Chapter 14-Blood Flashcards
Your blood regulates three aspects of homeostasis. List those three.
Body temp
pH
Water content of cells
Blood transports many substances. List six.
Oxygen Carbon dioxide Nutrients Wastes Heat Hormones
Explain two ways in which your blood protects you.
- Prevents blood loss through clotting response to injury
2. Combats microbes and toxins through the action of white blood cells or specialized plasma proteins
Average temperature of blood:
38°C (98.6°F)
pH of blood:
7.35-7.45
Volume of blood in the average adult:
4-6 liters
Blood consists of about ____ percent plasma and ____ percent formed elements, which include ______ and _________
55%
45%
Cells
Cellfragments
The three types of formed elements (or cells) are:
RBC’s
WBC’s
Platelets
The top layer of configured blood.
Plasma
The layer of centrifuges blood with the greatest volume.
Plasma
The layer of centrifuges blood with the least volume
White blood cells and platelets
The layer forming the buffy coat
White blood cells and platelets
The bottom layer of centrifuged blood
Red blood cells
Makes up 92% of plasma
Water
A protein made by the liver for blood clotting
Fibrinogen
Protein needs to maintain blood viscosity and pressure
Albumins
Protein needed to produce antibodies
Globulins
Blood formation is a process known as ______. All blood cell arise from hemopoietic _______ cells.
Pluripotent stem
After birth, most blood cell formation takes place in the red bone marrow. List three bones where this process takes place after birth.
Femur stern pelvis
A mature erythrocyte (does, does not) captain a nucleus.
Does not
The pigment named _____ accounts for the colors of RBC’s. It also is responsible for transporting almost all _____ in the blood.
Hemoglobin
Oxygen
RBC’s are normally shaped like ______ discs which gives them more flexibility and ______ area.
Biconcave
Surface
The average life of red blood cell is about 4 (hours, days, months, years)
Months
In adults, the RBC’s count per UL is (500, 5,000, 250,000, 5 million, 250 million)
5 million