BLOOD VESSELS AND CIRCULATION Flashcards
(28 cards)
What carries blood away from the heart?
Arteries
what carries blood toward the heart?
Veins
How many types of arteries are there?
3
How many layers of arteries is there?
3
What are the 3 layers that make up the arteries?
-Tunica intima
-Tunica media
-Tunica externa
What are the 3 types of Arteries?
-Elastic
-Muscular
-Arterioles(small arteries)
How many types of capillaries are there?
3
What are the types of capillaries?
-Continuous
-Fenestrated
-Sinusoidal
What do sinusoidal means?
It allows large muscles to pass
What do capillary beds do?
It connects to the venule
All veins carries oxygenated blood except for———
Pulmonary veins
Lipid soluble substances diffuse directly through what?
Endothelial membrane
Water soluble substances pass through what?
clefts between cells
Capillary blood pressure pushes fluid into what?
The tissues
Hydrostatic pressure of the interstitial fluid does what?
pushes fluid back into the capillary
what is caused by plasma protein and do not move out the capillary?
Colloid Pressure
This value will decide whether water will move in or out of the capillary?
NFP Positive and NFP Negative
Water moves out of the vessel?
NFP Positive
Water will move into the vessel?
NFP Negative
What are the 3 main factors influencing BP?
-Cardiac output
-Peripheral resistance
-Blood volume
What is the systemic pressure normal value?
120/80
how many controls of blood pressure is there?
3
what are controls of blood pressure?
-Short term Neural control
-Short-Term Hormonal Control
-Long-Term Renal Control
what is the role of Baroreceptors in carotid sinus?
protect the brain
