✅✅-allows for exchange of gas
what is the function of alveoli? -
the right lung has how many lobes? - ✅✅-3
left lung has how many lobes? - ✅✅-2
what is the function of pleural membrane? - ✅✅-reduces friction when you breath
what are the respiratory muscles? - ✅✅-diaphragm
intercostal muscles
what are the functions of respiratory system? - ✅✅-- supply O2 through body
- get rid of CO2
- filters air
- speech
- smell (think chemoreceptors)
- helps maintain homeostasis
Hyper or Hypoventilation: increases blood pH (acidosis) -✅✅-Hyperventilation
Hyper or Hypoventilation: decreases blood pH (alkalosis) - ✅✅-Hypoventilation
Inhalation or Exhalation?
, ✅✅
- diaphragm contracts, moves down, increasing chest cavity, pressure decreases
- outside air is under more pressure than air inside lungs - -inhalation
✅✅
_________________________________ monitors the level of CO2 in blood, signals
breathing rate when levels are too high - -medulla oblongata
circulatory system consists of what 3 major parts? - ✅✅-- blood
- blood vessels
- heart
✅✅
___________, this system cleans up excess fluids and proteins, returning them to
circulatory system - -lymph vascular system
name the walls of blood vessels: - ✅✅-tunica intima
tunica media
tunica adventitia
function of blood: -✅✅-- helps maintain internal environment by carrying raw
materials
- removes waste
- helps stabilize pH
- hold 5qts of blood
blood is composed of: - ✅✅-RBC
WBC
platelets
plasma
✅✅-transports o2 to cells
function of red blood cells: -
how long can RBC live up to? - ✅✅-4 months
where does RBC form? - ✅✅-in bone marrow
function of WBC: - ✅✅-defend against infection
removes wastes
forms platelets for coagulation
name 5 types of WBC - ✅✅-N.E.M.B.L
neutrophils
, eosinophils
monocytes
basophils
lymphocytes
heart is made of what tissue? - ✅✅-cardiac muscle tissue
this tissue is "self-exciting" - ✅✅-cardiac muscle tissue
what separates the atrium from ventricle? - ✅✅-atrioventricular valve
___________________ prevent backflow - ✅✅-valves
the heart has how many chambers? - ✅✅-4
what is the function of the sinoatrial node "cardiac pacemaker"? - ✅✅-- generates
electrical signals through purkinje fibers, stimulating contraction to fill R ventricle with
blood
- SA node transmits signal to right ventricle through AV valve (tricuspid)
- R ventricle contracts
- AV valve closes, pulmonary semilunar valve opens
- blood pumped out of arteries to lungs
- blood from lungs fills left atrium
- mitral valve (bicuspid) opens, blood fills ventricle
- mitral valve closes and aortic semilunar valve opens
- left ventricle contracts, blood is pumped out of aorta and to rest of body
circulation: blood to heart - ✅✅-coronary
circulation: blood between heart and lungs - ✅✅-pulmonary
circulation: blood to entire body - ✅✅-systemic
✅✅-portal
circulation:
flow of blood from digestive system to liver, then heart -
circulation: flow of blood between heart and kidneys - ✅✅-renal
Name all the types of circulation systems: - ✅✅-coronary
pulmonary
systemic
portal
renal
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