Module 2 Cardiovascular system Flashcards
Cardiac cycle is a
Heartbeat
Lubb and Dubb
lubb sound indicates the closing of the valves between the atria and ventricles and the contracting ventricles; the dubb sound indicates the closing of the semilunar valves
Stroke volume
is the volume of blood pumped from one ventricle of the heart with each beat.
Name 5 groups of blood vessels
Arteries Arterioles Capillaries Venues Veins
Arteries
Carry blood away from the heart and towards the tissues
Arterioles
Are small subdivisions of the arteries They carry blood into the capillaries
Capillaries
exchange between the blood and the body cells & between the blood and air in the lung tissues Connect the arteriolar and venules
Venules
Venues are small vessels that receive blood back from the capillaries and begin its transport back toward the heart
Veins
Vessel that bring blood back to the heart
The ______ delivers blood to the lungs, where carbon dioxide is eliminated and oxygen is replenished
Pulmonary circuit
The pulmonary trunk and its arterial branches carry blood from the ____ to ___
Right ventricle Lungs
The _____ carry blood back to the left atrium
The pulmonary veins
Pulmonary vessels differ from those in the systemic circuit in that the pulmonary arteries carry blood that is low in oxygen and the pulmonary veins carry blood that is high oxygen. All the remaining arteries carry highly oxygenated blood and all the remaining Viens carry blood that is low in oxygen
.
Vessels that supply nutrients and oxygen to all the tissues and carry waste material away from the tissues for disposal
The systemic circuit
The aorta Receives blood from the _____and then branches into the _____ carrying blood to the tissues
Left ventricle Systemic arteries
The pulmonary capillaries in the lungs is where _____ happens. And the systemic capillaries is where _____ happens
Gas exchangeMaterials are exchanged
The _____ carry blood back toward the heart. The venous blood flows into the right atrium of the heart through the superior vena cava and inferior vena cava
Systemic veins
What are functions of the blood
Transportation regulation and protection
Blood volume in male and females
4.5 L in female 5.6 L in male
What color is blood when oxygenated
Bright red
What color is a blood when deoxygenated
Dark purpleish red
Blood is more ___and ____than pure water
Viscous and dense
What is the normal pH range for blood
7.35-7.45
Blood is slightly warmer then
Body temp with a temp of 100.4
How much percent of the blood is plasma
55%
How much percent of the blood is leukocytes
Less then 1%
How much percent of the blood are erythrocytes
45%
Plasma is mostly
Water
_____ Is plasma from which the clotting proteins have been removed
Serum
Most plasma proteins are produced where
By the liver
Albumin is an important plasma protein because it has what functions
Acts as a carrier for other moleculesBuffers the bloodIs a major contributor blood osmotic pressure
How does albumin contribute to osmotic pressure
Keeps water in the blood vessels and keeps it from leaking out into tissues
Aside from albumin what else contributes to osmotic pressure contributes to osmotic pressure
Sodium ions
If albumin levels dropped you would likely see what
Edema
Plasma cells are a type of ___ cell
B
Plasma is ____ percent water and ____ percent protein
90% 7%
Plasma are a type of B cells and B cells make ______ in response to specific antigens and play a major role in immunity
Antibodies
Proteins produced by the liver that cause coagulation
Fibrinogen and prothrombin
What vitamin aids and blood clotting factors
Vitamin k
Where is most of the vitamin K in the body made
The normal flora in the intestinal tract
What food provides vitamin K
Greenleafy vegetables
If a person was on Coumadin what food would you restrict from their diet
Green leafy vegetables
Blood plasma regulatory substances
Hormones and enzymes
Blood plasma nutrients
Glucose amino acids fatty acids
Blood plasma electrolytes
Sodium potassium calcium magnesium
Blood plasma respiratory gases
Oxygen in CO2