Objective 1: Blood and blood products Flashcards
the study of blood and blood-forming tissues
hematology
what are the hematological systems?
bone marrow, spleen, and lymph system
what are the functions of the hematological system?
transport
regulation
protection
what does the hematological system transport?
oxygen from lungs to cells
nutrients from the GI tract to cells
hormones from endocrine glands to tissues and cells
metabolic waste products from cells to lungs, liver, and kidneys
what does the hematological system regulate?
fluid and electrolyte balance
body temp
acid-base balance
what does the hematological system protect?
combating invasion of pathogens and other foreign substances
maintaining homeostasis of blood coagulation
blood cell production
bone marrow
55% of blood, primarily water, also contains proteins, electrolytes, gases, nutrients, and waste
plasma
red blood cells; oxygen transportation
erythrocytes
white blood cells
leukocytes
platelets; promote blood coagulation
thrombocytes
what are the lab studies?
CBC
PT, INR, aPTT, platelets
hematocrit, hemoglobin
radiological studies
biopsy
molecular cytogenetics and gene analysis
liquid component of blood; a mixture of water, sugar, fat, protein, and salts. the main job is to transport blood cells throughout the body along with nutrients, waste products, antibodies, clotting proteins, chemical messengers such as hormones, and proteins that help maintain the bodys fluid balance
plasma
a biconcave disk with a flattened center, accounting for about 40-45% of blood volume; have no nucleus and can easily change shape, helping them fit through the various blood vessels in your body. contain special protein called hemoglobin.
RBCs
helps carry O2 from the lungs to the rest of the body and then returns CO2 from the body to the lungs so it can be exhaled
hemoglobin
cells that protect the body from infection, accounting for about 1% of your blood
leukocytes