Studied by 16 peoplemy heart beats for you. someone stop it.
What path does blood take in the vessels around the body?
artery, arteriole, capillary, venule, vein
reading an EKG
Which of these pathways best describes the blood flow of the heart starting with deoxygenated blood first entering the heart and ending with oxygenated blood leaving the heart to the body?
right atrium, right ventricle, pulmonary trunk, lungs, left atrium, left ventricle, aorta, body
Which chamber of the heart has the thickest myocardium
left ventricle
Which type of vessel is the vena cava?
vein
Which blood type is considered the universal donor?
O
Which of these cells helps to combat inflammation in allergic reactions?
Eosinophils
Where is the primary site for blood formation in adults?
bone marrow
Which blood vessel delivers deoxygenated blood from the head and neck to the heart?
superior vena cava
Where do worn-out blood cells go to get broken down?
liver
bone marrow
spleen
all of these
all of these (liver, bone marrow, spleen)
Which blood type would be able to donate to an O type person?
O
What gives whole blood its red color?
hemoglobin
The papillary muscles connect directly to the
chordae tendinae
The process of blood formation is called
hemopoises
Which of these blood types is considered the universal receiver?
AB
Substances undergo capillary exchange by means of
simple diffusion and bulk flow
What would a doctor see in a blood sample if it was positive for an antigen they were testing for blood typing?
clumping
Which of these contributes to plug formation?
calcium
fibrin
platelets
all of these
all of these (calcium, fibrin, platelets)
Which of these is considered a semilunar valve?
vein
tricuspid
bicuspid
pulmonary
pulmonary
In regards to blood formation, what is the main difference between a fetus and an adult?
fetal blood is made in multiple locations while adult blood is made in only one
These cells release antibodies to combat infection
B cells
When the nurse takes someone’s blood pressure, they use a stethoscope to hear the heartbeat after the cuff is tightened. Which of these statements is true?
The nurse tightens the cuff until the heartbeat stops, then slowly deflates the cuff until the heartbeat starts again. This is recorded as the systole.
The chordae tendinae
helps prevent AV valves from protruding into the atria when the ventricles contract
The portion of the EKG that corresponds to atrial systole is
P wave
Which of these is NOT considered a formed element of blood?
red blood cells
platelets
globulins
monocytes
globulins
In the early times of blood transfusions, why did so many people die?
Antigens from the RBS reacted badly with antibodies from another’s plasma
The normal pacemaker of the heart is the
SA node
Which of the following sequences best describes the pathway of an action potential through the heart’s conduction system?
SA node, AV node, AV bundle, right and left bundle branches, Purkinje fibers
Platelets release enzymes to help decrease blood flow during which stage
platelet release reaction
Which of these vessels layers consists only of endothelium and a basement membrane?
artery
vein
capillary
all of these
capillary
Heart rate and strength of contraction are controlled by the cardiovascular center, which is located in the
medulla
Which of the following statements describes the pericardium
it anchors the heart to the diaphragm
Heart sounds are produced by
closure to the heart valves
Pulmonary circulation includes which of the following organs?
stomach
lungs
brain
liver
lungs
Which of these cells develop into wandering macrophages?
monocytes
Venous return to the heart is enhanced by all of the following EXCEPT
skeletal muscle milking
inhalation during breathing
valves in the veins
vasodilation
vasodilation
Which of these vessels contain valves?
arteries
capillaries
veins
all of these
veins
Which of these factors contribute to blood pressure?
length of blood vessel
size of lumen
blood viscosity
all of these
all of these (length of blood vessel, size of lumen, blood viscosity)
In normal heart action,
\n the two atria contract together, and then the two ventricles contract together
Which of these cells releases histamine, heparin, and serotonin?
eosinophils
monocytes
neutrophils
basophils
basophil
Blood flows through blood vessels because of the
pressure gradient
If a patient has a high eosinophil count, they probably have a
parasitic infection
In an EKG, which of the following statements is true?
The atria contract first and don't have to pump blood to the body, only the ventricles, so the P wave is smaller
Vessels that exchange nutrients, wastes, oxygen, and carbon dioxide in the blood and tissues are called
capillaries
Which of these vessels has the thickest smooth muscle layer?
artery
Which of these is the primary protein in red blood cells?
hemoglobin
What protein carries free iron in the blood?
transferrin
When taking a blood pressure, what does the top number mean?
It's called systole and it's the contraction rate.
On an EKG, what does the T wave show?
ventricle diastole
On an EKG, what does the P wave show?
atrial systole
On an EKG, what does the QRS complex show?
ventricle systole
Note
Flashcard