1
Q
foramen ovale
A
- -> fossa ovale
- opening of septum secundum
- shunts blood from right atrium–> left atrium by partially bypassing the lungs (pulmonary circulation)
- increase tension LA and LL
2
Q
ductus arteriosus
A
- .> ligamentum arteriosum
- connects left PA to concavity of arch of aorta
- shunts blood from pulmonary trunk to aorta`
3
Q
ductus venosus
A
- -> ligamentum venosum
- joins left branch of portal vein to IVC
- shunts oxygenated blood from umbilical vein (returning from placenta) to IVC
- hides behind liver
4
Q
umbilical vein
A
- -> ligamentum teres hepatis
- carry highly oxygenated blood from placenta to fetus
- consists of right vein
5
Q
umbilical arteries
A
–> medial umbilical ligament
6
Q
internal thoracic artery and vein
A
- supply diaphragm, pericardium and anastomoses in abdomen and intercostal arteries (comes from subclavian)
- becomes superior epigastric artery (continuation) behind rectus abdominal muscle
7
Q
left vagus
A
- goes in between the esophagus and the trachea
- wraps around aortic arch
8
Q
transverse pericardial sinus
A
- subdivision of pericardial sac lies posterior to ascending aorta and pulmonary trunk
9
Q
oblique pericardial sinus
A
- pericardial sac behind the heart
- surrounded by reflextion of serious pericardium around right and left pulmonary veins and IVC
10
Q
inferior vena cava foramina?
A
- T8
11
Q
esophagus hiatus
A
- T10
12
Q
aorta
A
- T12
- thoracic aorta becomes –> abdominal aorta
13
Q
right thoracic duct
A
- drains 1/4
- right side of head and right upper limb
14
Q
left thoracic duct
A
- drains 3/4
- lower part of right side
15
Q
which cardiac veins drain into the coronary sinus?
A
- all but the anterior cardiac vein
- great, middle, small, and oblique cardiac veins
16
Q
what prevents the cusps of the AV valves from being everted into the atrium?
A
- to prevent regurgitation of ventricular blood into the atrium, papillary muscles contract to tigthten the chorda tendineae
17
Q
cardiac plexus
A
- supplies the heart with sympathetic fibers
- receives superior, middle, and inferior cervical and thoracic cardiac nerves from the sympathetic trunks and vagus nerves
18
Q
SA node
A
- right SNS and PNS branches terminate in this region
19
Q
AV node
A
- left SNS and PNS branches terminate in this region
