Chapter 14: Blood Flashcards
blood
type of connective tissue suspended in liquid matrix
what determines blood amount in the body?
- body size
- changes in fluid concentration
- changes in electrolyte concentration
- amount of adipose tissue
how much of the body is blood?
8%
adult blood volume
male = 5-6 liters
female= 4-5 liters
blood cells
formed mostly in red bone marrow; called formed elements
types of blood cells (3)
- red blood cells
- white blood cells
- platelets
in a centrifuged blood sample, how much is plasma?
55%
in a centrifuged blood sample, how much is red blood cells?
45%
in a centrifuged blood sample, how much are white blood cells & platelets?
<1%
what is the % of red blood cells called?
hematocrit or packed cell volume
hematopoiesis
blood cell formation; originate in red bone marrow
red blood cells
- also called erythrocytes
- carry oxygen
- biconcave disc shape
how much of red blood cells is hemoglobin?
1/3
oxyhemoglobin
with oxygen
deoxyhemoglobin
without oxygen