Module 1 - Lesson 4 Flashcards
The circulatory system in the body can be divided broadly into 3 parts:
the heart
the systemic circulatory system
the pulmonary circulatory system
both _______ and __________ are separate closed loops
systemic
pulmonary
circulation
the heart is what role in the system?
the pump
what is the order of travel for blood?
heart
arteries
capillaries
veins
the pulmonary vein carries…
oxygenated blood
the coronary sinus carries…
deoxygenated blood
the IVC carries…
deox
the aorta carries…
oxy
the main pulmonary artery carries
deox
the right atrium carries…
deox
the left atrium carries…
oxy
the right coronary artery carries…
oxy
what is the purpose of blood circulation?
deliver oxygen, nutrients, chemicals, hormones, remove wastes
the right side of the heart carries….
deoxygenated
the right side of the heart empties into
the right atrium
the IVC, SVC, and coronary sinus all carry, and end where?
deox
r atrium
the main pulmonary artery comes off the ____ side
right side
the left side carries…
oxygenated blood
the aorta is found on the _side
left side of the heart
what is the route of systemic circulation?
arteries
veins
what is the route of pulmonary circulation?
heart
main pulmonary artery
R/L pulmonary arteries
lungs
now oxy:
R/L pulmonary veins
heart
what is coronary circulation?
the blood that feeds the heart
what are coronary sulci?
grooves on heart surface where coronary veins and arteries run
what are the 4 main sulci?
R/L atrioventricular grooves
A/P interventricular sulus
coronary arteries are…
the first openings on the aorta - right and left
what are ostiums?
openings from the aorta to the coronary arteries
how many branches does the left coronary artery have?
- 2
- left anterior
- circumflex artery
what is the left anterior left coronary arteries job?
supply the septum and anterior LV and apex with blood -
in the anterior interventricular sulus
what is the job of the circumflexed artery?
supply LA and leteral LV
left antrioevntricular groove
left anterior decending artery is in which sulcus?
anterior interventricular
the posterior decending artery is in wich sulcus?
posterior interventricular sulcus
the circumfelx artery is in which sulcus?
left atrioventricular
the right coronary artery is in which sulcus?
right atrioventricular
the right coronary artery supplies the..
right ventricle
what coronary artery has the most dominance?
right - 70%
left - 10%
co-dom - 20%
most cardiac veins drain into…
the coronary sinus
where are oxygen levels the highest?
aorta, LV, LA -98%
where are 0xygen levels the lowest?
coronary sinus - 60%
what is the o2 conc in the right side of the heart and pulmonary artery
75%
what are the 3 pathways that are taken in fetal circulation?
ductus venous
foramen ovale
ductus arteriosus
blood always flows from…
high to low pressure
which chambers have higher pressures?
left sided will always be higher
artery pressure will always be…
higher
what is the pressure in the Left Atrium?
10mmHg
what is the pressure in the Left ventricle? s and d
systolic - 120 mmHg
diastolic - 10mmHg
what is the pressure in the right ventricle? s and d
s- 25mmHg
d- 3mmHg
what is the pressure in the right atrium?
3mmHg
what is the pressure in the aorta? s and d
s- 120mmHg
d- 70 mmHg
what is the pressure in the pulmonary artery? s and d
s- 25mmHg
d- 10 mmHg
