Flashcards in Week Three: Have A Heart Deck (84)
What is the purpose of the cardiovascular system?
Delivers oxygen, nutrients, and hormones to various tissues of the body
Transports waste products to the appropriate waste removal system
Also called circulatory system
What does cardiovascular mean?
Pertaining to the heart and blood vessels
What is the heart?
A hollow, muscular organ that provides the power to move blood through the body
The heart is located in the...
What is the pericardium?
Double walled membrane surrounding the heart
Made of fibrous and serous layers
What is the fibrous layer of the pericardium?
Tougher, protective layer
What is the parietal layer of the serous layer of the pericardium?
What is the visceral layer of the serous layer of the pericardium?
Touches the organ
What is the pericardial space?
Space between the two serous layers of the pericardium
Contains pericardial fluid
What is pericardial fluid?
Prevents friction between the heart and pericardium when the heart beats
What are the three layers of the heart?
Epicardium, myocardium, endocardium
What is the epicardium
External layer of heart
What is the myocardium
Middle layer of heart
What is the endocardium
Inner layer of heart
What are coronary vessels
Blood vessels that deliver blood to and take blood away from hearts tissues
What is a coronary occlusion
Blockage of coronary vessels and can lead to ischemia
What is ischemia
Deficiency in blood supply to an area
May lead to necrosis
An area of necrosis caused by ischemia is called..
What is atria
Superior chambers if heart
Combing form for atria
What are ventricles
Inferior chambers of the heart
Combining form for ventricles
What is a septum
What does the atrioventricular septum separate
Right and left chambers of the heart
What is the apex
Tip of heart (pointing part)
What is a valve?
Heart valves control...
Flow of blood through heart
Combining form for valve
Valv/o and valvul/o
Right AV valve is also called..
Right atrioventricular valve