Blood Flashcards
Blood
Only fluid tissue in body
Connective tissue
Components of blood
Living cells- formed elements
Nonliving matrix- plasma
Oxygen rich blood
Scarlet red
Oxygen poor blood
Dull red
pH must be
7.35-7.44
Blood temperature
100.4°
In a healthy man blood volume is about
5-6 liters or about 6 quarts
Blood makes up ___% of body weight
8%
Blood plasma
90% water
Includes dissolved substances such as: nutrients, salts (electrolytes), respitory gases, hormones, plasma proteins, waste products.
Plasma proteins
Made by liver
Plasma proteins: Albumin
Regulates osmotic pressure
Plasma proteins: clotting proteins
Help to stem blood loss when a blood vessel is injured.
Plasma proteins: antibodies
Help protect the body from pathogens
Formed elements
Erythrocytes: RBC
leukocytes: WBC
Platelets
Cell fragments
Erythrocytes RBCs
Main function: carry oxygen