Cardiovascular System Flashcards
(31 cards)
The heart lies within…
The thoracic cavity in the mediastinum.
The cardiovascular system consists of…
The heart, blood vessels & blood
Arteries carry blood…
Away from the heart
Veins carry blood…
To the heart
What is blood pressure?
The force exerted on the artery wall.
Cardiac output is?
The volume of blood pumped by each ventricle in one minute
3 layers of blood vessels
Tunica intima, tunica media & tunica adventitia.
Arterioles are…
Controllers of blood pressure and the gate keepers to the capillary network.
Capillaries allow…
Exchange of materials between blood & fluids around the cell.
Capillaries merge to form…
Venules (the smallest veins)
Arterioles regulate…
Blood flow to the tissues
Stimulation of the ……… Reduces heart rate
Vagus nerve.
What vein collects blood from the digestive organs?
Hepatic portal vein.
What artery provides blood to the neck, brain, pharynx, larynx and the face?
The carotid artery.
What valve seperate a the right atrium and the right ventricle?
The tricuspid valve.
What are attached to the chordae tendinae?
The papillary muscles.
What is the muscle of the heart called?
The myocardium
The outer layer of the pericardium is called…
The parietal pericardium
What carries oxygen poor blood to the lungs?
The pulmonary arteries.
The S-A node is…
The pacemaker of the heart.
The arteries which feed the capillary beds are
Arterioles
The largest artery in the body is
The aorta
the mitrial valve is also known as the
Bicuspid valve
What protects the heart other than the skeleton?
The epicardium
