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SEU KINE 3347 Exam 6
Exam #6: Chapters 19 (Eyes), 20 (Face) & 21 (Head/neck)
Topic | Description |
---|---|
Conjunctiva | The thin mucus membrane that covers the sclera and lines the inside of the eyelids; Anteriorly it is continous with the transparent cornea. |
Cornea | The main structure involved in focusing light rays entering the eye. |
Lens | Is a clear elastic structure located behind the iris that serves to sharpen and focus visual rays on the globe's posterior surface (the retina). |
Emmatropia | The ability to read letters on the 20-foot line of an eye chart when standing 20 feet from the chart, indicating that the light rays are focused precisely on the retina; 20/20 vision. |
Myopia | Occur when the light rays are focused in front of the retina, making only objects very close to the eyes distinguishable; nearsightedness. |
Hypermetropia / Hyperopia | Results when the light rays are focused at a point behind the retina, making only objects very far from the eyes distinguishable; farsightedness. |
Exophthalmos | The eye globe bulging anteriorly within the orbit; likely resulting from orbital fractures. |
Hyphema | The collection of blood within the anterior chamber of the eye; is caused by the rupture of a blood vessel supplying the iris. |
Teardrop Pupil is an indication of... | Corneal laceration or ruptured globe; is a serious concern; results in an elliptical-shaped pupil. |
Anisocoria | Unequal pupil sizes; possibly a benign congenital condition or secondary to brain trauma. |
Diplopia | Double vision |
Signs and Symptoms of Retinal Detachment | Flashes of light, halos or blind spots w/in the normal field of vision; may also describe a "curtain" or shape being pulled over the field of vision. |
Blowout Fracture | Fractures of the medial wall or the floor of the orbit. |
Blow-up Fracture | Fractures of the orbital roof. |
Transport Position for Hyphema | Patient should be placed in a semi-reclined position to encourage blood pooling in the inferior anterior chamber. |
Ruptured Globe observations | May be obviously deformed; Anterior chamber may appear deepened; Hyphema or a black grainy substance may be visible w/in anterior chamber; "Teardrop" pupil may be observed; Contents may bulge outward through sclera, appearing as a black "foriegn object. |
A Ruptured Globe is considered a... | catastrophic injury; the most catastrophic injury; primary complaints are pain and total/partial loss of vision. |
Viral vs Bacterial Conjuctivities | SIMILAR SYMPTOMS: eyelids stick together, eye is typically red & swollen, may be sensitive to light; VIRAL: watery discharge w/ redness of the conjunctiva (pink eye); BACTERIAL: yellow or green discharge. |
Treatment for Impaled Object of the Eye | Do NOT attempt to remove the object, avoid applying direct pressure, if object is protruding outside the eye a foam/plastic/paper cup may be used to cover eye (in this case cover both eyes to minimize movement); then immediate hospital transport. |
Bone(s) of the Supraorbital Margin | The Frontal Bone. |
Bone(s) of the Infraorbital Margin | The Maxillary & Zygomatic bones. |
Photophobia | The eye's intolerance to light; light sensitivity. |
Stye | An infection of of a ciliary gland or a sebaceous gland caused by bacteria. |
Alveolar Process | A ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth. |
Auricle (Pinna) | The shape of the external ear maintained by accumulation of cartilaginous tissue. |
Eustachian Tube | The tube that connects the middle ear to the nasal passages; regulates pressure in the middle ear. |
Bone(s) of the Nasal Septum | Vomer bone (posterior) & ethmoid bone. |
Hyoid Bone | U-shaped bone suspended by ligaments arising from temperal bones; located in the anterior neck bewteen the mandible & larynx; tongue's attachment site; only bone that does not articulate w/ another bone; consists of central body & 2 projections (cornua). |
Oral Vestibule | The area from the lips to the teeth. |
Oral Cavity | The area including everything past the teeth, leading to the trachea. |
Papillae | Small, rough projections on the surface of the tongue that assist in movement of food during chewing. |
