Chapter 19- Thorax and Lungs Flashcards
A bony structure with a conical shape, which is narrower at top.
Thoracic Cage
Defined by sternum, 12 pairs of ribs, and 12 thoracic vertebrate .
Thoracic cage
What ribs are floating ribs with free palpable tips?
ribs 11 and 12
Points at which ribs join their cartilages; they are not palpable.
Costochondral junctions
U shaped depression just above sternum between clavicles
Suprasternal notch
“breastbone”. manubrium, body, and xiphoid process
Sternum
“Angle of Louis” at articulation of manubrium and sternum, and continuous with second rib.
Manubriosternal angle
The right and left costal margins form an angle where they meet at xiphoid process.
Costal Angle
___ also marks the site of tracheal bifurcation into right and left main bronchi. It also corresponds with upper border of atria of the heart, and it lies above fourth thoracic vertebra on back.
“Angle of Louis” or Manubriosternal angle.
Flex your head and feel for most prominent bony spur protruding at base of neck.
Vertebra prominens
Count down these knobs on vertebrae, which stack together to form spinal column.
spinous process
Scapulae are located symmetrically in each hemothorax.
Inferior border of scapula
Palpate midway between spine and a persons side to identify it’s free tip.
12th rib
Use ___ to pinpoint finding vertically on chest.
Reference lines
anterior chest reference lines:
note midsternal and midclavicular line
posterior chest reference lines:
note vertebral (midspinal) line and scapular line
Lift up the persons arm 90 degrees and divide lateral chest by what 3 lines?
Anterior axillary line
Posterior axillary line
Midaxillary line
middle section of thoracic cavity containing esophagus, trachea, heart, and great vessels
Mediastinum
What cavities contains the lungs?
Right and left pleural cavities
Which lobe of the lung is shorter and why?
The right lung is shorter because of the underlying liver
Which lung is narrower and why?
The left lung is narrower because the heart bulges to the left.
How many lobes in each side of the lungs?
Right side has 3 lobes: upper, middle, and lower.
Left side has 2 lobes: upper and lower
__ form an envelope between lungs and chest wall.
Thin and slippery serous membranes.
Pleurae
__ normally has a vacuum, or negative pressure which holds lungs tightly against chest wall.
Pleural cavity
Pleural cavity is potential space filled with __.
Only a few milliliters of lubricating fluid.
Trachea lies ____ and is ___ inches long.
anterior to the esophagus and is 10-11 cm long.
trachea and bronchi ___ between the environment and lung parenchyma.
Transport gases
Trachea and Bronchi are lined with ___.
goblet cells
Functional respiratory unit consists of bronchioles, alveolar ducts, alveolar sacs and alveoli.
Acinus
4 major functions of the respiratory system:
- Supplying oxygen to the body for energy production.
- Removing carbon dioxide as a waste product of energy reactions.
- Maintaining homeostasis (acid-base balance) of arterial blood.
- maintains heat exchange (less important in humans)
Second most commonly diagnosed cancer
Lung cancer
Affects more than 1/3 of the worlds population, social and migratory disease. Need to identify and actively treat.
Tuberculosis
Most chronic disease in childhood, highest burden seen in those living at or below the federal poverty level, and ethnic and environments factors play significant role.
Asthma
Use __ of the stethoscope and listen to at least one full respiration in each location.
flat diaphragm
3 types of breath sounds heard normally in adults and older child:
Bronchial: sometimes called tracheal or tubular
Bronchovesicular
Vesicular
Added sounds that are not normally heard in lungs
Adventitious sounds
A type of adventitious sound that is not pathological. Short, popping, crackling sounds that sound like fine crackles but do not last beyond a few breaths.
Atelectatic crackles
Inspection of Anterior Chest
Note shape and configuration of chest wall Note patients facial expression Assess level of consciousness Note skin color and condition Assess quality of respirations
Palpation of Anterior Chest. Palpate for ___ chest expansion.
symmetric