S2 review Flashcards
Osteoblasts
Cells that form new bones and grow and heal existing bones. (lay down callus during immobilization stage)
Osteoclasts
Cells that degrade bone to initiate normal bone remodeling and mediate bone loss in pathologic conditions by increasing their re-absorbitive activity. (reshapes bone)
Green Stick Fracture
An incomplete fracture, it occurs on the convex surface of the bend on the bone.
Fissured fracture
An incomplete longitudinal break
Comminuted fracture
A complete fracture and fragments of the bones.
Transverse fracture
A complete fracture, break occurs at the right angle to the axis of the bone.
Oblique fracture
Occurs at an angle other than a right angle to the axis of the bone.
Spiral fracture
Caused by twisting a bone excessively.
What are stress fractures and how to treat?
Tiny cracks in the bones caused by repetitive force/ overuse (commonly occur in weight bearing bones). Suspend activity, and gradually return. Cast not typically required.
What are dislocations and how to treat?
When a joint is forced outside of its normal and completely natural alignment. Must be manually or surgically put back into place or reduced.
What are subluxations, and how should they be treated?
Partial dislocation, the bone can be forced out of alignment but goes back into place. Commonly occurs in the shoulder joint or patella (knee cap). Reset the joint, administer pain relief, rehabilitation therapy, and, in severe cases, do surgery.
Ligaments
tissue that attaches bone to bone
tendons
tissue that connects muscle to bone
What structures are affected in a sprain
ligaments, joint capsule, or both.
What structures are affected in a strain
muscles or tendons
Different grades of sprains and strains
Grade 1: Mild, tissue is stretched
Grade 2: Moderate, involves stretching or some tearing of tissue
Grade 3: Severe, complete tearing of tissue
Muscle guarding
Voluntary muscle contractions that occur in response to pain following musculoskeletal injury. (often confused with a spasm)
Muscle cramps
painful involuntary contractions. Occurs in muscle groups that are overloaded and fatigued during high demand activities.
Muscle soreness
overexertion in strenuous exercise resulting in muscular pain. Occurs when individuals perform a physical activity to which they are unaccustomed.
Acute onset muscle soreness
(AOMS): accompanies fatigue, is transient and occurs during and immediately after exercise.
Delayed onset muscle soreness
(DOMS): is a syndrome of delayed muscle pain leading to increased muscle tension, swelling, stiffness, and resistance to stretching.
What are acute injuries?
An injury that occurs suddenly, such as a sprained ankle caused by an awkward landing.
What are chronic injuries
Chronic injuries are caused by repeated overuse of muscle groups or joints, such as tennis elbow.
Inflammatory phase (1st healing process of injury)
Happens immediately after injury, and is the most critical phase. Phagocytic cells clean up the mess created by the injury. Injured cells release chemicals that facilitate the healing process. Characterized by redness, swelling, tenderness, increased temperature, and loss of function. May last 2-4 days.
Fibrolastic repair phase (2nd healing process of injury)
Proliferative and regenerative activity leading to scar formation and repair of the injured tissue occurs. May last as long as 4-6 weeks. Athletes will still experience some tenderness and pain with certain movements.
Maturation remodeling phase (3rd healing process of injury)
Long term process, involves realignment of scar tissue according to tensile forces acting on the tissue. Collagen fibers that make up the scar realign to the position of maximum efficiency. (parallel to lines of tension) After 3 weeks a firm, strong, contracted, nonvascular scar exists. Maturation may take several years to totally complete.
Bones of skull
Parietal (2), Temporal (2), Frontal (1), Occipital (1), Ethmoid (1), Sphenoid (1)
Bones of face
Maxilla (2), Zygomatic (2), Mandible (1), Nasal (2), Platine (2), Inferior nasal concha (2), Lacrimal (2), Vomer (1)
Frontal lobe
It is responsible for cognitive functions such as attention, thinking, memory, reasoning and learning. It also inhibits autonomic and emotional responses.
Parietal lobe
It is mainly concerned with senses/sensations and coordination
Temporal Lobe
It processes the auditory information
Occipital Lobe
It interprets visual impulses, memorizes visual stimuli and helps in color visual orientation.
Olfactory (Cranial nerve)
Sense of smell
Optic (Cranial Nerve)
Ability to see
Oculomotor (Cranial Nerve)
Ability to blink and move your eyes
Trochlear (Cranial Nerve)
Ability to move eyes up, down, left, right, ect.
Trigeminal (Cranial nerve)
Sensations in your face and cheeks, taste and jaw movements
Abducens (Cranial nerve)
Ability to move your eyes
Facial (Cranial nerve)
Facial expressions and sense of taste
Vestibular (Cranial nerve)
Sense of hearing and balance
Glossopharyngeal (Cranial nerve)
Ability to taste and swallow
Vagus (Cranial Nerve)
Digestion and Heart Rate
Shoulder and neck muscle movement.
