Sudden loss of heart function, breathing, and consciousness
Cardiac arrest
The color of the blood in your veins
Red, but they appear blue
How wide are capillaries
.001 mm
Arteries conduct bloodflow ________ from the heart
away
What are 2 factors that affect Stroke volume?
Blood pressure and heartrate
What are the effects of Epinephrine on the heart?
Increase in heart rate
True or False: Veins have valves
True
True or False: Capillaries have valves
False
Which structure is highlighted?
Left atrium
The hardening of the arteries
Atherosclerosis
Veins have bloodflow go _______ the heart
Towards
A single layer of endothelium and its primary function is exchange of gases and nutrients
Capillaries
What is pressure in the aorta called?
Blood pressure
Contractions by the heart are initiated by____
Pacemaker cells
The force of the blood against the artery walls is too high
High blood pressure
Veins are formed by _____
Venules
True or False: Capillaries have pores
False
The 4 main arteries of the heart
Coronary Arteries
What circuit sends blood to the lungs?
Systemic circulation
Improper beating of the heart
Arrhythmia
What is the great saphenous vein?
The longest vein
Controls blood flow to capillaries
Precapillary sphincter
Arteries carry ____
Oxygen rich blood
What is the conduction system responsible for?
Generating the heart beat