wuestions 26-36 Flashcards
describe how nervous regulation of blood pressure occurs?
it can increase arterial pressure stretching wall of blood pressure triggering baroreceptors
where is baroreceptors located?
choroid sinus
during blood pressure regulation, what other organs are involved?
CNS, cardiovascular system, kidneys and adrenal glands
when precapillary sphincters are open, how does blood flow through capillary beds?
blood will move in associated branches of capillary bed
when precapillary sphincters are closed, how does blood flow through capillary beds?
it will flow directly from arteriole through thoroughfare channel to venule end
what determines if sphincters are open or not?
if they need nutrients or O2
how can you tell if a capillary is continuous or fenestrated?
continuous are more smooth looking and fenestrated have a bunch of dots
what force pulls fluid out of capillaries?
Hydrostatic pressure
What force pulls fluid back into the capillary?
osmonic pressure
what substance doesn’t leave capillaries?
blood cells and protein
when there is a net loss of fluid, what picks it up and sends it back to the heart?
the lymph capillaries or lymphatic system
where are the inguinal lymph nodes located?
legs or groin
where are axillary lymph nodes located?
arm pits
where are cervical lymph nodes located?
neck
what are the function of lymph nodes?
they contain lymphocytes which helps the body fight infections and diseases
where does the thoracic lymph duct drain?
lower limbs, thorax, left half of face and left arm
where does the right lymphatic lymph duct drain?
right arm and right side of face and neck
what is the function of the spleen?
blood filter, which fights infections
what is the function for tonsil stones?
filters out bacteria from food and air so it can protect us from sicknesses
what is cisterns chili?
an enlarged terminals of the thoracic ducts
