Science Cardiac and Respiratory Flashcards
What is the upper respiratory system consist of?
Nose, nasal cavity, mouth, pharynx, larynx
What is the lower respiratory system consist of?
Trachaea, lungs, bronchial tree
What is the pneumonic to remember the tracing of the airway
No Need Mom Please Let Tanya Bring Beer: Nose, Nasal Cavity, Mouth, Pharynx, Larynx, Trachaea, Bronchi, Bronchial Network
what separates the thoracic cavity from the abdominal cavity?
Diaphragm
How many lobes does the left lung have
2 lobes
how many lobes does the right lung have
3 lobes
Cilia
push microbes/ debris out towards mouth
Where does the lower respiratory system start?
Trachaea
Where does gas exchange occur in the lungs
alveoli
pleural membrane
surrounds lungs and REDUCES FRICTION
What are the 2 mucles of the respiratory system?
diaphragm and intercostal muscles
what are the functions of the respiratory system?
oxygenate body, filter air (via nasal passages), sense of smell, speech, maintain acid-base homeostasis
what is the pneumonic to remember functions of respiratory system
Oh Stop Selling My Father
acidosis
low pH
alkolosis
high pH
What happens during inspiration
thoracic cavity expands, intercostal muscles contract, diaphragm concracts
What happens during expiration
thoracic cavity reduces, intercostal mucles relax. diaphragm relaxes
What are the different types of cardiac vessels
Elastic Arteries, Muscular Arteries, Arterioles, Venules, Veins
What is the pneumonic to remember the cardiac vessels
Even My Aunt Vapes Vigorously
Whater types of arteries are the largest?
Elastic Arteries
where can elastic arteries be found?
Aorta
What is the function of Elastic Arteries
STRETCH when blood is forced out of heart, RELAX under low pressure
what is the lining like for Muscular Arteries
INCREASED smooth muscle, DECREASED elastic fiber
where can muscular arteries be found
they branch off of elastic arteries
what is the function of Muscular Arteries
regulate blood flow by VASOCONSTRICTION// VASODILATION
What is the lining like for Arterioles
THIN, lots of smooth muscle
where can arterioles be found
leading to CAPILLARY BEDS
what is the function of Arterioles
CONTROL blood flow to CAPILLARIES by VASOCONSTRICTION// VASODILATION
what is the lining of venules like
few muscle cells
where can venules be found
exiting CAPILLARY BEDS
what is the function of venules
empty blood into larger veins
describe the Tunica Media/ Intima of Veins
VERY THIN
Why is the Lumen of veins so wide
to prevent backflow of blood
what is the function of veins
carry blood back to the heart
how much on average does a human of blood
5 quarts
what are the 4 types of blood
red, white platelets, plasma
what is the pneumonic to remember what plasma is made of
Please Dont I Have A Gun: Protein, Dissolved gases, Ions, Hormones, Amino Acids, Glucose
What components does plasma have
Protein, Dissolved gases, Ions, Hormones, Amino Acids, Glucose
Where is red blood cells formed
in bone marrow
how long do red blood cells live for
4 months
What is the function of white blood cells
defend against infection
What are the different types of white blood cells
Eosionophils, Lymphocytes, Basophils, Neutrophils, Monocytes
What is the pneumonic to remember the types of white blood cells
Eat, Love, Burb, New Motto
What is the function of platelets
to clott bleeding
What does SELF EXCITING mean
no external stimuli needed to trigger a specific function
What happens during the first diastolic phase in the cardiac cycle
blood travels through sup/inf. vena cava, blood PASSIVELY goes through tricuspid valve, SA node triggers electrical pulse carried by purkinje fibers, AV node contracts right ventricle
what happens during systole phase 1 in cardiac cycle
tricuspid closes, pulmonary valve opens, blood brought to pulmonary arteries
what happens during diastole phase 2 in cardiac cycle
blood returns to heart by pulmonary veins, SA node triggers mitral valve to open, left ventricle fills with blood
what happens during systole phase 2 in cardiac cycle
Mitral valve closes, left ventricle contracts, blood pumped to the rest of the body