CH. 7 ESS 345 EXAM QUESTIONS AND ANSWERS
GRADED A++
what are the major functions of the cardiovascular system?
1. delivers O2 and nutrients
2. removes CO2 and other waste
3. transports hormones and other molecules
4. supports temperature balance/fluid regulation
5. maintains acid-base balance
6. regulates immune function
what are the major circulatory elements of the cardiovascular system?
1. pump (heart)
2. channels or tubes (blood vessels)
3. fluid medium (blood)
what are the four chambers of the heart?
right atrium, left atrium, right ventricle, left ventricle
does the right side of the heart have low or high pressure?
low pressure
where are the atria located?
top part of the heart
where are the ventricles located?
bottom of the heart
, pathway of blood through the heart
vena cava-> R atria -> tricuspid valve ->R Ventricle -> pulmonary artery -> lungs ->
pulmonary vein -> L atria -> mistrial valve ->L ventricles -> arteries to body
what is the function of the right chambers of the heart?
send deoxygenated blood to the lungs
what is the function of the left chambers of the heart?
send oxygenated blood to the body
what is myocardium?
cardiac muscle
what chamber of the heart has the most myocardium?
left ventricle
what are cardiomyocytes?
cardiac muscle cells
- type 1
- high capillary density
- high number of mitochondria
- striations
what connects myocardium?
intercalated dicks
features of myocardial cells?
- small, short, branched
- one nucleus
- involuntary contractions
GRADED A++
what are the major functions of the cardiovascular system?
1. delivers O2 and nutrients
2. removes CO2 and other waste
3. transports hormones and other molecules
4. supports temperature balance/fluid regulation
5. maintains acid-base balance
6. regulates immune function
what are the major circulatory elements of the cardiovascular system?
1. pump (heart)
2. channels or tubes (blood vessels)
3. fluid medium (blood)
what are the four chambers of the heart?
right atrium, left atrium, right ventricle, left ventricle
does the right side of the heart have low or high pressure?
low pressure
where are the atria located?
top part of the heart
where are the ventricles located?
bottom of the heart
, pathway of blood through the heart
vena cava-> R atria -> tricuspid valve ->R Ventricle -> pulmonary artery -> lungs ->
pulmonary vein -> L atria -> mistrial valve ->L ventricles -> arteries to body
what is the function of the right chambers of the heart?
send deoxygenated blood to the lungs
what is the function of the left chambers of the heart?
send oxygenated blood to the body
what is myocardium?
cardiac muscle
what chamber of the heart has the most myocardium?
left ventricle
what are cardiomyocytes?
cardiac muscle cells
- type 1
- high capillary density
- high number of mitochondria
- striations
what connects myocardium?
intercalated dicks
features of myocardial cells?
- small, short, branched
- one nucleus
- involuntary contractions
