Veins And Arteries Flashcards
Arteries: Systemic circulation
Oxygenated blood
Arteries: Pulmonary circulation
Unoxygenated blood
Veins
Carry blood to the heart. Are one way valves.
Veins: Systemic circulation
Unoxygenated blood
Veins: Pulmonary circulation
Oxygenated blood
Capillaries
Microscopic blood vessels. Exchange of gases, nutrients and wastes. Are one layer thick.
The three layers of the veins and arteries
Inner layer: tunica intima
Middle layer: tunica media
Outer layer: tunica externa
Tiny arteries are called:
Arterioles
Tiny veins are called:
Venules
Systemic circulation
Blood taken from the heart to the body and back
Pulmonary circulation
Blood taken from the heart to the lungs and back
Hepatic portal circulation:
Routes blood back from the stomach, spleen, pancreas, gallbladder, and intestines through the inferior vena cava
Fetal circulation
Ductus arteriosus, ductus venosus, and the for amen ovule.
Coronary circulation
Blood from the heart to the muscles and back
How to define blood pressure
Systolic number over the diastolic number
Pulse
How fast the heart is going
Hecrosis
Complete tissue death
Gangrene
As tissue dies, it prigressively decays
Arteriosclerosis
Hardening of the arteries; thickening as arterial walls as calcium deposits form
Angioplasty
A procedure where a deflated balloon is attached to a tube and placed in an artery to pop the hardened vessel open so blood can pass through
Aneurysm
section of the artery that has become abnormally widened and weakend; promotes blood clots and could rupture causing death.
Cerebrovascular incident
Stroke
Varicose veins
Spider web veins where blood tends to pool
Hemorrhoids
Varicose veins in the rectum which cause painful defecation
Phlebitis
Vein inflammation
Cyanosis
“Blue baby” when the foramen ovale fails to close at birth
Hypertension
High blood pressure
Cardiogenic shock
Results from any kind of heart failure which causes the heart to no longer pump effectively
Hypovolemic shock
Results from the loss of blood volume due to hemorrhage, chronic diarrhea, vomiting, etc..
Neurogenic shock
Widespread dilation of the blood vessels caused by an imbalance of autonomic stimulation of smooth muscles in vessel walls
Anaphylactic shock
widespread dilation of blood vessels caused by an acute allergic reaction
Septic shock
When infectious agents release toxins into the blood causing vessels to dilate
Arteries
Carry blood away from the heart. Have the thickest smooth muscle layers.
