Shared Flashcard Set

Details

Chapters 18-19
Exam 2
219
Anatomy
Not Applicable
02/13/2008

Additional Anatomy Flashcards

 


 

Cards

Term
what is the agglutinogens?    
Definition

antigens

 

act as finger print; identity of the RBC 

Term
A and B glycoproteins on the surface of RBCs function as...  
Definition
enzymes
Term
Type A Blood
Definition

antigen A on surface

 

anti B

 

Will agglutinate when exposed with Anti A 

Term
Type B Blood
Definition

Antigen B

 

Anti A

 

will agglutinate when exposed to Anti B 

Term
Type AB Blood
Definition

Antigen A and Antigen B

 

has neither Anti-A nor Anti-B 

Term
What blood type is a universal recipient?
Definition
Blood type AB
Term
Type O
Definition

has neither antigen on surface

 

has both anti A and anti B

 

 

Term
what blood type is a universal donor?
Definition
Type O
Term
What is the Rh factor?
Definition

found in monkeys

 

if found in the blood it is Rh+

 

Antigen D 

Term
Rh-
Definition
no complications following the first exposure to Rh antigens
Term
erythroblastosis fetalis
Definition

hemolytic disease of newborn

 

mother's antibodies can cross placental barrier 

Term

the first exposure of Rh+ blood would be fatal for a person with Rh- blood?

 

True or False 

Definition
False
Term
to create a universal blood cell that can be used in all blood transfusion, one can...
Definition
remove the antigen using glycosidases
Term
how is agglutination caused?
Definition
the interaction of antigens on the surface of the red blood cells and the antibodies in the blood plasma causes problems in blood transfusion
Term
what is the clumping of blood cells called?
Definition
agglutination
Term
antibodies have how many binding sites?
Definition
two
Term

break down the word

 

hemolysis

 

Definition

hemo= blood

 

lysis=breaking down 

Term
base of the heart
Definition
attached to the large blood vessels; lies beneath rib cage
Term
apex
Definition

distal end

 

PMI- point of maximum intensity  

Term

break down the word

 

pericardium 

Definition

peri= around

 

cardium= heart 

Term
what does the pericardium do?
Definition
encloses the heart and the proximal ends of the large blood vessels
Term
what are the three layers of the pericardium?
Definition

fibrous pericardium

 

visceral layer

 

parietal layer 

Term
the outer layer of the pericardium is known as and what does it do?
Definition

fibrous pericardium

 

it protects the heart 

Term
the two inner layers are known as...
Definition
serous
Term
what layer is adherent to the heart
Definition
visceral
Term
what layer is adherent to the fibrous pericardium?
Definition
parietal layer
Term
what is known as the space between the parietal layer and the visceral layer?
Definition
pericardial cavity
Term
what does the pericardial cavity contain?
Definition
small amounts of serous fluid
Term
what does the serous fluid act as?
Definition
lubricant to reduce the friction between membranes as the heart moves
Term
pericarditis
Definition

inflammation of the pericardium

 

due to viral or bacterial infection

 

hinders production of serous fluid

 

painful

 

makes a different noise with the stethoscope 

Term
name the three layers of the heart
Definition

epicardium

 

myocardium

 

endocardium 

Term
what does the epicardium do?
Definition

protective outer layer

 

sercrets serous fluid 

Term
The function of the serous fluid is to....
Definition

minimize friction

 

minimize heat

 

heart function in pumping blood

 

 

Term
describe the myocardium
Definition

middle layer

 

thick

 

consists largely of the cardiac muscle tissue

 

contraction layer  

Term
describe the endocardium  
Definition

inner layer

 

contains blood vessels and muscle fibers

 

protective inner lining of the chambers and valves 

Term
what structure of the heart wall consumes the most energy?
Definition
myocardium
Term
what are the upper chambers of the heart?
Definition
the two atrias
Term
the two ventricles are considered which chambers?
Definition
lower chambers
Term

the atrium has a thin wall

 

true or false? 

