HA: THORAC AND LUNGS Flashcards
The portion of the body extending
from base of neck to the diaphragm.
Thorax
3 parts cpntained in thorax
Contains the lungs, portion of the
trachea & bronchi; constitutes the
lower respiratory system
Shape- bony, conical shape, narrower at top
borders
Thoracic cage
What does the thoracic cage contain of[
-sternum
-12 pairs of ribs
-12 thoracic vertebrae
-muscles
-cartilage
What are the 3 parts of sternum?
-manubrium
-body
-xiphoid process
1st seven ribs are
attached to the sternum
(costal cartilages)
Ribs 8,9,&10
attach to the costal
cartilage above
Ribs 11 & 12 is also called as
floating ribs
the floor, separates the
thoracic cavity from the abdomen
Diaphragm
What are the 4 anterior thoracic landmarks?
-suprasternal notch
-sternum
-angle of louis
-costal angle
U shaped
depression
Suprasternal Notch
“breastbone”
sternum
manubriosternal
angle continuous with the 2nd Rib
Angle of Louise
usually 90 or <.
(increases when rib cage is chronically overinflated
Costal Angle
What are the 4 posterior thoracic landmarks?
-vertebra prominens
-scapula
-spinous process
-12th rib
Flex head, feel
most prominent bony projection at base
of neck = C7 next lower one is T1
Vertebra Prominens
spinal column
Spinous Processes
symmetrical , lower tip
at the 7 -8 the Rib
scapula
midway b/t spine & side
12th rib
Reference line in Anterior Chest
oMidsternal line
oMidclavicular line (right
and left)
Reference line for posterior chest
oVertebral line – midspinal
oScapular line (right and left)
Reference lines in lateral chest
–Anterior Axillary line
–Posterior Axillary line
–Mid–axillary line