The Heart Flashcards
Describe the hearts location:
location of the heart
behind the sternum between the lungs, in thoracic cavity
centrally placed but angled to left of midline of body
contained within protective pericardial sac
How many chambers are within the heart?
4
Name the 2 lower chambers of the heart :
right ventricle
left ventricle
Name the 2 upper chambers of the heart:
right atrium
left atrium
What is the function of the pulmonary artery?
To transport deoxygenated blood to the lungs
What is the function of the pulmonary veins?
To transport oxygenated blood from the lungs to the heart
What is the function of the aorta?
To transport oxygenated blood to the systemic circuit to the body
Name the type of muscle present in the heart:
Cardiac Muscle (Myocardium)
The tricuspid valve is located in the :
Right side of the heart between the right atrium and right ventricle
The bicuspid valve (Mitral valve) is located :
In the left side of the heart between the left atrium and left ventricle
This vein trasports deoxygenated blood from the upper and lower body back to the heart:
Superior and Inferior Vena Cava
Explain the passage of blood through the heart:
- returned blood received via right atrium, except from lungs
- right atrium to right ventricle
- right ventricle to right and left pulmonary arteries, to lungs
- oxygenated blood returned via pulmonary veins to left atrium
- left atrium to left ventricle
- left ventricle to ascending aorta, to branches of the aorta to the heart and the rest of the body
Sympathetic nerves cause the heart rate to . . . . .
Speed up
Parasympathetic nerves cause the heart rate to . . . . .
Slow down
What can speed up the pulse rate?
Exercise
Strong emotions, such as anger, excitement, stress
Kidney disease