Definition
True
Term
what are the auricles?
Definition
small ear like projections
Term
what muscles does the right atrium contain?
Definition
pectinate muscles
Term
what is the shallow depression that was once a opening during the fetal heart called?
Definition
fossa ovalis
Term
describe the left atrium
Definition
smooth wall
Term
what do the ventricles do?
Definition

force blood out of heart arteries

 

thick wall of muscles  

Term
what does the interatrial septum do?
Definition
seperate right from left atrium
Term
what does the interventricular septum do?
Definition
seperate right from left ventricle
Term
what is the pulmonary circuit?
Definition

right side of heart

 

 

heart ----> lungs

Term
what does the systemic circuit do?
Definition

left side of heart

 

heart ----------> body tissues  

Term
what is the coronary circulation?
Definition
within the heart
Term

vessels called veins/arteries. oxygenated blood are carried only in arteries. deoxygenated blood is only carried in veins

 

true or false 

Definition
false
Term
if the blood is coming from the heart what is it....a vein or artery?
Definition
artery
Term
if the blood is going to the lungs is that a vein or artery?
Definition
vein
Term
which structure in an exception to the general principle surrounding blood vessels oxygen vessels?
Definition
pulmonary artery and pulmonary vein
Term

where does the right side of the heart receive blood from?

Definition

superior vena cava

 

inferior vena cava

 

coronary sinus (collects from itself) 

Term

what type of blood is on the right side of the heart?

 

oxygenated or deoxygenated 

Definition

deoxygenated

 

high in CO2 

 

low in O2  

Term
locate the coronary sinus and what does it do?
Definition

[image]

 

blood drainage from the heart (myocardium)  

Term
what kind of valve does the right atrium and right ventricle have?
Definition

tricuspid

 

blood flow in one direction  

Term
what are the string like cords that attach cusps and ventricles on the right side of the heart called?
Definition
chordae tendinae
Term
what do the chordae tendinae do and where do they originate?
Definition

prevent the cusps from swining back into the atrium

 

originate from the papillary muscle 

Term
What side of the heart is much thinner than the other?
Definition

right side

 

pumps only the lungs  

Term
where does the right ventricle exit from?
Definition

pulmonary trunk which turns into the pulmonary arteries to the lungs

 

must pass through the semilunar valve (pulmonary valve)  

Term
is there chordae tendinae with the semilunar valves?
Definition
No
Term
what do the semilunar valves do?
Definition
prevents the back flow of blood to ventricles
Term
is the left side of the heart systemic or pulmonary?
Definition
systemic
Term

the blood returns from the lungs to the left atrium in which way?

 

oxygenated or not 

Definition
oxygenated
Term
what is another name for the bicuspid valve in the left atrium?
Definition
mitral valve
Term
where is the blood forced on the left side of the heart?
Definition
through the aorta
Term
what are the first two branches of the aorta called and what do they do?
Definition

right and left coronary arteries

 

supply blood to the tissues of the heart 

Term
where does the coronary sinus drain empty into?
Definition
right atrium
Term
what purpose does the coronary circuit serve?
Definition
it delievers 1/20 of the blood supply necessary to support heart function
Term
cardiac veins drain the capillaries of the....
Definition
myocardium
Term
what are things associated with a mitral valve prolapse?
Definition

chest pain

 

fatigue

 

anxiety

 

 

Term
do the artial walls relax or contract while the ventricular walls relax
Definition
contract
Term
how do we get the "lubb dubb" sound?
Definition

contraction and relaxation of the heart tissues

 

opening and closing of the heart valves  

Term
explain the lubb sound
Definition

first sound

 

ventricular contraction -systole

 

tricuspid and mitral valve slamming shut 

Term
explain the dubb sound
Definition

second sound

 

ventricular relaxation-diastole

 

pulmonary and aortic valves  

Term
the type of valve in the pulmonary and aortic is called....
Definition
semilunar valve
Term
what is arrbythmias?
Definition
uncoordinated atrial and ventricular contractions
Term
explain fibrillation  
Definition

contractions become rapid, irregular and out of phase

 

