BLOOD

Blood
- connective tissue composed of:
- Plasma
- Formed elements
- -erythrocytes (RBCs)
- -leukocytes (WBCs)
- -Platelets
Hematocrit
- = percent of blood volume that is RBCs
- 47% - 5% for males
- 42% - 5% for females
Physical Characteristics & volume of blood
- Sticky, opaque fluid
- scarlet to dark red
- pH = 7.35-7.45
- 38 degress C
- 8% of body weight
- ave volume males 5-6 liters
- females 4-5 liters
Distribution of Blood
- oxygen / nutrients to body cells
- metabolic wastes to lungs / kidneys-out
- Hormones from endocrine to target organs
Regulation of Blood
- Body temp by absorbing / distributig heat
- Normal pH using buffers
- Adequate fluid volume in circulatory system
Protection against
- Blood loss
- -Plasma proteins and platelets -
- -clot formation
- Infection
- -antibodies
- -complex proteins
- -WBCs defend against foreign invaders
Blood Plasma
- 90% water
- Proteins are mostly produced by the liver
- -60% albumin
- -36% gobulins
- -4% fibrinogen

Author

ksales23

107084

Card Set

BLOOD

Description

CH 16 BLOOD

Updated

2011-10-07T09:37:19Z

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