Chapter 8: Cardiovascular System Flashcards
Define: Leaflets
Flat, leaf-shaped structures that comprise the valves of the heart and prevent the backflow of blood.
Define: Lumen
Tubular space or channel within an organ or structure of the body; space within an artery, vein, intestine, or tube
Define: Regurgitation
Backflow or ejecting of contents through an opening
Define: Sphincters
Circular muscles found in a tubular structure or hollow organ that constrict or dilate to regulate passage of substances through its opening.
Define: Vasoconstriction
Narrowing of the lumen of a blood vessel that limits blood flow, usually as a result of diseases, medications, or physiological processes.
Define: Vasodilation
Widening of the lumen of a blood vessel caused by the relaxing of the muscles of the vascular walls.
Define: Viscosity
Thickness or a measure of how resistant a liquid is to flowing.
What is the element word for aneurysm (Widened blood Vessel)?
aneurysm/o
What are the element words for vessel (blood or lymph)? (2)
- Angi/o
- Vascul/o
What is the element word for aorta?
Aort/o
What is the element word for artery?
Arteri/o
What is the element word for arteriole?
Arteriol/o
What is the element word for atrium?
Atri/o
What is the element word for fatty plaque?
Ather/o
What are the element words for heart? (2)
- Cardi/o
- Coron/o
What is the element word for electricity?
Electr/o
What is the element word for embolus?
Embol/o
What is the element word for blood vessel?
Hemangi/o
What is the element word for muscle?
my/o
What are the element words for vein? (2)
- Phleb/o
- Ven/o
What is the element word for hardening; sclera (white of eye)?
Scler/o
What is the element word for septum?
Sept/o
What is the element word for pulse?
sphygm/o
What is the element word for narrowing, stricture?
Sten/o