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77 Cards in this Set

  • Front
  • Back
functions of circulatory system
1.transportation
-respiratory
-nutritive
-excretory
-regulatory
2.protection
-leukocytes
-thrombocytes
cardiovascular system
heart
-four chambers
-double pump
blood vessels
-arteries
-veins
-capillaries
lymphatic system - components
lymphatic vessels
-collect interstitial fluid, return to venous blood
lymph nodes
-cleanse lymph, swell
composition of blood
formed elements
blood plasma
buffy coat
formed elements of blood
erythrocytes
leukocytes
platelets

cellular portion, 45% of volume is the hematocrit
erythrocytes
RBCs
transport oxygen
destroyed in liver & spleen after 120 days
leukocytes
granular, agranular

white blood cells
phagocytic
provide immunity
platelets
thrombocytes
lifespan 5-9 dyas
destroyed in liver & spleen
role in blood clotting - make up major portion of clot & release serotonin to reduce bloodflow
blood plasma
albumins
globulins
fibrogen

55% of blood, fluid portion
hemopoesis
occurs in myeloid tissue - red bone marrow
occurs in lymphoid tissue - lymphnodes
erythropoesis
red bone marrow
formation of rbc
leukopoesis
formation of wbc
granular in red bone marrow
agranular in lymphoid tissue
cyanosis
blue
anemia
low RBC
edema
swelling
erythema
redness in the face
leukocytosis
increase of WBC
leukemia
immature leukocytes
sickle cell anemia
misformed rbc
mononucelosis
atypical lymphocytes
apex
coneshaped end of heart, resting on diaphragm
base
broad superior end where great vessels attach
pericardium
heart wall
parietal pericardium
outer wall of pericardial cavity
against wall of thoracic cavity
visceral pericardium
outer layer of heart, inner layer of pericardial cavity
against organs
four chambers of the heart
R & L
atria - upper
ventricles - lower
interatrial septum
separates atria
interventricular septum
separates ventricles
coronary sulcus
surface depression btwn atria and ventricles
interventricular sulci
anterior & posterior
marks division btwn the ventricles
respiration
external respiration
-ventilation
-gas exchange at lungs
internal respiration
-gas exchange between blood and tissues of the body
-oxygen utilization
ventilation
the act of breathing
-inspiration
-expiration
gas exchange
-between air and blood at the lungs
-between blood and tissues of the body
oxygen utilization
energy production by cell of the body
upper respiratory system - organs
nose, pharynx
lower respiratory system - organs
larynx
trachea
bronchial tree
pulmonary alveoli
lungs
pharynx
connects nasal and oral cavities
respiratory and digestive functions
walls of skeletal muscle
lumen lined with mucous membrane
several paired lymphoid organs: tonsils

three regions
-nasopharynx
-oropharynx
-largyngopharynx
laryngopharynx
inferior or lower portion of the pharynx in contact with the larynx
nasopharynx
superior portion of pharynx
close to the nose
oropharynx
middle portion of pharynx
palatine tonsil
noid of lymphoid tissue
auditory tube
middle ear to nasopharynx
cricoid cartilage
inferior part of larynx
epiglottis
covers glottis when swallowing
glottis
opening into larynx
thyroid cartilage
supports/protects vocal cords
laryngeal prominance
adam's apple
vestibular folds
provide support
vocal folds
produce sound
trachea
airway from larynx to bronchi
tracheotomy
surgically opening the trachea
-great risk of cutting the recurrent laryngeal nerve or common carotid artery
tracheostomy
inserting a tube into the trachea for breathing
-great risk of cutting the recurrent laryngeal nerve or common carotid artery
carina
reinforces tracheal bifurcation
bronchi
branches of trachea
-primary
-secondary
-segmental
bronchioles
further subdivisions of bronchi
-terminal
-respiratory
pulmonary alveolus
where external respiration (gas exchange) occurs
main functioning unit of the lungs
lobes of the lungs
right - three
left - two, to accomodate the heart
parietal pleura
serous membrane on inner wall of thorax & diaphragm
visceral pleura
serous membrane on surface of the lung
pleural cavity
contains lubricating fluid for decreased resistance
each lung has its own
congenital heart disease
due to abnormalities in embryonic development
tetralogy of fallot
1. ventricular septal defect
2. overriding aorta
3. pulmonary stenosis
4. R ventricular hypertrophy

open heart surgery necessary
cyanosis
septal defect
most common heart defect
bacterial endocarditis
disease of lining ofthe heart
pericarditis
inflammation of pericardium
aneurysm
expansion of linging of the heart, aorta, or artery
EKG
electrocardiogram
measures heartrate/conduction

p q r s t
p wave
sa node activation
p-r interval
time required for sa depolarization to reach ventricles
qrs complex
depolarization of ventricles
s-t segment
time btwn qrs and repolarization
t wave
ventricular repolarization
myocarditis
inflammation of heart muscle, cardiac enlargement, congestive heart failure
ischemia
inadequate supply of oxygen due to inadequate blood flow
myocardial infarction
MI
sudden and irreversible necrosis (cellular death) due to ischemia
tachycardia
heartbeat faster than 100 beats per min
bradycardia
heartbeat slower than 60 beats per min