Functions of Blood

How does blood help maintain homeostasis?

characteristics of Blood

  • The Average adult has a blood volume of approximately 5 liters, which composes about 8% of the body's weight.
  • Osmolality of blood is 275-295 milliosmoles per kg.
  • Plasma constitutes approximately 55% of blood's volume.
  • Plasma Composition
  • 90% Water
  • 8% Protein
  • 0.9% Inorganic Salts
  • For every 600 red blood cells, there are approximately 40 platelets and one white cell.
  • There is 5 pints and 8% of blood in the body

How blood is made, and where in the body it is made

Bone marrow that actively produces blood cells is called red marrow, and bone marrow that no longer produces blood cells is called yellow marrow. All blood cells come from the same kind of stem cell, which has the potential to turn into any kind of blood cell. Blood is produced in the bone marrow, the jelly like substance inside the bones that are composed of things such as fat, blood, and the specialized cells that turn into the blood cells.

Red Blood Cells

What percentage of blood is red blood cells?: 45%

Characteristics?: Transport nutrients, regulate body temp, protect from clots happening

Function: Deliver oxygen to the tissues and return carbon dioxide to the lungs.

How does it help the body maintain homeostasis? Blood carries what cells need to maintain their own homeostasis

What does it look like? red circles

Erythrocyte: a red blood cell that (in humans) is typically a biconcave disc without a nucleus

hemoglobin:a red protein responsible for transporting oxygen in the blood of vertebrates

Oxyhemoglobin: Hemoglobin combined with oxygen

Carbaminohemoglobin: The compound formed by the union of carbon dioxide with hemoglobin

White blood cells

What percentage of blood is white blood cells?: 55-70% of total white blood cell count

Characteristics?: Cells of the immune system, have a nuclei an do not contain hemoglobin

Function: Protect the body from infections

How does it help the body maintain homeostasis? By fighting off the infections

What does it look like? Little purple circle rings

Leukocytes: White blood cells

Neutrophils: White blood cell that stains readily with neutral dyes

Eosinophils White blood cell that is readily stained by eosin

Basophils: White blood cell that stains readily with basic dyes

Lymphocytes: Type of white blood cell: B cell and T cell

Monocytes: A phagocyte

Macrophage: Phagocytic cells in the immune system

Granulocyte: Category of white blood cells characterized by the presence of Granules in their cytoplasm

Agranulocyte: White blood cells with a one- lobed nucleus


What percentage of platelets is blood?: Are only about 20%

Characteristics?: Normal count is 150,000-350,000 per micro liter of blood, small Function: To prevent bleeding

How does it help the body maintain homeostasis? They help the body from forming blood clots

What does it look like?: Little red circle rings

Thrombocytes: Also called as a "platelet"; plays a role in blood clotting

Prothrombin activator: A protein formed by clotting factors from damaged tissue cells and platelets; converts prothrombin into thrombin, a step essential top forming a blood clot

Thrombin: Protein important in blood clotting

Fibrinogen: Soluble blood protein that is converted to insoluble fibrin during clotting

Fibrin: Insoluble protein in clotted blood

Coagulation: Process by which blood forms clots

Thrombus Stationary blood clot

Thrombosis: Formation of a clot in a blood vessel

Embolus: A blood clot or other substance (bubble of air) that is moving in the blood and may block a blood vessel

Embolism: Obstruction of a blood vessel by foreign matter carried in the bloodstream


What percent of plasma is blood?: Plasma, which is 92 percent water, constitutes of 55 percent of blood volume

Characteristics of plasma?: Pale yellow liquid, intravascular fluid, contains desolved proteins

Function: Holds the blood cells in whole blood in suspension

What does it look like?: Pale yellow liquid

Plasma protein: Any of several proteins normally found in the plasma; includes albumin's, globulin's, and fibrinogen

Serum: Blood plasma minus its clotting factors, still contains antibodies

Albumins: One of several types of proteins normally found in blood plasma; helps thicken blood

Globulins: A type of plasma protein that includes antibodies

Fibrinogen: Soluble blood protein that is converted to insoluble fibrin during clotting

Prothrombin: A protein present in normal blood that is required for blood clotting

Correction for white blood cells

Percent of white blood cells: range between 5,000-9,000

What do white blood cells look like?: If the cell is pink, the inside with the purple is the white blood cell

The granulocytic wbc's include : Eosinophils, neutrophils, basophils, lymphocytes, and monocytes.
-- The white blood cell have a function that is just as vital as the RBC'S. WBC'S defend the body from cancer cells that form inside our tissues and from microorganisms that have a succeeded in invading our body.

Correction for platelets

percent for platelets?: 300,00 in 1 cubic millimeter