SA node no longer in control  

Term
explain defibrillation
Definition
electrical shock to the heart interrupts chaotic fibrillations and attempts to restore SA control
Term
what is stroke volume?
Definition
volume of blood pumped out by one ventricle with each beat
Term
what is cardiac output?
Definition

amount of blood pumped out by each ventricle in one minute

 

heart rate x stoke volume=cardiac output  

Term
where do the electrical changes occur during a cardiac cycle?
Definition
myocardium
Term
what conducts the electrical currents that can be detected on the surface of the body?
Definition
body fluids
Term
the P wave corresponds to the what of the atrial fibers
Definition
depolarization
Term
when the ventricle muscles repolarize slowly and reproduce which wave do they make?
Definition
T wave
Term
The QRS wave is repolarizing or depolarizing of the ventricules
Definition
depolarize
Term
sympathetic systems do what to the heart rate?
Definition

accelerates heart rate

 

ex. running, excitement  

Term
what does parasympathetic systems do to the heart rate
Definition
slow down
Term
sympathetic systems are apart of the extrinsic regulation of heart beats. What does it secrete?
Definition
norepinephrine
Term
baroreceptors found in the aortic arch detect changes in what?
Definition
blood pressure
Term
what is the normal resting heart rate?
Definition
70 bpm
Term
what do the parasympatheric fibers release?
Definition
acetylcholine
Term

parasympathetic system can change heart rate in either direction

 

true or false 

Definition

true

 

ex. decrease acetylcholine, increase heart rate; increase acetylcholine, decrease heart rate 

Term
what hormone is from the adrenal medulla and increases the heart rate?
Definition
epinephrine
Term
what hormone takes longer to react but causes a sustained increase in heart rate?
Definition
thyroxine from the thyroid gland
Term

tachycardia is a decrease in heart rate and can be caused by low body temp. drugs

 

true or false 

Definition

false

 

increased heart rate

 

increased body temp.

 

drugs

 

stress  

Term
bradycardia can be caused by what?
Definition

drugs

 

low body temp

 

Term
what are the three major types of vessels?
Definition
arteries, capillaries and veins
Term
what type of vessel carries blood to the heart?
Definition
veins
Term
what type of vessel carries blood away from the heart?
Definition
arteries
Term
what are the three layers of blood vessels?
Definition

tunica intima

 

tunia media

 

tunia adventitia  

Term
what do large vessles contain?
Definition
vasa vasorum
Term
what does the tunia intima do?
Definition

separates the blood from the vessel wall

 

helps to prevent clotthing by secreting chemicals that inhibit platelet aggregation

 

provides a smooth surface  

Term
the middle layer of blood vessels is the tunica media. What does it do?
Definition

smooth muscle and elastin fibers

 

gives the vessels elasticity  

Term
what is the outer most layer of blood vessels do and made of?
Definition

collagen fibers  

 

large vessels

 

increase the tensil strength of the vessel  

Term
when do arteries carry blood?
Definition
under high pressure
Term
what are the three types of arteries?
Definition

elastic

 

muscular

 

arterioles  

Term
explain elastic arteries
Definition

thick walled arteries near the heart

 

contains lots of elastin

 

keeps blood flow continuous rather than stop/start 

Term

the muscular arteries deliever blood to body organs

 

true or false  

Definition
true
Term
when are the muscular arteries most active?
Definition
during vasoconstriction
Term
what is the smallest of the arteries?
Definition
arterioles
Term
what do the small arterioles contain?
Definition
smooth muscle and endothelial lining
Term
what are capillaries?
Definition

connectors

 

exchange between blood and interstitial fluid 

Term

capillaries are the biggest blood vessel

 

true or false  

Definition

false

 

they are the smallest  

Term
what do the capillaries connect?
Definition
smallest arterioles and smallest venules
Term
where are capillaries only found?
Definition
tunica intema
Term
what are the three types of capillaries?
Definition

continuous

 

fenestrated

 

sinusoidal  

Term
what are the most common of capillaries?
Definition
continuous
Term
what are the gaps in the membrane called in a capillary?
Definition
intercellular clefts
Term
what do fenestrated capillaries have?
Definition
pores called fenestrations
Term
where are fenestrated capillaries located?
Definition

where absorption or filtration takes place

 

ex. small intestine

 

kidneys 

Term
what are the discontinuous capillaries known as?
Definition
sinusoid
Term
where are sinusoid capillaries found?
Definition

liver

 

bone marrow

 

lymph tissue 

Term
what capillary is associated with Kupffer cells that destroy bacteria?
Definition
sinusoid
Term
how are capillaries made; their walls, layers?
Definition

walls are endothelium, single layer

 

form a semipermeable layer through which the exchange of gases and wastes take place  

