Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
arteries
|
vessel carrying bood away from the heart
|
|
|
arterioles
|
small branches of the artery
|
|
|
capillaries
|
tiny vessels that connect arterioles and venules
|
|
|
venules
|
small blood vessels that collect blood from the capillaries and join to form veins
|
|
|
veins
|
carrying blood toward the heart
|
|
|
tunica externa
|
the outer most layer of blood vessels(connective tissue)thinner in arteries than viens
|
|
|
tunica media
|
the muscular middle layer found in blood vessels, it is more muscular in the atreries than the viens(smooth muscle & elastic tissue)
|
|
|
tunica intima
|
endothelium that lines blood vessels
|
|
|
endothelium
|
squamous epithelial cells that line the inner surface of the entire circulatory system and the vessels of the lymphatic system
|
|
|
precapillary sphincter
|
smooth muscle cells that guard the entrance to the capillary
|
|
|
systemic circulation
|
blood flow from the left ventricle to all parts of the body and back to the right atrium
|
|
|
pulmonary circulation
|
venous blood flow from the right atrium to the lung and returning to the left atrium
|
|
|
placenta
|
anchors the developing fetus to the uterus & provides a "bridge" for the exchange of nutrients and waste products between the mother and developing baby
|
|
|
umbilical cord
|
flexible structure connecting the fetus to the placenta, which allows the umbilical arteries and vein to pass
|
|
|
umbilical arteries
|
2 small arteries that carry O2 poor blood from the developing fetus to the placenta
|
|
|
unbilical vein
|
a large vein carrying O2 rich blood from the placenta to the developing fetus
|
|
|
ductus venosus
|
a continuation of the umbilical vein that shunts blood returning from the placenta past the fetus' developing liver directly into the inferior vena cava
|
|
|
hepatic portal circulation
|
the route of blood flow through the liver
|
|
|
foramen ovale
|
shunts blood from the right atrium directly into the left atrium allowing most blood to bypass the baby's developing lungs
|
|
|
ductus arteriosus
|
connects the aorta and the pulmonary artery, allowing most blood to bypass the fetus' developing lungs
|
|
|
blood pressure gradient
|
the difference between 2 blood pressures in the body
|
|
|
blood pressure
|
pressure of blood in the blood vessels, expressed as systolic pressure over diastolic pressure
|
|
|
central venous pressure
|
venous blood pressure within the right atrium that influnces the pressure in the large peripheral veins
|
|
|
pulse
|
is an artery expanding and then recoiling alternately
|
