ESS 345 CHAPTER 7 EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS VERIFIED
3 major circulatory elements
1. A pump (heart)
2. Channels or tubes (blood vessels)
3. A fluid medium (blood)
4 chambers of the heart
right atrium, right ventricle, left atrium, left ventricle
Recieving chambers
right and left atrium
bottom pumping chambers
right and left ventricles
The right chambers are for
pulmonary circulation
What occurs in pulmonary circulation
deoxygenated blood is sent to the lungs
its low pressure
the left chambers are for
systemic circulation
What occurs in systemic circulation?
, Oxygenated blood is sent ti the lungs
its high pressure
cardiac muscle
myocardium
Which part of the heart has the most myocardium
left ventricle
left ventricle
pumps blood to the entire body
Has the thickest walls
largest adaptation via stress
cardiac muscle cells
cardiomyocytes
cardiomyocytes
Type I fiber
High capillary density
High mitochondria count
Has striations
How is myocardium held together
intercalated disks
Skeletal muscle cells
Large, long, and unbranched
Multinucleated
Intermittent and voluntary contractions
WITH COMPLETE SOLUTIONS VERIFIED
3 major circulatory elements
1. A pump (heart)
2. Channels or tubes (blood vessels)
3. A fluid medium (blood)
4 chambers of the heart
right atrium, right ventricle, left atrium, left ventricle
Recieving chambers
right and left atrium
bottom pumping chambers
right and left ventricles
The right chambers are for
pulmonary circulation
What occurs in pulmonary circulation
deoxygenated blood is sent to the lungs
its low pressure
the left chambers are for
systemic circulation
What occurs in systemic circulation?
, Oxygenated blood is sent ti the lungs
its high pressure
cardiac muscle
myocardium
Which part of the heart has the most myocardium
left ventricle
left ventricle
pumps blood to the entire body
Has the thickest walls
largest adaptation via stress
cardiac muscle cells
cardiomyocytes
cardiomyocytes
Type I fiber
High capillary density
High mitochondria count
Has striations
How is myocardium held together
intercalated disks
Skeletal muscle cells
Large, long, and unbranched
Multinucleated
Intermittent and voluntary contractions