Term
what is the most important means of transfer in capillaries?
Definition
diffusion
Term
what is the order of blood vessels?
Definition

arterie-->arterioles--->capillaries---->

venules--->veins--->heart

Term
what part of the body has the least permeable capillaries and which has the most?
Definition

the brain has the least

 

the bone marrow has the most  

Term
do the capillaries have sphincters that regulate the opening and closing?
Definition
yes
Term
why are capillaries regulated by sphincters?
Definition

they don't have smooth muscles so they cant

regulate blood flow  

Term
what are venules?
Definition
microscopic vessels that emerge from capillaries and merge to form veins
Term

the walls are similiar in veins as in arteries?

 

true or false  

Definition
true
Term

veins dont have valves

 

true or false 

Definition
false, they do have valves to maintain the blood flow in one direction
Term
what do veins function as?
Definition
blood reservoirs
Term
of the following cardio components, which contains the majority of the body's blood volume at anyone time?
Definition
systemic veins and venules
Term
how are varicose veins started?
Definition

stress--->vein dialation--->

valve malfunction  

Term
what are merging blood vessels known as?
Definition
vascular anastomoses
Term
what do vascular anastomoses do?
Definition
provide alternate pathways
Term
what are the three tersm for circulation?
Definition

blood flow

 

blood pressure

 

resistance 

Term
define the term blood flow
Definition
volume of blood flowing through a structure/time
Term
define blood pressure
Definition
force on the vessel wall based on the blood
Term
what is blood pressure measured in?
Definition
mm/Hg (mercury)
Term

blood flow and blood pressure are directly

proportional

 

true or false  

Definition
true
Term
what is resistance in terms of circulation?
Definition
opposition to flow friction
Term

blood flow is directly proportional to resistance

 

true or false  

Definition

false

 

they are indirectly proportional  

Term
define viscosity
Definition

the ease with which molecules flow past one another

 

Term
what factors increase viscosity?
Definition
blood cells and plasma proteins
Term

anemia will _________ of blood

 

increase or decrease the viscosity  

Definition
decrease the viscosity
Term
of the factor that affects peripheral resistance, which is changing more frequently?
Definition
vessel diameter
Term
what are the three systemic blood pressures?
Definition

arterial BP

 

venous BP

 

capillary BP 

Term
what does arterial BP do?
Definition

reflects two factors of the arteries close the heart

 

elasticity

 

amount of blood forces into them  

Term
is arterial BP constant or fluctuates
Definition
fluctuates
Term
what is systolic pressure?
Definition

the maximum pressure during ventricular

contraction  

Term
what is diastole pressure?
Definition
when ventricles relax
Term

how do you calculate MAP (mean arterial pressure)

 

Definition

diastolic pressure + 1/3 pulse pressure

 

pulse pressure = systolic- diastolic  

Term
a person has 140 MM systolic and 80 MM diastolic. what is their MAP
Definition
100 MM Hg
Term
what is the range for capillary BP
Definition
20-40 mm Hg
Term
why is this capillary BP desired to be low?
Definition

otherwise it would rupture the thin walls of the

capillaries  

Term
how do you know when a vein has been cut?
Definition
even blood flow
Term
what happens when an artery is lacerated?
Definition
blood spurts
Term
what is the only vein that doesn't drain into the right atrium?
Definition
pulmonary vein
Term
what is the pressure in the right atrium called?
Definition
central venous pressure
Term
what condition results in lowering the heart rate
Definition
bradycardia
Term
what are two factors that increase the CVP
Definition

increase blood volume

 

widespread venoconstriction  

Term
where is the systemic pressure the highest?
Definition
aorta
Term
where is the steepest change in blood pressure?
Definition
arterioles
Term

the BP is responsible for returning the blood in the vena cava to the right atrium

