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74 Cards in this Set

  • Front
  • Back
Endogenous substance that makes the heart beat faster and stronger
Substance that makes the heart beat slower and stronger
Substance that facilitates the release of Ach from parasympathetic nerve endings
Substance that mimics the action of epinephrine by inhibiting the action of phosphodiesterase
Substance that stimulates the acetylcholine receptors of autonomic ganglia
Substance that blocks the acetylcholine receptors
The drug used in this exercise that helps people with arterial fibrillation
The drug used in this exercise that is used to ophthalmologists to dilate pupils
The term hyperkalemia means
High blood potassium
The pacemaker region of the heart is the?
SA node
The conducting tissue of the heart located in the Interventricular septum is the
Bundle of his
Indicate the electrical events that produce each of these waves
P wave
QRS wave
T wave
P waves – arterial depolarization
QRS - ventricle depolarization / contraction
T wave is the ventricle relaxation
The electrical synapse between adjacent myocardial cells are called
Gap junction / intercalated disc
An abnormally fast rate of beat is called _________ an abnormally slow rate is called ____________
An Abnormally long P-R interval indicates a condition called _______________
AV blockage
Leads I, II, and III are collectively called the ________leads
Standard lib leads
Which ECG wave must occur before the ventricles can contract?
Which ECG wave must occur before the ventricles can relax?
What is the value that helps in the venous system
Venous valves
The ECG wave that occurs at the beginning of ventricular systole is the ______ wave
The ECG wave that occurs at the end of systole and the beginning of diastole is the __________ wave
The ECG wave completed just before the end of ventricular diastole is the __________ wave
The nerve that increases the rate of discharge of the SA node is a _________ nerve
Sympathetic fibers
The specific nerve that, when stimulated, causes a decrease in the cardiac rate is the
Parasympathetic fibers
The scientific term for insufficient blood flow to the heart muscle is
Myocardial ischemia
Depolarization of the atria produces the _________ wave
The difference in polarity between the Interventricular septum and the lateral walls of the ventricles produces the _________ wave
The mean electrical axis is determined using two bipolarization to the
Lead I and lead III
Hypertophy of the left ventricle would shift the mean axis of depolarization to the
The hepertrophied ventricale (Left)
A blockage in conduction in the right branch of the bundle of _________ would cause the mean axis of depolarization to shift to the
The scientific term for listening carefully (as with a stethoscope) is
The first heart sound (lub) is caused by
Closing of the AV vaves ventricles relax
During which phase of the cardiac cycle (systole or diastole) does the first heart sound occur
The second heart sound is caused by
Closing of semilunar valves
The second heart sound occurs at the (beginning or end) of _________ (systole or diastole) _________
Beginning of diastole
Abnormal heart sounds are called
Heart murmur
The first heart sound (lub) is correlated with which ECG wave
End of the QRS
The second heart sound (dub) is correlated with which ECG wave
End of T
When blood pressure measurements are taken, the first sound of Korotkoff occurs when the cuff pressure equals the ____________ pressure
The last korotkoff sound occurs when the cuff pressure equals the _________ pressure
The sound of Korotkoff are produced by
Turbulent flow of blood
Suppose a person’s blood pressure is 168/112
a) what is the systolic pressure
b) what is the diastolic pressure
c) what is the pulse pressure
what is the mean arterial pressure
a) 168
b) 112
c) 56
d) 130
What condition does the person described in question 4 have
The arterial blood pressure is directly proportional to two factors: the __________ and the __________
Cardiac output
Peripheral resistance
The scientific name of the device used to take device used to take a blood pressure reading is the
As a person gets older, the maximum cardiac rate
If a person has athlete’s bradycardia , the resting heart rate is _________ than the average
The condition described in question 2 is caused by
Maximum cardiac rate
Define the aerobic capacity
Maximum rate of O2 consumption by body
Define the lactate threshold
When the body enters anerobic exercise
The primary cause of the higher aerobic capacity of endurance trained athletes is
Higher maximum cardiac output
Na and K diffusion sequences
na+ flow in K flows out restablising resting memberane then na flows back in
electroencephalograph - alpha, beta, theta, delta
Afferent neurons
sensory nerons CNS - dorsal
efferent neurons
out of CNS ventreal
ventral root of spinal cord
motor neurons
dorsal root of spinal cord
sensory neurons
cutaneous senstion
tempauter, touch, and pain
meissners corpuscle
sustained pressure
merkel's disc
sustained touch
central sulcus
front senosry, back is motor
how to test for noraml vision
snellen eye chart
one hemoglobin molecule contains __________ heme groups; each heme group normally combines with one molecule of ___________
central ferrous ion Fe2+
amount of red blood cell production by bone marrow
amount of rbc in 1 cubic millimeter of blood
determining RBC ratio of volume of packed red bloold cells to total blood volume
high O2 content
hemoglobin combined with carbon monoxide
Fe3 hemogloin in oxideized state
how does body get ride of red blood cells
phagocytes, fixed reticuloendothelial system
iron from old RBC released in the bile can lead to jaundice