Week 9 - Lab handout Flashcards
Which chamber pumps blood to the lungs?
right ventricle
Which chamber pumps blood out through the aorta?
left ventricle
Which chamber receives blood from the vena cavae?
Right atrium
Where does the blood in the vena cava come from?
- Comes from the body
- Comes from the coronary sinus
Which chamber receives blood through the pulmonary veins?
Left atrium
Which chamber receives blood from the right atrium?
right ventricle
Why is the wall of the left ventricle of the heart thicker than the wall of the right ventricle?
Because the left ventricle has to pump blood the farthest - to the body, in the systemic system. Hence - it is more work and needs a big muscle to do the heavy work
The right ventricle pumps blood a short distance, to the lungs, in the pulmonary circuit. Less work required - not as far to go
The pulmonary arteries carry the blood where?
from the heart to the lungs
The aorta carries the blood where?
Carries blood away from the heart - to the rest of the body
The coronary artery supplies what>
supplies blood to the heart tissue (muscle)
During strenuous exercise, a well-trained athlete can achieve a cardiac output double or triple that of a sedentary person. Why?
CO = how much blood can pump in a minute
The heart is a muscle.
Cardiac output increases to meet the needs of the body for more oxygen to the working muscles.
Athletes move muscles which need more oxygen - high-level
Sedentary person move low level of muscle needing low level of oxygen.
If the right ventricle pumped more blood into the lungs than the left could return, what would be the consequences?
pulmonary edema
Which artery leaves the right ventricle?
Pulmonary artery
Which vena cava serves the upper body?
Superior Vena Cava
Which vena cava serves the lower body?
Inferior Vena Cava
