Chp 20 Class recording Flashcards
hydrostatic vs osmotic pressur
hydrostatic- pressure of fluid within blood vessels or tissue
osmotic- pulling pressure
osmotic pressure is ____ inside the blood vessels during dehydration
increased
vasomotor (blood vessel movement) center is?
taking over your heart rate and blood pressure
the ability to constrict or dilate is known as
vasotone
where is the vasomotor center located
the medulla oblongata
what can take over your heart rate and blood pressure
vasomotor center
what is the medical word for fainting
snchopy
what is the lymphatic system intertwined with
the immune system
lymph pathway
lymph capillaries to lymph vessels to lymph nodes to lymph trunk to lymph ducts to subclavian vein to Right atrium
if we are coming back to the heart with venous blood we know that venous mixes with
lymph, but we hope that by the time it gets to the heart the venous blood is clean
what are like the car washes
lymph nodes
lymph flow is different how
right upper one-third of the body drains from the right lymphatic duct and everything else (left side of head, arm and both legs) all drains from the thoracic duct on the left side
where do the thoracic duct and lymphatic duct eventually combine
into the subclavian vein which leads to the inferior vena cava,
what is the attachment site for the lymphatic system to venous system
the subclavian vein
what beings right around L-2 that is a swollen lymph vessel known as
cisterna chyli
why is cisterna chyli swollen
because it stores fat,
where does cappilary fat get stored in our lymphatic system
cisterna chyli
what are lymphnodes lined with
lymphocytes
what are b cells and t cells
lymphocytes
what lymphocytes come from the thymus
t cells
what lymphocytes come from bone marrow and go directly into the blood stream
b cells
why are our secondary lymphatic organs there
to do the same thing as lymphocytes wpuld do in a lymph node but in bigger organs
where would we have a lot of lymph
open orphases… ability to get something from the external environment. like tonsils, lymph nodes
where are lymphnodes more concentrated
supraclavicular region
MALT-peyers patches
Mucosa associated lymphatic tissue
what lines the intestinal walls
MALT or peryer’s patches
what lines our
GI tract, respiratory tract, urinary tract, reproductive tract
Mucosa associated lymphatic tissue
what is lymphatic tissue composed of, except for the thymus
reticular fibers
what is the thymus composed of
adipose fibers
where does the thymus gland sit
on the superior portion of our aorta (ascending aorta)
what is the activation center for all of our tcells, until an actual fight
thymus
what lymphatic organ is huge at childhood and gets smaller and smaller
thymus
what produce hormones in the thymus gland
thymocytes
what hormone do thymocytes produce
thymocin
what does thymocin do
activate the tcells
what is the outer portion of the thymus made of
immature t cells
what is the medulla of the thymus made of
mature t cells
what does a lymphnode look like
a kidney, because they both filter
what are the two vessels in the lymphnode
sends lymph into the lymphnode from the mesh capillaries on our way to the trunk
what are the compartments of the lymphnode lined with
lymphocytes (macrophages)
what is the function of a lymphnode
to filter lymph
what are the internal vessels called that get lymph in
two afferent lymphatic vessels
what are the vessels called that enter the lymph node
two afferent lymphatic vessels
where does the lymph exit the lymphnode
the singular efferent vessel
do you enter or exit with more into a lymphnode and why
enter with more because of the two afferent vessels, because we have filtered it out and only exiting with clean fluid
how can cancer metastasis
through lymphnodes
what lymphatic organ is made up of reticular tissue but has a fibrous capsule on the outside (connective tissue)
spleen
what quadrant is the spleen in
left upper quadrant
what is the spleen attached to
your stomach
what are the two major portions of a spleen
red pulp
white pulp
where are all our broken down red blood cells, immature reticulocyte, and hemoglobin
red pulp of your spleen
