Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
Atrium
|
upper chamber of the heart
|
|
Capillary
|
smallest blood vessels, one cell thick
|
|
Myocardium
|
muscle layer in the heart
|
|
Vein
|
vessel that carries blood back to the heart
|
|
Ventricle
|
lower chamber of the heart; pumps blood out
|
|
Sinoatrial Node
|
Pacemaker – tells atria to contract; spot on rt. atrium
|
|
Atrioventricular Node
|
tells ventricles to contract via Bundle of His, conduction and Purkinje fibers; bottom rt. atrium
|
|
Purkinje Fibers
|
stimulate ventricular contraction
|
|
Bundle of His
|
Connects AV Node to conduction fibers
|
|
Conduction fibers
|
sends contraction impulse through the septum
|
|
Septum
|
thick strip of muscle separating the ventricles
|
|
Arteriole
|
Smaller artery
|
|
Venule
|
Smaller vein
|
|
AV valve
|
flap between the atrium and ventricle; prevents backflow of blood
|
|
Artery
|
blood vessel with thick elastic and muscle layers; smaller lumen to maintain high pressure; designed to expand and contract while keeping shape; away from the heart
|
|
Vein
|
thin walls with only thin elastic and muscle layers; larger lumen with low pressure inside; largest have valves; towards the heart
|
|
valves
|
prevent back flow
|
|
Plasma
|
A straw–colored fluid in blood = 90% water and 10% dissolved gases, salts, nutrients, enzymes, hormones, waste products, plasma proteins, cholesterol, and other important compounds.
|
|
Hemoglobin
|
Protein in RBC that binds oxygen in the lungs and releases it in the capillaries.
|
|
Platelets
|
Cell fragments involved in blood clotting.
|
|
Lymph
|
fluid and components that has moved out of the blood through the walls of capillaries
|
|
Atherosclerosis
|
when fatty plaque builds up in artery walls; causes arteries to stiffen; Leading cause of heart disease
|
|
Globulin
|
Plasma protein; immune support and transport
|
|
Albumin
|
Plasma protein; osmotic pressure regulation and transport
|
|
Fibrinogen
|
Plasma protein for blood clotting
|
|
Erythrocytes
|
Transports oxygen; Gets color from iron in hemoglobin; Aka. Red blood cell
|
|
Leukocytes
|
Guards against infection, fights parasites, and attacks bacteria; aka. white blood cell
|
|
Lymph vessel
|
transports lymph to nodes for filtering then back to the blood
|
|
Pulmonary |
Lung related |
|
Cardiac |
Heart related |
|
Semilunar valve |
prevents blood from flowing back into the ventricle |