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lungs and diaphragm
lungs and diaphragm
63
Anatomy
Graduate
09/13/2009

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Cards

Term
[image]
Definition

green- visceral pleura

red- parietal pleura

Term
are the visceral and prietal pleurea continuous?
Definition
yes
Term
does the visceral pleura have sensory innervation?
Definition
nope
Term
does the parietal pleura pave sensory inervation?
Definition

yes to pain/ temp/ touch.

next to intercostal nerves and phrenic

Term
what is pleuritis or pleuisy?
Definition
inflamation of the pleaura, causes adhesion between the visceral and parietal pleura and pain associated with acitivity
Term
what is the pleural cavity?
Definition
the potential space between the visceral and pareital pleura
Term
is the right pleual  cavity connected to the left?
Definition
no they are independent
Term
what is normally in the pleural cavity?
Definition
a thin layer of serous fluid which acts as a lubricant and facilitates movement during respiration
Term
what is hydrothrox?
Definition
accumulation of fluid in the pleural cavity
Term
what is pneumothorax?
Definition
accumulation of air in pleural cavity
Term
what is hemothroax?
Definition
accumulation of blood in pleural cavity
Term
[image]
Definition
costodiaphramatic recess- inferolateral recess within the pleural cavity
Term
does the costodiaphragmatic recess increase or decrease in size with expiration?
Definition
recess enlarges- diapram moves down and there is more space/recess below the lungs
Term
what is the procedure to remove excess fluid from the plueral cavity?
Definition
thoracocentesis
Term
where would you stick the needle for thoracocentesis?
Definition
in the 7th to 9th intercostal space
Term
what happens if the thoracic wall is breached? (knife/ bullet/ wound)
Definition
the lungs will shrink to 1/3 the size due to  a loss of elasticity, and example of pneumothorax
Term
what is the root of the lung
Definition
collection of structures entering and exiting the lung
Term
where is the apex of the lung?
Definition
superior portion, externing into the neck
Term
where is the base of the lung?
Definition
concave inferior portion
Term
how many lobes int he right lung?
Definition
3
Term
how many lobes in the left lung?
Definition
2
Term
names of the lobes in the right lung
Definition
superior lobe, middle lobe and inferior lobe
Term
names of lobes in left lung
Definition
superior lobe and inferior lobe
Term
[image]
Definition

cleste- horizontal fissure

pink- oblique fissures

green- cardiac notch

Term
where does the trachea bifurcate?
Definition
at sternal angle T4/T5
Term
where is trachre relative to the larynx?
Definition
inferior
Term
where can you palpate the trachea?
Definition
at the jugular notch
Term
What is the caina?
Definition
ridge of cartelidge that bifurcates the traches
Term
are the right and left main bronchi inside or outside the lungs?
Definition
outside/ extra pulmonary
Term
is an aspirated forigne object more likely to enter the left or right bronchi?
Definition
right because it is wider sharter and more veritcal than the left
Term
describe the branching pattern of the bronchi including number of branches and name of branches
Definition

main bronchi-2

lobar bronchi- 3 in right 2 in left- named after lobe it supplies

segmental bronchi- to each segment

Term
are the lobar bronci inside or outside the lung?
Definition
inside- intrapulomnary
Term
what is a bronchopulmonary segment
Definition

area of lung supplied by a segmental bronchi and a segmental branch of the pulmonary artery.

Functionaly independent

Seperated from other segemnts by a septa, can be removed

Term
are pulomnary arteries intersegmetnal?
Definition
no- one pulmonary artery branch per segment of lung
Term
are pulmonary veins intersegmental?
Definition
yes
Term
how many segments per lung?
Definition
10
Term
describe the blood flow from the right ventricle to the lungs
Definition

right ventricle

pulmonary trunk

right/left pulmonary artery

lobar arter

segmental artery

Term
describe the rout of blood from lungs to left artrium
Definition

lungs

2 pulmonary veins in each lung

left artium

(intersegmental)

Term
what type of artery brings blood to the lung tissues?
Definition
bronchial arteries
Term
what is the difference between broncial and pulmonary arteries
Definition

broncial bring oxygen rich blood to the lung tissue

pulmonary arteries bring oxygen poor blood to lung segments to be oxygenated

Term
where do the broncial arteries branch from?
Definition
thoracic aorta
Term
where do the bronchial veins go/.
Definition
drain to azygos system or intercostal veins
Term
what innervates all organs?
Definition
autonomic nervous system
Term
what type of autonomic nervs result in bronchoconstriciton?
Definition
parasympathetic- vagus nerve
Term
what kind of autonomic nerves result in bronchodialation?
Definition
sympathetic- splanchnic nerves
Term
map the rout of the para sympathetic innervation of the lung
Definition

preganglionic cell body in brain

preganglionic fibers are vagus nerve

posganglionic cell body in wall of lung

post ganglionic fiber in wall of lung as well

Term
map route of sympathetic innervation of lung
Definition

preganglionic cell body in lateral horn of thorcaic spinal cord

preganglionic fibers ventral root-> sinal nerve-> ventral ramus->white ramus comunicans-> sympathtic trunk

Postganglionic cell bodies in thorcic para vertebral ganglia

post ganglionic fibers travel frompara vertebral ganglia to lungs

Term
what seperates the thoracic and abdominal cavities
Definition
the diaphram
Term
what kind of muscle is in the diaphram?
Definition
skeletal
Term
describe the shape of the diaphragm
Definition

there is a C shaped central tendon,

2 dome, witht he right one higher

heart is connected to the central tendon

attached to : xiphoid process ribs 11-12, lumbar vertebra

Term
what are crura?
Definition
attachemtns of diaphragm to the lumbar vetebra
Term
[image]
Definition

celeste- caval IVC opening T8

yellow-Esophageal hiatus also inc vagus nerve- T10

purple- aortic hiatus, also inc thoarcic duct and azygos vein- T12

Term
what is the sensory innervation of the diaphragm?
Definition
mainly phrenic nerve, but some intercostal nerves
Term
what is responsibel for the motor innervation of the diaphragm?
Definition
phrenic nerves from ventral rami C345
Term
do the left and right phrenic nerves work independently on the diaphragm?
Definition
yep
Term
what is the primary muscle of inspiration?
Definition
diaphragm
Term
describe how the diaphragm works
Definition
when diaphargm contracts domes descend and creates vertical dimension of throcic cavity, diaphragm ralexes durring expiration
Term
what happens if you have a lesion on a phrenic nerve?
Definition
it will paralyze the coresopnding dome of the diaphragm, that dome will not descend durring inspiration, and you can see this in a X ray
Term
describe the realtionship between thoracic pressure and inspiration/expiration
Definition

 

  • if thoracic pressure is less than atmospheric pressure than you will draw air in
  • if thoracic pressure is greater than atmospheric pressure you will exhale

 

Term
describe 3 ways to increase thoracic volume
Definition

 

  1. lower diaphragm
  2. elevating ribs- expand cavity lateraly- bucket handle mechanism
  3. elevating ribs- expaning cavity anteriorposteiorly- pump handle mechanism

 

Term
what muscle can be recruited for forceful expiration
Definition
the pectoral muscles, if the arms are held stationary
Term
what muscles can be recruited for forecful expiration?
Definition
abdominal muscles, compress abdominal viscera upward, decresing thoracic volume
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