Shoulder and neck muscle movement.
Hypoglossal (Cranial Nerve) nerve
Ability to move your tongue
What is the acronym to remember the 12 Cranial nerves
Oh, Oh,Oh, To, Touch, And, Feel, Very, Green, Veggies, And, Honey.
Ecchymosis
A discoloration of the skin resulting from bleeding underneath, typically caused by bruising. (Basically bruising)
Etiology
Cause, origin specifically : the cause of a disease or abnormal condition
MOI
Method Of Injury
SIgns
Any objective evidence of a disease that can be observed by others (for example a skin rash or lump)
S/S
Signs and Symptoms
Symptoms
Subjective, that is, apparent only to the patient (for example back pain or fatigue)
TX
Treatment
Black Eye
MOI: Direct blow
S/S: Pain, ecchymosis, swelling but no visual impairment TX: RICE
Orbital Fracture
MOI:Direct blow
S/S: Pain, eyes don’t track together, sunken eye, bulging eye, diplopia (double vision)
TX: referral, eyepatch, surgery
Foreign Bodies in Eye
MOI: Something just gets in there
S/S: Itchy/pain,tearing, redness, see something on eye. TX: Eyewash or saline wash, manipulating eyelids, referral for object removal/antibiotics.
Corneal Abrasions
MOI: Athlete attempts to remove foreign object from eye by rubbing it, cornea becomes abraded.
S/S: severe pain, watering the eye, photophobia (light sensitivity), spasm of orbicularis muscle of eyelid.
TX: patch eye and refer athlete to a physician, antibiotic ointment prescribed by physician is applied, and a semi pressure patch is placed over the closed eyelid.
Subconjunctival hemorrhage:
MOI: blow to eye (white spaces), sneeze/cough
S/S: broken blood vessels in whites of eyes, painless
TX: usually will clear in 7-10 days, if problems then refer.
Conjunctivitis (Pink eye)
MOI: viral infection of the membrane lining the eyelid. Spread by allergens, dirty hands, or dirty contact lenses. S/S itch/redness, crusts, blurred vision, photophobia
TX: refer for antibiotics/medication, warm or cold compress for pain.
Detached Retina
MOI: blow to the head/eye, sneeze
S/S:sparks, floating or flashes of light, foggy vision, may feel that curtain falls over vision
TX: immediate referral.
Hyphema
MOI:Direct blow
S/S:blood within cornea/pupil, pain, red haze or loss of vision
TX: have victim lie down/ rest with head elevated, activate EAP.
Auricular hematoma (cauliflower ear)
MOI: friction, tugging on warm direct blow
S/S: fluid buildup under skin, deformity, tenderness
TX: RICE, referral for drainage.
Otitis externa (swimmer’s ear)
MOI: water trapped in ear
S/S: itch/pain, swelling in ear canal, hearing loss, dizziness
TX: OTC ear drops, referral for antibiotics, wear earplugs or thoroughly dry ears to prevent.
Rupture of the tympanic membrane
MOI: Fall or slap to the unprotected ear, sudden underwater pressure variation, abrupt change in pressure or on airplane.
S/S: Tinitus, hearing loss, pain, ear discharge
TX: usually heals on its own, do not fly until condition is resolved.
Otitis media (middle ear infection)
MOI: linked local and systemic infecton and inflammation.
S/S: intense pain in the ear, fluid drainage from the ear canal, transient hearing loss, and dizziness. Systemic infection may also cause a fever, headaches, irritability, loss of appetite, and nausea.
TX: FLuid withdrawal may be necessary to determine the appropriate antibiotics, nostalgics for pain, generally resolves in 24 hours, pain may last 72 hours.
Impacted cerumen
MOI: excessive earwax accumulation in the ear
S/S: degree of hearing loss that is usually muffled, generally little to no pain because no infection is involved.
TX: irrigate the canal with warm water, do not try to remove it with cotton tip applicator as it may increase the degree of impaction, and may need to be physically removed using a curette.
Epistaxis (nosebleed)
MOI: genetics, dry air, direct blown nose picking.
S/S: bleeding from nose
TX: lean forward pinching nose, nose plugs, ice, refrain from sneezing, snorting, or blowing nose after bleeding nose stops.
Deviated Septum
MOI: direct blow, genetics
S/S: cartilage between nostrils has shifted, decreased breathing through one nostril, increased chance for epistaxis, increased snoring and sleep apnea
TX: referral for care.
Nasal Fracture
MOI: DIrect blow, genetics
S/S: deformity, severe epistaxis, crepitus, deviated septum, raccoon eyes(two black eyes)
TX: refer for x-ray, wear mask to protect.