47-2 Flashcards
blood is composed of…
55% liquid and 45% blood solids
what is plasma?
plasma is a straw-colored sticky fluid that is 90% water.
what does plasma do?
-plasma provides nourishment to the blood cells in the form of vitamins, minerals, amino acids, and glucose.
-plasma also carries hormones and transports wastes from the cells to the kidney or the lungs for removal from the body.
-proteins in plasma play an important role in the formation of blood clots.
-plasma also contains antibodies that help the body fight diseases
blood solids include?
white blood cells, red blood cells, platelets
what do red blood cells do?
transport oxygen to cells in all parts of the body.
how is most carbon dioxide transported in the blood?
bicarbonate ions
what is the lifespan of platelets?
7-11 days
what is the lifespan of red blood cells?
120-130 days
what is the life span of white blood cells?
13-20 days
what are white blood cells formed of?
red marrow, lymph nodes, and spleen.
what is agglutination? what causes it?
when two blood types are mixed together, blood clots will form. (clumping of blood)
describe cilia
lines the nasal cavity, trap and filter particles that are inhaled.
inspiration is the process of?
taking air into the lungs.
epiglottis, trachea
the epiglottis covers the trachea when food is being swallowed.
during inspiration(taking air into the lungs) the epiglottis allowed air to enter the trachea.
expiration, larynx
when air is expired sounds are produced by vocal cords by the larynx.
bronchi, bronchioles
trachea branches into two bronchi, each of which leads to a lung. bronchi branch into smaller tubes called bronchioles
alveoli, inspiration
alveoli fill with air during inspiration.
cilia that line the walls of air passageways do what?
clean the inspired air
the rate of breathing is controlled by cells within
the brain
how is most carbon dioxide transported in blood?
as bicarbonate IONS, when CO2 defuses into plasma it interacts with an enzyme that converts CO2 into carbonic acid. bicarbonate ions are very soluble in plasma.
leukocytes, phagocyte
leukocytes help defend the body from diseases.
phagocytes is a type of leukocyte that engulfs invading microorganisms.
antigen, antibody
an antigen is a protein of carbohydrates that causes the body to produce antibodies, which are defensive proteins.
erythrocyte, hemoglobin
erythrocytes synthesize large amounts of hemoglobin, which carries oxygen.
platelet, fibrin
both are involved with blood clotting
