Thorax&Abdomen Flashcards
What does trunk consist of?
thorax and abdomen
Where is the thorax?
from base of neck to the diaphragm muscle
What is thorax function?
protect heart and lung
What are muscles that thorax attached to?
upper limb
back
respiration
Where is the abdomen?
from diaphragm muscle to pelvic inlet
What does abdomen contain?
major viscera of digestive system
What does hold viscera in place?
masculature
What part of abdomen doesn’t have bony structure?
lumbar vertebrae
What is the name for superior thorax?
superior thoracic aperture or thoracic inlet
What is the shape of superior thorax?
kidney-shaped opening
What is superior thorax formed of?
T1 vertebrae, 1st pair of ribs and superior margin manubrium
What does superior border of thorax include?
apex of lungs
common carotid artery
internal jugular vein
subclavian artery & vein
Esophagu & trachea
brachial plexus
what is the cause of thoracic inlet syndrome?
compressiion of thoracic inlet
What are the symptoms of thoracic inlet syndrome?
Reduced blood flow (cool bluish skin)
muscle weakness
C8+T1 damaged -> loose the sense of your hand
What does brachial plexus supply?
C8 + T1
Where is the inferior thorax?
wide opening formed by T12 vertebrae, 12th pair ribs & costal arch
What are in the anterior border of thorax?
sternumb, ribs and costal cartilages
What are part of the posterior thorax?
thoracic vertebrae and ribs
How many thoracic vertebraes are there?
12
What are parts of sternum?
manubrium
body
xiphoid process
jugular notch
sternal angle
Where is the jugular notch?
on top of the sternum of manubrium
What is the sternal angle?
between body and manubrium
what true ribs are there?
1-7 ribs attached to sternum
What are there false ribs?
8-10 superior without attaching to sternum
What are the floating ribs?
10-11 as it doesn’t have anterior attachment
Where does common carotid artery going through?
cervical vertebrae
Where does the subclavian artery and veins go to?
the arm
How many joints does thorax have?
2 posterior joints and 4 anterior joints
What are those 2 posterior joints?
costovertebral and costotransverse
What kind is costovertebral joint?
plane joint and connecting between head of ribs and two vertebrae
What ligaments does costovertebral joints have?
interosseous ligament
radiate (stellate) lig
What does interosseous ligament do?
connecting crest of head (ribs) to vertebrae disk
What does radiate (stellate) lig do?
reinforce the ligament of costalvertebral joints
What do the ribs of thorax consist of?
head, neck and body
What does travel through costal groove?
veins and nerves
What does the crest of head of ribs do?
articulate with the vertebral body at the costovertebral joint
What part of the rib that articulate with the transverse process of vertebrae?
Tubercle of the neck
What does costotransverse joints consist of?
superior CT lig
CT proper or posterior
lateral CT lig
What does superior CT ligament connect?
superior surface crest of neck to inferior surfeace of transverse process
What does CT proper or posterior connect?
posterior surface of neck to the anterior surface of transverse process
Where does the tubercle of rib articulate?
the transverse process at costotransverse joint
Where is the most vulnerable broken place of the rib?
costal angle
What does lateral CT lig connect?
tip of transverse process and tubucle of rib
What is the action does rib 1-7 do?
roll (pump handle movement)
What action does rib 8-10 do?
silde (buckle handle movement)
What are 4 anterior thorax joints?
2 rib-sternum
2 intrasternal
What kind of joints is constalchondral? chondrosternal?
synchondrosis.
synchondrosis for the 1st rib and plane joint for the remaining
What are parts of rib-sternum joints?
constochondral and chondrosternal
What is the costochondral joint?
the rib start of costal cartilage
What is the chondrosternal joint?
the sternum costal cartilage
What are parts of intrasternal joints?
manubriosternal
xiphisternal
What kind of jointis is manubriosternal? Where is it?
symphysis. In manubrium
What kind of joint
Muscle that attach to the ribs has the potential to affect respiration
Pectoral muscles
What are the thoracic muscles concerned exclusively w/ respiration?
diaphragm
intercostal
serratus posterior
levator costarum
What muscle cover the thoracic wall?
pectoral
serratus anterior
trapezius
lats
erector spinae
What is the layer muscles of intercostal?
external
internal
innermost layer
Where is the external intercostal muscle bulk in?
in back (posterior)
Where is the internal ntercostal muscle bulk in?
anterior
What muscles are made of the innermost?
Innermost (lateral)
transversus thoracics (anterior)
subcostals (posterior)
What is the levator costarum muscle?
transverse process to 1 or 2 ribs below between tubercle and angle
What muscle is inferomedial in intercostal?
external intercostal muscle
What intercostal muscles that are superomedial?
internal intercostal muscles and innermost intercostal
Where does nerve and blood vessels travel in the intercostal muscle layers?
between internal and innermost intercostal muscle
What does the endothoracic fascia do?
line the thoracic cage
What is the order of thoracic fascia layer?
superficial
deep layer
thoracolumbar
endothoracic
suprapleural
What is in between parietal and visceral pleura?
pleural cavity
What is the function of pleural cavity?
reduce fiction between visceral and parietal pleura
What is the suprapleural membrane?
endothoracic fascia covering apices of lung