objective 13 Flashcards
bony structure with conical shape, defined by the sternum, 12 pairs of ribs and 12 thoracic vertebrae
thoracic cage
what are the anterior thoracic landmarks
sternum
sternal angle
costal angle
breastbone- 3 pts
manubrium, body, xiphoid process
sternum
Useful landmark - helps localize a respiratory finding horizontally
sternal angle
usually 90 degrees or less
coastal angle
what are the posterior thoracic landmarks?
vertebra prominens
spinous processes
inferior boarder of the scapula
twelfth rib
Most prominent bony protrusion – spinous process of C7
* If 2 bumps seem equally prominent – upper is C7, lower is T1
vertebra prominens
Spinous process align with ribs down to T4
* After T4 spinous processes angle downward from their vertebral bodies
spinous processes
Scapulae located symmetrically in each hemithorax
* Lower tip usually at level over 7th or 8th rib
inferior boarder of the scapula
Free tip - palpated midway between spine and the client’s side
twelfth rib
midsternal line
midclavicular line
anterior chest
vertebral line
scapular lines
posterior chest
anterior axillary line
posterior axillary line
midaxillary line
lateral chest
Middle section of the thoracic cavity
* Contains: esophagus, trachea, heart, great vessels
mediastinum
Right and left, on either side of the mediastinum
* Contains: lungs
pleural cavities
Shorter (liver)
* 3 lobes
* Stack in diagonal sloping segments that are separated by
fissures that run obliquely through the chest
right lung
Narrower (heart bulges to the left)
* 2 lobes
* Stack in diagonal sloping segments that are separated by a
fissure that runs obliquely through the chest
left lung
highest point of lung
tissue, 3-4 cm above inner
third of the clavicles
apex
lower border, rests on
the diaphragm at about the
6th rib in the midclavicular
line
base
Location of C7 – marks
the apex
*Location of T10 –
usually corresponds to
the base
posterior chest
*Lung tissue extends from apex of
the axilla to 7th or 8th rib
*RUL – apex of axilla down to the
horizontal fissure (5th rib)
*RML – level of horizontal fissure
down and forward to level of the
6th rib
*RLL – level of 5th rib to the 8th
rib midaxillary line
*LUL – level of apex of axilla down
to 5th rib midaxillary line
*LLL – 5th rib to 8th rib
lateral chest