Chapter 1: Arterial Gross Anatomy Flashcards
First branch of ascending aorta are the
coronoary arteries
the coronary arteries arise
proximal to arch
branches of aortic arch
innominate/brachiocephalic
lt cca
lt subclavian artery
innominate/brachiocephalic trunk divides into
rt cca
rt subclavian artery
subclavian artery runs
laterally to outer border of 1st rib, becomes axillary artery
branches of subclavian artery
vertebral
thyrocerical
costocervical
brachial artery
branches into radial and ulnar arteries at antecubital region / elbow
radial artery travels
down lateral forearm into hand
radial artery branches to form:
superficial palmar (volar arch)
the radial artery terminates
in deep palmar arch by joining a branch of the ulnar artery
the ulnar artery travels
down medial side of forearm into hand
the ulnar artery branches to form
deep palmar (volar) arch
the ulnar artery terminates
in superficial palmar arch
main source of blood flow to the hand is from the
ulnar artery
superficial palmar (volar) arch includes
distal portion of the ulnar artery
branch of radial artery
the deep palmar arch includes
deep palmar branch of ulnar artery
distal portion of radial artery
abominal aorta branches
celiac SMA renal arteries IMA bifurcation
Celiac Artery supplies
stomach, liver, pancreas, duodenum, spleen
the celiac artery branches into
l. gastric
common hepatic
splenic
the superior mesenteric artery supplies
small intestine
cecum
parts of colon
the SMA is located
1cm distal to celiac artery (can have a common trunk with celiac)
Renal arteries supply blood to
kidneys
adrenals
ureters
landmark for locating the left renal artery in trv
lt renal vein crosses aorta anteriorly, lt renal artery is just posterior to this
the common iliac arteries carry blood to
pelvis and lower limbs
the common iliac arteries divide into
internal and external iliacs
internal iliac artery is also known as
hypogastric artery
external iliac artery travels
medial to psoas major and passes underneath inguinal ligament
external iliac artery becomes
common femoral artery
the common femoral artery divides into
superficial femoral
deep femoral or profunda arteries
the superfical femoral arteries run
lengh of thigh, passing through adductor hiatus (adductor canal, Hunter’s canal)
enters pop fossa behind knee
Deep Femoral (profund femoris) artery is
a large branch
arises 5cm distal to inguinal ligament on lateral side
can act as a collateral connection
Adductor hiatus is the
termination point of the SFA and beginning of pop artery
the popliteal artery supply blood to
muscles
knee joint
skin
the popliteal artery divides into
anterior and posterior tibial arteries between tib/fib
Anterior tibial artery
first branch off pop artery
the anterior tibial artery becomes
dorsalis pedis artery (DPA)
directed across dorsum of foot towards base of great toe
Major branch of the dorsalis pedis artery is the
deep plantar artery
the deep plantar artery unites with
lateral plantar artery to complete plantar arch
the posterior tibial artery extends
obliquely down posterior/medial side of leg
major branches of the posterior tibial arterys are the
lateral and medial plantar arteries
lateral and medial plantar arteries branches
below medial malleolus to supply sole of foot
the peroneal artery travels
medial side of fibula
the peroneal artery supplies
lateral side of leg and foot
what arteries supply blood to toes
plantar and doral metatarsals
the plantar arch consists of
deep plantar artery (branch of DPA) and lateral plantar artery (branch of PTA)
arteries transport
gasses
nutrients
essential substances to capillars
arteries ____ in size from aorta to arterioles
decrease
arterioles are considered
resistance vessels
arterioles assist with
regulating blood flow through contraction and relaxation
capillaries are the site of
exchange between tissue and blood, exchange nutrients and waste
Layers of arterial wall
tunica intima tunica media tunica externa (adventicia)
tunica intima
inner layer
thin
smooth endothelium, base memebrane, connective tissue
tunica media
middle layer
smooth muscle, connective tissue of elastic type
tunica exerna/tunica adventitia
thinner than media
fibrous conntective tissue
some mucle fibers
the advential layer contains
vaso vasorum
vaso vasorum are
tiny vessels that carry blood to the walls of the larger arteries
