Vessel anatomy
What type of artery has the thickest tunica media?
Muscular artery
What is blood flow?
The volume of blood flowing through vessels, organs, or the entire body.
Which capillary is most commonly found in the human body?
Continous capillaries
What are varicose veins?
Dilated and painful veins due to incompetent valves.
Blood pressure is directly proportional to
CO, TPR, Blood volume
What blood vessel is considered the "blood reservoir" of the body?
Veins
Which three things increase resistance?
Viscosity, Vessel length, Vessel diameter
Anastomoses
Build up of fats and plaque on artery walls is known as
Atherosclerosis.
If an individual is experiencing a SBP greater than 140 and DBP greater than 90. This individual is experiencing what
Stage 2 hypertension
What layer in the blood vessel is responsible for vasoconstriction and vasodilation?
Tunica media
Blood flow is inversely proportional to?
Peripheral resistance
What are the names of the capillaries from least to most permeable?
Continuous, Fenestrated, Sinusoidal
When an arterial wall starts to balloon and thins out making it more prone to rupture. What is this?
Aneurysm
Long-term BP regulation is controlled by
Renal (kidneys)
What adaptions of veins prevent the backflow of blood?
Venous valves
How do you find pulse pressure?
Systolic - Diastolic pressure
What is the name of the artery that branches and leads into capillaries?
Terminal arteriole
Acute hypotension can be a sign for what?
Circulatory shock
Pressure sensitive receptors that respond to changes in arterial pressure and stretch
Baroreceptors
In addition to valves, what three adaptions help veins with venous return?
1. Muscular pump (skeletal)
2. Respiratory pump
3. Sympathetic venoconstriction
What is Mean arterial pressure? (MAP)
Pressure that propels blood to tissues
What is the function of anastomoses?
To ensure continuous blood flow even if one pathway is blocked.
What are three examples of vascular shock
Anaphylactic shock, Neurogenic shock, and Septic shock
The indirect renal mechanism uses what to raise BP
Renin-angiotension-aldosterone mechanism