Human Bio Final Review

what are the main functions of blood?

transport of gases, nutrients, and waste; regulation of PH, temperature, and water balance; and protection via immune response and clotting

Main composition of blood ?

Plasma (55%), formed elements(45%): red blood cells, white blood cells and platets

how much blood is in the human body

approximately 4.5 to 6 liters in an average adult

what is the structure and function of erythrocytes?

bioconcave shape, no nucleus, transports oxygen via hemoglobin.

what are the main types and functions of leukocytes?

Neutrophils (phagocytosis), eosiniphils (parasites/allergies), basophils (histamine), monocytes (macrophages), lymphocytes (B and T cells for immunity)

what are functions of plasma proteins?

albumin (osmotic pressure), globulins (immunity), fibrinogen (clotting).

what are the steps in blood clotting?

vascular spasm —>platelet plug —>

how do you visually identify red blood cells?

erythrocytes are red and bioconcavve

how do you visually identify white blood cells?

white blood cells have niclei and varied shapes

how do you visually identify platelets

they are small, purple, and spiky

what I'd hemoglobin and what does it do?

a protein in RBCs that binds to oxygen and carries it through the bloodstream.

what are the ABO and RH blood types?

A, AB, B, O and based on antigen presence; Rh+ has Rh antigen, Rh - does not

what are the major organs in the digestive system?

mouth, esophagus, stomacjh, small intestine, large intestine, liver, pancreas, gallbladder

what is the function of the mouth?

mechanical and chemical digestion

what is the function of the esophagus?

transport

what is the function of the stomach?

protein digestion