Cardiovascular System Flashcards
(43 cards)
Transports oxygen, waste, and hormones
Blood
Regulates body temp, PH, and fluid volume
Blood
Prevents infection and blood loss
Blood
What type of tissue is blood
connective
Suspended cells in blood
Formed elements
Fluid matrix of blood
plasma
The percentage of Red blood cells in your blood
Hematocrit
Composition of plasma (%)
90% water, and 10% dissolved gases, salts, minerals, proteins etc
1/3 types of proteins found in plasma
Albumin
Globulins
Fibrinogen
Composition of plasma is regulated by
homeostasis
Percentage components of blood
55% Plasma, 44% Red blood cells, 1% WBC and platelets
What are erythrocytes
Red blood cells
Transports oxygen around the body via hemoglobin molecules
Erythrocytes
Why do erythrocytes have few organelles and no nucleus
To use as little oxygen as possible
Why does oxygen need to be carried by erythrocytes
oxygen is non polar, so it is not soluble in blood
How many globin chains make up a hemoglobin
4
a globin contains a flat molecule called a
heme
What molecule, and how many of these molecules does each globin chain hold
1 iron atom
What does iron bond to, and what does this result give
Iron bonds to Oxygen, giving each hemoglobin four oxygen molecules
Protects the body from foreign cells or substances
Leukocytes
What are the two categories of leukocytes
granulocytes and agranulocytes
Lobe shaped nuclei, visible granules
granulocytes
spherical or kidney shaped nuclei, no visible granules
agranulocytes
engulf and destroy foreign bacteria, most common leukocyte, produced in infection
Neutrophils