chp 19 class recording (beginning of chp 20) Flashcards
arteries turn into
arterials
atrial capillaries
simple squamous epithelium
biggest artery we have
aorta
only place where you can have an exchange in blood
capillary level
venous capillaries turn into
vanules
veins
SVC/IVC
the circulatory system on the venous side relies on what
skeletal muscle
and
lying down, your thoracic cage or intercostal muscle. also kind of creates a vacum within the thoracic cavity
layers of vessels are called
tunics
closer we are to the heart what are the sizes of the tunics
larger
what type of blood does the capillary bed consist of
deoxygenated and oxygenated
main transport of deoxygenated blood to oxygenated blood in the capillary bed is called
metarteriole
if exchange is happen ing all the time what type of tissue do you expect to see
simple squamous epithelium
when the kidneys are exchanging fluids and electrolytes what tissue is there
simple squamous epithelium
what are the three types of cappillaries
continuous fenestrated and sinusoidal
capillaries are made up of
endothelial cells for exchange and basal lamina a connective tissue for protection in some areas
where does sinusoidal capillary line
all the open cavities where we need blood flow going to
capillary that lines sinus cavities within organs
sinusoidal capillary
which capillary is mesh like
continuous
where things get exchanged or dropped of in vascular anastomoses
arteriovenous and anastomoses
sturdy walls means… while the flat looking means
artery
viens
means a whole
lumen
a majority of our blood is in the because
veins and veinulues… it is slow to get back to the heart
the systemic arteries only hold about how much blood and why
15% because its constantly moving
what is the spleen? what system is the spleen part of
lymphatic
it stores broken down reticulocytes and lined with tcells and bcells. Its kinda a recycling center for red blood cells
what is cardiac output
heart rate x stroke volume
at rest where is a majority of your blood flow going
digestive system
1
during exercise where is a majority of your blood going? and what is on the back burner?
your skeletal muscle.
your skin and digestive system.
at rest all our cardiac output is going to
the digestive system
volume and pressure in the circulatory system have what kind of relationship
directly proportional
when pressure goes up what happens to volume
volume goes up
what causes viscous blood
polycythemia vera- way too many blood cells
what causes thicker blood
decreased plasma or increased formed elements
what can impact flow of blood
resistance
changing the size of the vessel
the longer the vessel the more what
resistance
the smaller the vessel the higher the
pressure
exception aorta
volume goes up pressure goes
up
when resistance goes up pressure goes
down
when pressure goes up resistence goes
down
arterials have the ability to
vasoconstriction or vasodialate
bigger hose/wider vessel (diameter) the pressure is going to and the volume is and resistance
decrease because there is more room
the change in pressure divided by resistance
blood flow
how to find blood flow
f= delta P/ R
delta means change
blood flow and resistance are
inversely proportional
if flow increases then resistance
decreases
cp= MAP/?
cardiac output = mean arterial output/resistance
flow =
volume
where would you find the highest blood pressure and lowest
highest aorta
lowest coming back to the right atrium
where is the back pressure going to when checking for blood pressure with a sphygmomanometer
left ventricle
what are you assesing when checking for blood pressure
systole/diastole
measure the pressure of a volume in a space
blood pressure
systole/diastole
where is bp 0.0mm hg
Right atrium
pressure of the blood on the vessel wall is known as
blood pressure
average blood pressure
120/80
120/80 is considered what
prehypertension
139/79 you have
hypertension
hypertension means
increased blood pressure
thickness of blood is also known as
viscocity
increased vessel width does what to resistance
decreased resistence
increased vessel length means what to resistance
increased
capillary blood pressure is what relatively… high or low?
relatively low
if the capillary blood pressure was high we would
bust them and not as effectively exchange
if blood volume decreases blood pressure
decreases
CO=
HR* SV
Blood flow=
change in pressure/resistence
volume and pressure are
directly proportional
V^P^ VvPv
CO is
cardiac output (volume)
SV is
stroke volume
resistance and blood flow are
indirectly porportional
is there a direct relationship between resistance and pressure
no
is flow the same as pressure
no
the longer the vessel the what resistance
higher
the longer the vessel the what resistance
higher
has the least resistance and highest pressure
the aorta
Blood pressure=
Cardiac output x peripheral resistance
what’s the difference between blood flow and blood pressure
change in pressure is what we are looking at in blood flow
factors that effect stroke volume
preload
after load
contractility
factors that effect stroke volume
preload
after load
contractility
what is the stretching right before your heart contracts called
preload
back pressure in the atrials chambers
after load
how well each one of our cardiac fibers does contract is called
contractility
the constant blood pressure within our system is called
hydrostatic pressure
hydrostatic pressure of the interstitial fluid means…
surrounding tissue fluid
what causes your surrounding fluid to swell up
salt
pulling pressure
osmotic pressure
if you are dehydrated what will happen to your capillaries
increased osmotic pressure to pull any water into me
osmotic pressure increases in your capillaries when
your body is dehydrated
when would you have an increased pulling in the tissue versus the blood?
when you are hydrated
what are there a bunch of at the point in which the aorta arches
baroreceptors- allowing us to regulate blood flow
more influential than your vasomotor center
cortex and hypothalamus from a stressful emotional situation
when it is colder what happens to our blood pressure
it goes up because of vasoconstriction
adh (antidiuretic hormone) is inhibited by
alcohol
what does ADH do to vasoconstriction
stimulate
the aorta is prone to blockage, and any where below the blockage is affected. Called…
abdominal aortic aneurysm
our drainage system
the lymphatic system
where do we grab the sewage in the lymphatic system
at the lymph capillaries
where does the blood end up clean at
the heart
right atrium
which system in the body only goes one way
lymph
lymphademia means
garbage in there
structures apart of the lympahtic system
spleen
lymphatic tissue
liver
red bone marrow
lymphatic capillaries turn into
lymphatic vessels by skeletal movement, then turn into lymph nodes, turn into trunks, then lymphatic ducts (on right and left)
what are lymph nodes lined with
white blood cells
how much lymph do we make every day
3 liters
starting point for lymph
capillary level where the arterial and venous system come together then it joins a whole other system
int the lymphatic system when we join the heart we join the
subclavian vein
cancer spreads how
the lymph going back to the heart or lungs dropping of that cancer
your right lymphatic duct drains
only from the upper right side of the body…. everything else goes to the thoracic duct on the left side
