quiz 1

what does the blood transport in the body?

nutrients, waste, gases, blood cells, and platelets

what 2 things that are transported through the blood considered solids or formed elements with specific functions

blood cells and platelets

why do we need gas in the blood?

cell production

derived from hemocytoblasts in red bone marrow, whether white or red

blood cells

blood ___ cells are capable of forming into many different types of cells

stem

biconcave shape, packed with hemoglobin, and the most numerous blood cell in the body

Red blood cells (erythrocytes)

what do erythrocytes look like under a microscope

solid with no nucleus

what do RBC’s do?

transport oxygen and carbon dioxide, bound to hemoglobin

start as cells with appendages that break off into their mature form

platelets

what do platelets branch off of?

megakaryocytes

where are platelets originally found before they break off into the blood?

on the outside of blood vessels

what does the suffix -phil mean

binds well to something

eat invader cells with specific proteins attached to them

neutrophils

how do neutrophils look under a microscope

multinucleated, with the nuclei being visible because of dye

phagocytic leukocytes that release hormones to attract other cells (chemotaxis)

eosinophils

what do eosinophils look like under the micro scope

2 nuclei connected

produces heprin to inhibit blood clotting ans histamines

basophils

phagocytic leukocytes that have a “u” shaped nucleus

monocytes

leukocytes involved in immunity. they have a smooth, spherical, giant nucleus

lymphocytes

anything in the body using oxygen is apart of this circuit. the lungs would not be apart of this system because they supply blood

systemic circuit

where the exchange of material happen between veins and arteries

capillarys

what do capillaries do?

connect arterioles to venules. they are very porous to allow for chemical exchange

where is the serous membrane found?

around the heart

muscle layer of the heart

myocardium

lines inside structures of the heart like connective tissues

endocardium

what is the hole in a fetal septum called?

foramen ovale

an artery in a fetus that connects the pulmonary trunk to the aorta, allowing it to bypass the lungs

ductus arteriosus

why does ductus arteriosus and foramen ovale close/become nonfunctional within the first week after birth

due to a drop in pressure