LAB 7 Blood LO's Flashcards
functions of the cardiovascular system
- transport nutrients, gases, & waste products around the body
- Protect the body from infections and blood loss
- help the body MAINTAIN A CONSTANT BODY TEMPERATURE (heat from muscle contractions)
- helps MAINTAIN FLUID BALANCE within the body
general characteristics of blood
- connective tissue and all RBC are formed in BONE MARROW
transport nutrients, gasses, wastes, & hormones, helps maintain homeostasis of interstitial fluid, restricts fluid loss, immunity & distributes heat
transport oxygen to the lungs
FORMED ELEMENTS IN THE BLOOD
Red blood cells (RBC), white blood cells (WBC), & platelets
LIQUID PORTION OF BLOOD
PLASMA
WHY IS BLOOD FOUND ON THE BONE MARROW
BECAUSE OF HEMOCYTOBLASTS, THEY THEN DIVIDE AND BECOME SPECIALIZED
what is the volume of the blood for adults
5 liters
Purpose of HEMATOCRIT?
Test that separates elements of the blood (RBC, WBC, plasma)
AND Determine deficiency of RBC or lack of hemoglobin
Significance of RBC counts
known as ERYTHOCYTS
BICONCAVE DISCS WITHOUT A NUCLEUS AND MITOCHONDRIA
increase SURFACE AREA & squeeze through vessels
function of ERYTHOCYTE
red blood cells
transport oxygen and carbon dioxide
function of Leukocytes
white blood cells
protect against disease
leave blood vessels & travel to infection sites
leukocytes: what is pus
bacteria, damaged cells, WBC
types of LEUKOCYTES: IN ORDER (WBC)
NEVER, LET, MOKEYS, EAT, BANANAS
Neutrophils
Lyphocytes
Monocytes
Eosinphils
Basophils
Define: Neutrophils and their significance
react to BACTERIA INFECTIONS
- first to be there
60-70% of WBC
define: Lymphocytes
provides immunity
t and B cells
B cells produce antibodies
20-25% of WBC
define: Eosinphils
react to ALLERGIC REACTIONS
fight against PARASITIC WORM INFECTIONS
2-4% OF WBC
define: Monocytes
bacteria, dead cells, and other debris
LEAVES THE BLOOD STREAM
3-8% of WBC
Define: Basophils
relates HEPARIN AND HISTAMINE
inhibits blood clotting
less than 1% of WBC
plasma % and definiton
55%
non -cellular fluid portion of blood, H2O, nutrients, gases, hormones, waste
RBC and hemoglobin
RBC transport hemoglobin and makes blood appear red the bound to OXYGEN IN ARTERIES
BLOOD APPEARS WHAT IN VEINS
DEOXYGENATED
PRODUCTION OF ERYTHROPOIESIS
occurs in the yolk sauce, liver and steel before birth
STIMULATED: DECREASE IN OCYGEN, BLOOD LOSS AND CHRONIC LUNG DISEASE
CARBON DIOXIDE INCREASES
ERYTHROPOIESIS (PRODUCTION)
low blood oxygen(hypoxia)causes kidneys and liver to release ___ERYTHROPOIWTIN_____ (hormone) which stimulates RBC production
NEGATIVE-FEEDBACK
DEFINE: BLOOD PLATELETS
cell fragments of megakaryocytes-
DEFINE: PLASMA
liquid portion of blood
related to blood pressure
97% water
