Where does the blood from the superior vena cava come from?
singleAnswer
left and right brachiocephalic veins brachiocephalic vein, azygos vein
Superior vena cava
Where does the blood from the superior vena cava come from?
Superior vena cava Inferior vena cava Atrium (heart) Azygos vein Pulmonary vein Superior vena cava syndrome Venae cavae Cerebral circulation Valve of inferior vena cava Brachiocephalic vein
The <b>superior vena cava</b> (<b>SVC</b>) is the superior of the two venae cavae, the great 
venous trunks that return deoxygenated <b>blood</b> from the systemic circulation to the
&nbsp;... The inferior vena cava (or IVC) is a large vein that carries the deoxygenated 
<b>blood</b> from the lower and middle body into the right atrium of the heart. Its walls 
are rigid and it has valves so the <b>blood does</b> not flow down via ... the lower half of 
the body whilst the <b>superior vena cava</b> carries <b>blood</b> from the upper half of the 
body. The atrium (Latin ātrium, “entry hall”) is the upper chamber through which <b>blood</b> 
enters the ... Within the fetal right atrium, <b>blood</b> from the inferior vena cava and 
the <b>superior vena cava</b> flow in separate streams to ... and thus <b>do</b> not contract to 
the extent that <b>would</b> block flow from the veins through the atria into the ventricles
. The azygos vein is a vein running up the right side of the thoracic vertebral 
column draining itself towards the <b>superior vena cava</b>. It connects the systems of 
<b>superior vena cava</b> and inferior vena cava and can provide an alternative path for 
<b>blood</b> to ... level of the lumbar vertebrae but may <b>originate</b> above the point in 
some cases&nbsp;... The pulmonary veins are the veins that transfer oxygenated <b>blood</b> from the lungs 
to the heart. ... The right main pulmonary veins (contains oxygenated <b>blood</b>) pass 
behind the right atrium and <b>superior vena cava</b>; the left in front of the&nbsp;... <b>Superior vena cava</b> syndrome (SVCS), is a group of symptoms caused by 
obstruction of the <b>superior vena cava</b> (&quot;<b>SVC</b>&quot;), a short, wide vessel carrying 
circulating <b>blood</b> ... Randolph HL Wong; Joshua Chai; Calvin SH Ng; et al. (2009)
. &quot;Transvenous pacing lead-induced <b>Superior Vena Cava</b> Syndrome: What <b>do</b> we 
know?&quot;. The venae cavae are two large veins (venous trunks) that return deoxygenated 
<b>blood</b> from the body into the heart. In humans there are the <b>superior vena cava</b>&nbsp;... Cerebral circulation is the movement of <b>blood</b> through the network of cerebral 
arteries and ... along the floor of the cerebral vault, providing <b>blood</b> to tissues that 
<b>would</b> otherwise become ischemic. ... In the neck, the jugular veins parallel the 
upward course of the carotid arteries and drain <b>blood</b> into the <b>superior vena cava</b>. The valve of the inferior vena cava (eustachian valve) is a venous valve that lies 
at the junction ... inferior vena cava. Streaming this <b>blood</b> across the atrial septum 
via the foramen ovale increases the oxygen content of <b>blood</b> in the left atrium. ... 
The <b>superior vena cava</b> (<b>SVC</b>) <b>does</b> not have any homologous valve or valvule. Drains to, <b>Superior vena cava</b> &middot; Artery &middot; Brachiocephalic artery. Identifiers. Latin, 
vena brachiocephalica vena anonyma. MeSH &middot; D016121 &middot; TA &middot; A12.3.04.001 &middot; 
FMA &middot; 4723 &middot; Anatomical terminology. [edit on Wikidata]. The left and right 
brachiocephalic veins (or innominate veins) in the upper chest are formed by ... 
veins are the major veins returning <b>blood</b> to the <b>superior vena cava</b>.
brachiocephalic vein azygos vein
Superior vena cava