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Anatomy Thoracic Cavity
KYCOM Block 1
84
Anatomy
Graduate
08/20/2012

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Cards

Term
what is the span of the trachea
Definition
coricoid cartilage (C6) of larynx to the sternal angle
Term
what is the first division of the trachea
Definition
near the sternal angel divides into the principal (main) bronchi
Term
how many cardliages are in the tracha? describe them
Definition
16-20, U shape with a posterior opening
Term
fibromuscular membrane
Definition

posterior wall of the trachea

membranous wall

Term
trachealis muscle
Definition
contracts trachea
Term
describe the borders of the trachea
Definition

anterior: thymus, aortich arch, brachiocephalic trunk (artery), left bracheocephalic vein

posterior: esophagus

right: arch of ayzgos vein, right vagus nerve, right pleura and lung

left: arch of aorta, left common carotid arteries, left subclavian arteries

 

Term
where is the left recurrent laryngeal nerve located
Definition
between the trachea and esophagus on the left side, loops under aorta going to the larynx
Term
compare the two prinicial bronchi
Definition
the right is wider, shorter, more verticle
Term
if a foriegn body is inhaled where will it go
Definition
the right primary bronchi usually
Term
what branches off of the right primary bronchi
Definition
superior, middle, and inferior secondary bronchi corresponding to the lobes
Term
what branches off of the left primary bronchi
Definition
two secondary branches, 1 per lobe
Term
describe the location of the right primary bronchi
Definition
inferior to the azygos vein arch
Term
describe the location of the left primary bronchi
Definition
under the aorta
Term
what covers the lungs
Definition
visceral pleura
Term
how are the lungs attached to the medistanium
Definition
vessels, lymph vessels, nerves, bronchus
Term
apex
Definition
upper part of the lungs above the clavicle and thorasic aperature (2-3 cm above the first rib)
Term
diphragmatic surface
Definition
the lower, concave bast of the lungs
Term
costal surface
Definition
the sides of the lungs by the ribs, convex
Term
medistanial surface
Definition
surface of the lungs in the medistanial region
Term
describe the shape of the right lung it divides the costal and mediastinal surfaces, what border is this
Definition
anterior border, thin and sharp
Term
describe the shape of the left lung on the anterior border
Definition
there is an indentation for the cardiac notch, there is a tounge (lingula) around the heart coming from the superior node
Term
inferior border of the lungs
Definition

thin and sharp where it seperates the base and costal surface

rounded where it seperates the base and mediastinal surface

Term
hilum
Definition
depression on the medaistanial surface where structures enter and leave the pleura of the lungs. so the root of the lung passes through the hilum
Term
how many lobes does the right lung have
Definition
3 lobes
Term
how many lobes does the left lung have
Definition
2 lobes
Term
fissure
Definition
seperate lobes of the lungs
Term
what fissures does the right lung have
Definition

oblique: between upper and lower lobe

horizontal: upper and middle lobe

Term
what fissures does the left lung have
Definition
oblique fissure
Term
lingula
Definition
part of the upper lobe of the left lung, is the pseudo third lobe of the left lung
Term
what surface of the lungs has lots of indentations
Definition
the medialstinal
Term
what indentations are on the right surface of the lungs
Definition
heart, vena cava, esophagus
Term
what indentations are on the left lung
Definition
heart (large), aortic arch, descending aorta
Term
what branch off of the secondary bronchi in each lobe
Definition
segmental or tertiary bronchi, each segment has about 10 branches supplying a section of a lobe (the bronchopulmonary segments)
Term
describe the blood supply to the tertiary bronchi
Definition
the broncho pulmonary segments each have a segmental bronchus and segmental artery. the veins are intersegmental and not exclusive to one branch area
Term
what is the surgical significance of the broncho pulmonary segments
Definition
it is the smallest / deepest a surgon can go into the lungs and repair without removing pieces, it is the fartherst a camera can go down
Term
a patient is laying on their back and aspirates a substance where does it end up?
Definition
in the superior segment of the right lower lobe
Term
what is the significance of the pleura near the root of the lungs
Definition
it is loose allowing space for the lungs to move up and down, there is a piece that hangs below allowing movement (pulmonary ligament)
Term
pulmonary ligament
Definition
extra piece of pleura that hangs down below the root of the lungs allowing for movement
Term
name everything in one lung root
Definition
principal bronchus, pulmonary arteries, 2 pulmonary veins, bronchial vessels, lymph vessels, lymph nodes, autonomic nerves (anterior and posterior pulmonary plexus)
Term
what are the two pleural cavities in the thoracic cavity
Definition
lungs and pleural membranes
Term
mediastinum
Definition
contains thymus, heart, blood vessels entering heart, trachea, esophagus, azygos venous system, thoracic duct, lymph nodes, vagus and phrenic nerves, sympathetic trunks
Term
carina
Definition
ridge that marks the division of the trachea into principal bronchii
Term
describe the general shape of a lung
Definition
conical
Term
where is there no well defined border in the lungs
Definition
between the costal and mediastinal surfaces
Term
bronchopulmonary segments
Definition
group of tertiary bronchi supplying a lobe
Term
how many bronchopulmonary segments does the upper left lung have
Definition
4 (2 upper and 2 lingular)
Term
how many bronchopulmonary segments does the lower left lung have
Definition
4
Term
how many bronchopulmonary segments does the upper right lung have
Definition
3
Term
how many bronchopulmonary segments does the middle right lung have
Definition
2
Term
how many bronchopulmonary segments does the lower right lung have
Definition
5
Term
pulmonary vessels
Definition
take blood from the heart, oxygenate it, and take it back to the heart to be pumped out. the vessels have reverse oxygenation
Term
what is the main purpose of the bronchial vessels
Definition
oxygenate lungs not near aveoli
Term
where do the left bronchial arteries come from, where do they go
Definition
the descending aorta, follow bronchi
Term
where do the right bronchial arteries come from, where do they go
Definition
posterior inercostal space #3 or the left bronchial artery, follow bronchi
Term
bronchial veins
Definition

