these two branches along with the peroneal artery branch is referred to as the trifurcation.
What is the first branch off of the distal pop artery?
What does it become and where is it directed?
Anterior tibial artery
Becomes dorsalis pedis artery and is directed across dorsum of foot towards base of great toe.
