circulatory system Flashcards
circulatory system 2
aka cardiovascular system
controls steady circulation of blood through body by means of heart and blood vessels
what does the circulatory system consist of 4
heart
arteries
veins
capillaries
the heart 3
bodys pump
muscular, cone shaped organ that keeps blood moving in system
heartbeat regulated by vagus (10th cranial) and other nerves in autonomic nervous system
what is an average resting rate
72-80 times per minute
two systems ensuring circulation of blood 2
pulmonary circulation
systemic circulation
pulmonary circulation 1
carries blood from the heart to lungs to be oxygenated
systemic circulation
aka general circulation
carries oxygenated blood from heart throughout body and back to heart
blood vessels 2
tube like structures that include arteries, arterioles, capillaries, venues and veins
transports blood to and from heart and to tissues
arteries 3
thick walled muscular flexible tubes
carry OXYGENATED blood AWAY from heart and arterioles
largest artery is aorta
arterioles 1
small arteries that deliver blood to capillaries
capillaries 2
tiny thin walled blood vessels connecting smaller arteries to venules
bring nutrients to cells and carry away waste materials
venules 1
small vessels that connect capillaries to veins
collect blood from capillaries and drain into veins
veins 4
thin-walled blood vessels that are less Elastic than arteries
contain cup-like valves that keep blood flowing in one direction to the heart and prevent back flow
carry blood containing waste product back to heart and lungs for cleaning and to pickup oxygen
located closer to skin surface
blood 3
nutritive fluid circulating through system
considered connective tissue because it connects body systems together
brings oxygen, nutrients and hormones and removing waste products
functions of blood 5
carries water, oxygen, nutrition, and minerals to all cells and tissues
carries away carbon dioxide and waste product to be eliminated through lungs, skin and kidneys
equalizes body temperature- protecting from extreme heat and cold
protects from harmful bacteria and infection - WBC
closes injured tiny blood vessels by clotting preventing blood loss
red blood cells 1
carries oxygen to body cells
white blood cells 1
perform the function of destroying disease causing microorganisms
platelets 1
contribute to blood clotting process which stops bleeding
plasma 3
fluid apart of blood
90% water and contains proteins, sugars and minerals
acts as delivery system, carrying vital components (nutrients, hormones, minerals) to cells and take away waste
common carotid arteries 2
main source of blood supply to head, face and neck
on either side of neck each divided into internal and external branch
veins of head, face and neck 2
internal and external jugular vein on each side of the neck
external carotid artery 3
- branches off supplying to facial artery- 4th branch
very flexible
branches into smaller arteries to supply cheeks, chin, ocular area, forehead, lips and teeth
function of facial veins 1
return blood to external jugular from same location of arteries
facial vessels importance 1
knowing vessel locations can help avoid bruising and occlusion during dermal filler
Lymphatic/immune system2
vital factor to circulatory and immune system
act as an aid, protect body from disease by developing resistance to pathogens and destroying disease causing microorganisms
parts of lymphatic/immune system 5
liver
lymph
lymph nodes
thymus gland
spleen
lymph vessels
lymph system 3
carries lymph fluid
no pumping mechanism
relies on actions of circulatory system and help of muscles to move fluid
lymphatic draining 1
manually moving collections of lymphatic fluid to drain
liver 6
gland in the abdominal cavity
secretes enzyme for digestion,
synthesizes proteins
detoxifies and regulates sugar levels of blood,
decomposition of RBC
produces hormones for body function
spleen 1
large lymph node that fights infection and detoxifies blood
lymph node 1
gland like structures found in lymphatic vessels
lymph 3
liquid composed of changing components in interstitial fluid as fluid circulates
disperses WBC and cell nutrients (sugars, fats,salts)
absorbs toxins and wastes
lymphatic system functions 4
defence against disease and invading bacteria ad toxins developing resistance
drain interstitial fluid in blood
carry excess fluid, waste, and impurities away from cells
aids in swelling, inflammation, and accumulations in blood vessels
interstitial fluid 4
solution that bathes and surrounds cells
provides cells with nutrients
method of removing cell waste
has components in blood clotting and wound healing
