Chapter 17 Flashcards
(44 cards)
The life sustaining transport vehicle of the cardiovascular system is?
Blood
Three Main Functions of Blood are
To transport, Protect, and regulate
Transport functions of blood include:
Transporting Oxygen
Regulation Functions of blood include:
Regulating body temperature
Maintaining normal pH, Sufficient and adequate fluids
Protection functions of blood include
Protection from blood loss and infection
what type of tissue is Blood
its a connective tissue and is the only the only fluid tissue found in the body.
Is plasma living or non living
non lliving
Living blood cells suspend in the plasma are called
Formed elements
Three types of formed elements
Erythrocytes, Leukocytes, and Platelets
Major components of whole blood include:
Plasma at 55%, Buffy coat at <1%, Erythrocytes at 45%
What color is blood
Blood varies with O2 levels, but mostly red
What makes up 8% of our body weight
Bloo
What is the pH of our Blood
7.35-7.45
Blood plasma is what color? And how much of Blood Plasma is water?
Straw-colored sticky fluid and about 90% water
WHat are dissolved solutes?
Nutrients, hormones, wastes, inorganic ions
WHere are dissolved solutes found? And what are the most abundant solutes?
IN plasma. Plasma proteins
Formed elements
RBCs, WBCs, And platelets
How long do most formed elements survive
just a few days
where do most cells originate
in the bone marrow and do not divide
structural characteristics of erythrocytes include”
small in diameter (7.5 um)
Filled with hemoglobin
Biconcave relative for gas transport
Hemoglobin makes up 97% cell volume
Do RBCs have mitochondria
NO, Atp production is anaerobic, they do not consume O2 they transport
Hemoglobin binds to what?
Oxygen
Hemoglobin consists of:
globin, 4 polypeptide chains and 4 heme groups
How much oxygen can one Hb molecule transport and how many Hemoglobin molecules are found in one RBC?
Each hb molecule can transport 4 oxygen molecules, and each RBC contains 250 million molecules
