Chapter 11 - Blood Flashcards
Cellular components of blood, 45% of blood
Formed elements
Liquid that makes up 55% of blood
Plasma
Help balance water flow between blood and cells
Plasma proteins
Important for blood’s water-balancing ability
Albumins
Transport lipids and fat-soluble vitamins, some are antibodies
Globulins
Give rise to the formed elements, within red blood marrow
Stem cells
Formed elements
Platelets, white blood cells, red blood cells
Sometimes called thrombocytes; fragments of larger precursor cells called megakaryocytes; essential to blood clotting
Platelets
Also called leukocytes; have a nucleus; removes waste and helps defend body against disease
White blood cells
Possess granules
Granulocytes
Lack visible granules
Agranulocytes
Engulf microbes by phagocytosis, thus curbing the spread of infection
Neutrophils
Defend against parasitic worms; lessen the severity of allergies
Eosinophils
Release histamine that attracts other white blood cells and causes the blood vessels to dilate; also play a role in some allergic reactions
Basophils
Largest of the formed elements; develop into macrophages
Monocytes