chapter 9/10 anatomy and..

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plasma makes up approximately

55% of blood by volume

the pacemaker of the heart is normally the

SA node

sternum

The bone lying anterior to the heart

tricuspid

The right atrioventricular valve

myocardium

The thickest layer of the heart

interatrial septum

The tissue separating the two upper chambers of the heart

the right atrium receives deoxygenated blood from

The vena cava

eosinophils

are phagocytic and are closely associated with allergic reactions

statements about leukocytes

are the largest circulating blood cells granulocytes have segmented nuclei neutrophils are the most numerous WBCs in circulation bacterial infections stimulate increased production of neutrophils

contraction of the upper chambers of the heart is called

atrial systole

the first "lubb" heart sound is associated with

atrioventricular valves closing

the role of hemoglobin in the red blood cell is to

carry on oxygen and carbon dioxide

When the ventricles are relaxed the semilunar valves are __ and the atrioventricular valves are ___

closed;open

platelets are involve in

coagulation process

Reduction is the hearts circulatory supply is called

coronary ishemia

thrombocytopenia is the

decrease of the amount of platelets

the best description of the heart is that it is

four paired pumps

substances that can be found in plasma

hormones, enzymes, oxygen

leukocytosis is the

increment of the amount of RBCs

monocyte

is the biggest white blood cell

an agranulocytes WBCs

monocytes, lymphocytes

the following are considered a heart layer

myocardium,endocardium,visceral pericardium or epicardium

granular white blood cells

neutrophil, eosinophil, basophil

white blood cells or leukocytes:

neutrophil,eosinophil,monocyte,lymphocytes,basophils

When the ventricles contract, the semilunar valves are ____ and the atrioventricular valves are ____

open;closed

Neutrophils are

phagocytic and are considered as our second line of defense against bacterial infection

blood is composed of

plasma and formed elements

neutrophil

protects us against bacterial infection

eosinophil

protects us against parasite infection

lymphocyte

protects us against viral infection

the second "dup" heart sound is associated with

semilunar valves closing

after coagulation blood is composed of

serum and formed elements

if the shape of RBCs shows significant variation from normal, the alternation is shape is called

sickle cell or Thalassemia

blood flow in the coronary arteries originates at the base of

the ascending aorta

The vessels that supply blood to the heart are called

the coronary artery

the vessels that drain the heart muscle are called

the coronary sinus

anemia is

the decrease of the amount of RBCs

if the normal pacemaker of the heart fails,

the job will be taken over by the AV node

The base of the heart is

the portion that is most superior

ventricular systole is triggered by

the purkinje fibers

platelets are

the smallest blood cells

The right atrium receives blood from

the superior and inferior vena cava

type AB positive blood is considered

the universal receptor blood type because it has no antibodies

structures contained in the mediastinum

thymus,trachea,esophagus,heart,large vessels

Relaxation of the lower chambers of the heart is called

ventricular diastole

blood circulates into the coronary arteries during

ventricular relaxation


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