Blood Basics

blood overview, blood typing, hemostasis, basically everything but formed elements

composition of blood

plasma and formed elements

also known as the liquid matrix in blood, and what percentage of blood does it make up?

plasma, 55%

what percentage of total bodyweight does blood make up?

8%

pH range of blood

pH: 7.35-7.45 (normal ~7.4)

Volume of blood in males and females

5-6 L males, 4-5 L females

temperature of blood

~38°C (100.4°F)

functions of blood: what does it transport

gases, nutrients, hormones, and waste

functions of blood: what does it regulate

pH, temperature, and fluid volume

functions of blood: what does it protect against?

Protection against infection and blood loss

the 3 formed elements of blood

erythrocytes, leukocytes, thrombocytes (platelets)

what makes up 95% of formed elements in the blood?

oxygen and co2 transport

what are leukocytes responsible for?

immunity – includes neutrophils, eosinophils, basophils, lymphocytes, monocytes

what are thrombocytes (platelets) responsible for?

hemostasis (blood clotting)

the 3 major functions of blood are

transport, reg/maintain, and protection

the cells and cell fragments of blood are called

formed elements

the production of the formed elements of the blood is called

hematopoiesis

what is the main function of red blood cells?

transport both oxygen and carbon dioxide