 

true or false 

Definition
false
Term
what is the formula for blood pressure
Definition
Cardiac output x peripheral resistance
Term
which factor affecting blood pressure; which is the most easily regulated?
Definition
vessel diameter/cardiac output
Term
what short-term things control blood pressure?
Definition
neurons, hormones and neurotransmitter
Term
what do the short term controls do for the blood pressure?
Definition

alters peripheral resistance

 

changes the diameter of blood vessels 

Term
what do baroreceptors do?
Definition
sense the change in BP
Term
what do chemoreceptors do?
Definition
sense the change in pH, ions....etc
Term
what is the pressure of baroreceptors within the arterial walls
Definition
high
Term
what is the pressure of baroreceptors within the venous walls
Definition
low
Term
where is the cardiovascular center?
Definition
medulla of the brain
Term
what is the cardiac center made up of?
Definition
sympathetic and parasympathetic
Term
what two centers make up the cardiovascular center
Definition
cardiac center and vasomotor center (found in the brain)
Term

the sympathetic increase heart activity

 

true or false  

Definition
true
Term
how is the vasomotor center connected to the heart? what nerve
Definition
Vagus nerve
Term
increase blood pressure stimulate the cardioinhibitory center to do what. (2)
Definition

increase vessel diameter

 

decrease heart rate, cardiac output, PR and BP  

Term
declining blood pressure stimulate the cardioacceleratory center to do what? (1)
Definition
increase cardiac output and PR
Term
low blood pressure stimulates the vasomotor center to do that with the blood vessels?
Definition
constrict
Term
what do baroreceptors protect against?
Definition
steep changes in blood pressure
Term
where is the blood pressure in baroreceptors low?
Definition
veins and heart atria
Term
where is the blood pressure in the baroreceptors high?
Definition
arteries
Term
are the set points for baroreceptors set higher or lower than normal?
Definition

higher

 

100-120 systolic

 

60-80 diastolic  

Term
predict what might happen in peripheral resistance in arterioles supplying skeletal muslce when pH levels drop?
Definition
vasodilation in vessels supplying skeletal muscle
Term
chemoreceptors detect changes in what?
Definition

Blood O2 levels

 

CO2 levels

 

blood H+ levels  

Term
below diastolic pressure, the baroreceptors are...?
Definition
silent
Term
what does the renal system (long term control) regulate?
Definition
blood volume
Term
what organ acts directly and indirectly to maintain long-term blood pressure
Definition
kidneys
Term
what is the indirect renal mechanism
Definition
reninangiotensin mechanism
Term
what enhances renal reabsorption and stimulates ADH release?
Definition
aldosterone
Term
decreasing BP causes the release of renin, which triggers the release of what
Definition
angitotensin II
Term
endothelium derived factors and prostaglandins are both what
Definition
vasoconstrictors
Term

ANP causes blood volume and pressure to decline

 

true or false  

Definition
true
Term
what chemicals cause a decrease in blood pressure?
Definition

nitric oxide

 

alcohol

 

inflammatory chemicals  

Term
how do you monitor circulatory efficiency?
Definition

vital signs

 

pulse and blood pressure

 

respiratory rate

 

body temperature  

Term
low BP in which systolic pressure is below 100 mm Hg is known as what
Definition
hypotension
Term
condition of sustained elevated arterial pressure of 140/90 or higher is known as?
Definition
hypertension
Term
what is atherosclerosis?
Definition

deposition becomes hard due to plaque

 

inflammation  

Term
how is the blood flow through an organ controlled?
Definition
modifying the diameter of local arterioles feeding its capillaries
Term

blood flow doesn't need to be constant with blood pressure

 

true or false  

Definition

false

 

blood flow should be kept constant with BP  

Term
what are two intrinsic mechanisms for autoregulation of bloow flow?
Definition

metabolic

 

myogenic (muscle) 

Term
what happens to the nutrients and oxygen level in metabolic controls?
Definition
decrease
Term
what is delivered to the tissues in metabolic controls?
Definition

nitric oxide

 

oxygen  

Term
does the nitric oxide in metabolic controls induce vasoconstriction or vasodilation?
Definition
vasodilation
Term
what is blood perfusion?
Definition
blood flow through tissues
Term
in myogenic controls, inadequate blood perfusion or high arterial pressure are what....
Definition
autoregulatory
Term

increased vascular pressure in myogenic controls will do what?

 

vasoconstriction or vasodilation

 

Definition
vasoconstriction 
Term
when is long term autoregulation turned on
Definition
when the short term autoregulation cannot meet tissue nutrient requirements
Term
 formation of new vessels is known as what in long term autoregulation?
Definition
angiogenesis
Term
bad angiogenesis can result in what?
Definition
new supply of cancer growth
Supporting users have an ad free experience!