do not recieve all bronchial artery blood, some comes back through the pulmonary veins

drain into azygos vein on the right and hemizygos on the left

Term
how many left and right bronchial arteries are there
Definition
2 left and 1 right
Term
where are the pulmonary arteries located in each lung
Definition

right: anterior to the principal bronchi

left: superior to the princial bronchi

Term
superficial lymphatic plexus
Definition
under the visceral pleura, drains outer part of lung to the bronchopulmonary lymph nodes in the hilum
Term
deep lymphatic plexus
Definition
travels along bronchi and pulmonary vessels towards hilum bronchopulmonary nodes, some pass pulmonary nodes in lung
Term
describe the passage of lymph from the lungs starting with the common gathering place of lung lymph, the bronchopulmonary nodes
Definition
bronchopulmonary nodes > tracheobronchial nodes > paratracheal nodes (sides of trachea) > bronchomedistanial lymph trunks > thoracic ducts on left and lymphatic duct on right > juglosubclavian junction
Term
what is specal about the lymph in the lower left lung
Definition
some is drained directly by the right bronchomediastinal lymph trunk
Term
what are the nerves innervating the lungs
Definition

anterior and posterior pulmonary plexus

parasympathetic

sympathetic

Term
what do parasympatheric nerves in the lung cause
Definition
broncho constriction, increased secretions
Term
what do sympathetic nerves in the lungs cause
Definition
broncho dilation
Term
anterior and posterior root pulmonary plexuses
Definition

nerves innervating the lungs

sensory and motor autonomic nerve fibers

come from

vegus nerve or come from thorasic sympathetic trunk

has sensory fibers from bronchial mucous membrane and aveoli

Term
what is the relationship of the lung and pleura during development
Definition
the pleura is already there and the lung grows into the cavity filling most of it
Term
what is the pleura made of
Definition

serous membrane

simple squamous epithelium

Term
where does the visceral turn into parietal pleura
Definition
at the lung root
Term
describe a healthy pleural cavity
Definition
little to no space, a little fluid, prevents friction
Term
desribe the pleural cavity of somene who is unhealthy
Definition
it becomes a larger space
Term
portions of the pleura
Definition
diaphragmatic, mediastinal, cervical (extends into root of neck and lung apex
Term
costial diaphragamatic recess
Definition
lowest pleural cavity between lung and diaphragm. allows room for deep inspiration, most in the back region
Term
costal mediastinal recess
Definition
pleura comes across under sternum leaving a crease for deep breath expansion
Term
nerve supply of the costal pleura
Definition
intercostal nerves
Term
nerve supply of the mediastinal pleura
Definition
frenic nerve (innervates diaphgram)
Term
nerve supply of the diaphragamatic pleura
Definition
phrenic nerve in the central region, intercostal nerve in the lateral region
Term
nerve supply of the visceral pleura
Definition
autonomic fibers of pulmonary nervous plexus
Term
which pleura is sensitive to pain
Definition
parietal
Term
where does the lung end on the midclavicular line
Definition
6th rib
Term
where does the lung end on the midaxillary line
Definition
8th rib
Term
where does the lung end on the paravertebral line
Definition
10th rib
Term
where does the pleura end on the midclavicular line
Definition
8th rib
Term
where does the pleura end on the midaxillary line
Definition
10th rib
Term
where does the pleura end on the paravertebral line
Definition
12th rib where diaphragm attaches
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