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intercostal muscles contract, elevating the rib cage, diaphragm contracts, pressure in chest decreases


sudden, severe compression of the chest; results in hemorrhage into the sclera of the eye

traumatic asphyxia

blood collects in pericardium, fluid leaks in and pushes down on heart decrease in difference between systolic and diastolic blood pressure (pulse pressure)- diastolic will raise, systolic will dive, jugular vein distention

pericardial tamponade

supply the diaphragm

phrenic nerves


most common sign of significant abdominal bleeding

attach muscle to bone


hold joints together



are held together by tough fibrous structure (capsule)

synovial fluid

joints are bathed and lubricated by

occurs in a growth section of child's bone

epiphyseal fracture

incomplete fracture

greenstick fracture

broken bone caused by disease

pathological fracture

bone is broken into two or more fragments

comminuted fracture

often lacerated or compressed by displaced tibia

popliteal artery

500-1000 mL

fracture of femur can cause loss of blood as much as

red blood cells

bone marrow produces what kind of blood cells

7th vertebra

most prominent and easily palpable spinous process is

intracranial bleeding outside of dura and under skull

epideral hematoma

reacts to stress with flight or fright response

symphatic nervous system

causes body to relax and digest, decrease pulse and respiratory rate

parasymphatic nervous system

moved laterally

distracted spine

10% of persons body weight up to 15lbs.

traction force weight gauge

right lung = 3, left lung = 2

lobes of the lung

exchange of gases in alveoli of lungs


body's ability to move air in and out of chest and lung tissue


loose ability to breath entirely

injuries to C3 and above

lose power to move intercostal muscles, but diaphragm will still contract

injury below C5

31 pairs of spinal nerves, 12 pairs of cranial nerves

two parts of the peripheral nervous system

increased bp, decreased pulse rate, irregular respirations- triad of signs indicate increased cranial pressure; cerebral edema

cushings reflex

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