Chapter 21: Venous anatoy Flashcards
venae comitantes
veins corresponding to matching arteries
paired peroneal veins
formed by confluence of venules
empty lateral leg
paired posterior tibial veins
formed by confluence of venules
empty back of leg
paired anterior tibial veins
formed by confluence of venules
empty front of leg
popliteal vein
formed by union of ATV and tibial peroneal trunk
becomes femoral vein
femoral vein
popliteal vein becomes femoral vein when it passes through adductor hiatus
common femoral vein
formed by femoral vein and deep femoral vein joining
the common femoral vein becomes
external iliac vein when it passes through inguinal ligament
the common iliac vein is formed by
confluence of external and internal iliac veins
may thurner syndrome
left common iliac vein passes under right common iliac artery and extrinsic compression happens this can lead to a left lower extremity dvt
IVC
formed by confluence of common iliac veins at level of 5th lumbar vertebrae
carries blood into right atrium
small saphenous vein (lesser saph)
ascends back of calf
joins popliteal vein
what is the longest vein in the body
great saphenous vein
great saphenous vein travels
medial to saphenofemoral junction in groin
arises from dorsum of foot
perofators
carry blood from superifical veins into deep veins
posterior arch vein
has three ankle perforators
plays major role in development of venous stasis ulcers
SSV has an important
lateral perforating branch
important perforators of posterior arch vein
cockett I II and III
intracranial venous sinus
space between dura mater and periosteum that drains blood into the ijv
lower extremity venous sinus/ soleal sinus
dilated channels in soleal and gastroc muscle
drain blood into ptv and perov
major part of vald muscle pump
paired radial veins
empty lateral hand and forearm
paired ulnar veins
empty medial hand and forearm
paired brachial veins are formed by
confluence of radial and ulnar veins
axillary vein is formed by
confluence of brachial and basilic veins
subclavian vein
formed by confluence of axillary vein and cephalic vein
innominate vein
formed by confluence of subclavian vein and IJV
Superior vena vaca
formed by confluence of right and left innominate veins
carries blood into right atrium
Basilic vein
superficial formed by digital veins empties medial aspect of arm can be harvest for arterial bypass joins brachial vein to form axillary vein
cephalic vein
superficial formed by digital veins empties lateral aspect of arm join axillary vein to form subclavian vein can be harvested
portal vein
formed by SMV and Splenic vein
drains abdominal part of difiestic tract
carries blood into sinusoids of liver
portal vein carrys how much of blood flow to liver
80%
hepatic veins
carry blood from the liver into IVC
hepatofugal
away from liver
hepatopedal
towards liver
renal veins
empty into ivc
SVC and IVC terminate where
rt atrium
function of veins
thin walled transport blood from capillaries towards heart
carry away waste
layers of veins
intima
media (very thin)
adventitia
size of veins
capillaries (small) vena cava (largest)
venous valves are an extension of
intimal layer
venous valves are
biscuspid structure providing unidirectional flow
valves of lower extremities are
more susceptible to disease secondary to effects of venous thrombosis
veins without valves
soleal sinuses external iliac vein common iliac internal iliac innominate SVC and IVC
external iliac vein can contain valves
25% of the time
great saph # of valves
12 mostly below knee
small saph # of valves
6-12
perforators # of valves
each contain a valve
infra popliteal veins # of valves
7-12 each
popliteal and femoral valves
1-3 each
common femoral vein valve #
1
IJV valve number
1