The Cardiovascular System: Crash
Course Questions and Answers
Heart - correct answers✅✅The organ that powers the entire
circulatory system, pumping blood throughout the body and
transports nutrients, oxygen, waste, heat, hormones, and immune
cells
The heart's purpose: - correct answers✅✅To *maintain
pressure* by generating *high hydrostatic pressure to pump blood
out of the heart*, while also creating *low pressure to bring it
back in*;
That gradient of force is what blood pressure is
Blood Pressure - correct answers✅✅A measure of the amount
of strain your arteries feel as your heart moves your blood around
at about 60 beats per minute
Pericardium - correct answers✅✅Double walled sac around the
heart
Two layers of the pericardium - correct answers✅✅fibrous
pericardium and serous pericardium
Fibrous pericardium - correct answers✅✅The the *tough outer
layer that is made of dense connective tissue* and *helps protect
the heart while anchoring it to some of the surrounding
structures*, so it doesn't bounce everywhere while beating
,The Cardiovascular System: Crash
Course Questions and Answers
Serous pericardium - correct answers✅✅The *inner layer* that
*consists of an inner visceral layer, or epicardium* -- which is
actually a part of the heart wall -- *and an outer parietal layer*
What separates the 2 layers of the pericardium? - correct
answers✅✅A *thick film of fluid* that acts as a natural
lubricant, *providing a slippery environment for the heart to move
around in so it doesn't create friction as it beats*
Three Layers of the Heart: - correct answers✅✅epicardium,
myocardium, endocardium
Epicardium - correct answers✅✅The outer layer of the heart;
Visceral layer
Myocardium - correct answers✅✅The middle layer of the
heart; Mainly composed of cardiac muscle tissue that does all the
work of contracting
Endocardium - correct answers✅✅The inner layer of the heart;
Thin white layer of squamous epithelial tissue
Fluid flows from areas of ____________ to areas of ____________ -
correct answers✅✅high pressure; low pressure
, The Cardiovascular System: Crash
Course Questions and Answers
Septum - correct answers✅✅Divides the right and left
chambers of the heart; A thin partition
What are the 4 chambers of the heart? - correct
answers✅✅right atrium, right ventricle, left atrium, left
ventricle
AKA 2 superior atria (low pressure) and 2 inferior ventricles (high
pressure)
Right atrium - correct answers✅✅Receives deoxygenated
blood from the body through the vena cava and pumps it into the
right ventricle which then sends it to the lungs to be oxygenated.
tricuspid valve - correct answers✅✅Valve between the right
atrium and the right ventricle
Right ventricle - correct answers✅✅pumps deoxygenated
blood to the lungs via the pulmonary artery
pulmonic valve - correct answers✅✅Heart valve between the
right ventricle and pulmonary artery; Right semilunar valve
Pulmonary artery - correct answers✅✅Carries deoxygentated
blood from the heart to the lungs
Course Questions and Answers
Heart - correct answers✅✅The organ that powers the entire
circulatory system, pumping blood throughout the body and
transports nutrients, oxygen, waste, heat, hormones, and immune
cells
The heart's purpose: - correct answers✅✅To *maintain
pressure* by generating *high hydrostatic pressure to pump blood
out of the heart*, while also creating *low pressure to bring it
back in*;
That gradient of force is what blood pressure is
Blood Pressure - correct answers✅✅A measure of the amount
of strain your arteries feel as your heart moves your blood around
at about 60 beats per minute
Pericardium - correct answers✅✅Double walled sac around the
heart
Two layers of the pericardium - correct answers✅✅fibrous
pericardium and serous pericardium
Fibrous pericardium - correct answers✅✅The the *tough outer
layer that is made of dense connective tissue* and *helps protect
the heart while anchoring it to some of the surrounding
structures*, so it doesn't bounce everywhere while beating
,The Cardiovascular System: Crash
Course Questions and Answers
Serous pericardium - correct answers✅✅The *inner layer* that
*consists of an inner visceral layer, or epicardium* -- which is
actually a part of the heart wall -- *and an outer parietal layer*
What separates the 2 layers of the pericardium? - correct
answers✅✅A *thick film of fluid* that acts as a natural
lubricant, *providing a slippery environment for the heart to move
around in so it doesn't create friction as it beats*
Three Layers of the Heart: - correct answers✅✅epicardium,
myocardium, endocardium
Epicardium - correct answers✅✅The outer layer of the heart;
Visceral layer
Myocardium - correct answers✅✅The middle layer of the
heart; Mainly composed of cardiac muscle tissue that does all the
work of contracting
Endocardium - correct answers✅✅The inner layer of the heart;
Thin white layer of squamous epithelial tissue
Fluid flows from areas of ____________ to areas of ____________ -
correct answers✅✅high pressure; low pressure
, The Cardiovascular System: Crash
Course Questions and Answers
Septum - correct answers✅✅Divides the right and left
chambers of the heart; A thin partition
What are the 4 chambers of the heart? - correct
answers✅✅right atrium, right ventricle, left atrium, left
ventricle
AKA 2 superior atria (low pressure) and 2 inferior ventricles (high
pressure)
Right atrium - correct answers✅✅Receives deoxygenated
blood from the body through the vena cava and pumps it into the
right ventricle which then sends it to the lungs to be oxygenated.
tricuspid valve - correct answers✅✅Valve between the right
atrium and the right ventricle
Right ventricle - correct answers✅✅pumps deoxygenated
blood to the lungs via the pulmonary artery
pulmonic valve - correct answers✅✅Heart valve between the
right ventricle and pulmonary artery; Right semilunar valve
Pulmonary artery - correct answers✅✅Carries deoxygentated
blood from the heart to the lungs