Lingual Frenulum | A small piece of mucus membrane that connects the tongue's underside to the floor of the oral cavity. |
Number of teeth | 32 |
Intruded Tooth | A tooth marked by its depression into the aveolar process relative to the contiguous teeth and to its match on the opposite side. |
Malocclusion | Deviation in the normal alignment of two opposable tissues (eg, the mandible and maxilla). |
Outermost Layer of Teeth | Enamel |
Bruxism | Clenching or grinding of teeth. |
How to palpate the TMJ? | Open jaw to move the coronoid process from under the zygomatic arch, place tips of index & middle fingers over the TMJ & have them open/close jaw; when mouth is open a depression is felt; for posterior, use 5th finger in external auditory meatus opening. |
Managing Tooth Avulsion | Before reimplanting, rinse w/ water/saline. Hold tooth in socket by biting on guaze (implanted in proper orientation). If not reimplanted, store in emergency preserving system or whole milk (cup w/ top). Do NOT clean/sterile/scrape tooth. Transport ASAP. |
Blow-Out Fracture Nerve Entrapment | Fracture or subsequent swelling may result in numbness in the lateral nose and cheek. |
When do you refer for stitches for lip lacerations? | Anytime there is a facial lacerations so as to limit the extent and visibility of any scars. |
Skin & Strength of Skull | Skull alone = 40 lbs /sq.in. Skull w/ skin = 420-490 lbs/sq.in. |
Function of Cerebellum | Balance & coordination (info from cerebrum), smooth, synergistic muscle control (relaying to muscles); injury recognized by uncoordinated, segmented, robot-like movements. |
Layers of the Meninges | Dure Mater (outer "hard mother"), Arachnoid Mater (cobweb layer), Pia Mater (inner "tender mother") |
Mechanism of Coup Injury | Stationary skull hit by moving object, injury on same. |
Mechanism of Contrecoup Injury | Moving skull hit by stationay object, injury on opposite side. |
Mechanism of Cervical Spine Injuries | Flexion of cervical spine + axial load |
Raccoon Eyes | Periorbital ecchymosis, a sign of basal skull fracture; typically involving the temporal bone, occipital bone, sphenoid bone, and/or ethmoid bone. |
Halo Test is an Indication of... | Skull Fracture, leaking CSF; frontal ethmoid bone usually involved. |
Neurocognitive Function - Analytical Skills | Determined by using the serial 7's method, counting backwards from 100 by 7's. |
Anterograde Amnesia | Memory loss after injury, can't maintain 3 object recall. |
Retrograde Amnesia | Memory loff before injury, cant't recall how or what lead up to injury, etc. |
Battle Sign | Mastoid ecchymosis, indicates skull fracture. |
Epidural Hematoma | Arterial bleeding between skull and dura mater, onset of symtptions w/in hours of trauma; symptoms include concussion, lucid period, disorientation, abnormal behavior, drowsiness, headache & unilateral pupil dilation. |
Cranial Nerve I | OLFACTORY (sensory) - SMELL - Test: have the athlete identify familiar odor applied to each nostril. |
Cranial Nerve II | OPTIC (sensory) - VISUAL ACUITY - TEST: Identify numbers of fingers held up and/or read from magazine; VISUAL FIELD - TEST: approach the eye from the side using your hand, athlete advising when they see it. |
Cranial Nerve III | OCULOMOTOR (motor) - PUPILLARY REACTION - TEST: Shine light in each eye and note reactions. |
Cranial Nerve IV | TROCHLEAR (motor) - EYE MOVEMENT - TEST: Have athlete follow your finger w/o moving their head. |
Cranial Nerve V | TRIGEMINAL (both) - FACIAL SENSATIONS - TEST: Have identify where touch is applied about the face (eyes closed); MOTOR - Have athlete hold mouth open as you attempt to close it. Clench teath while looking for deviation. |
Cranial Nerve VI | ABDUCENS (motor) - MOTOR - TEST: Have athlete move eyes laterally by following finger. |
Cranial Nerve VII | FACIAL (both) - MOTOR - TEST: Have athlete smile, wrinkle forehead, wink, puff cheeks, show teeth; SENSORY - TEST: Have identify taste. |
Cranial Nerve VIII | ACOUSTIC/VESTIBULOCOCHLEAR (sensory) - HEARING - TEST: Have identify sounds in both ears; BALANCE - TEST: Roberg test, touch knee with heel. |
Cranial Nerve IX | GLOSSOPHARYNGEAL (both) - MOTOR - TEST: Have athlete say "ah."; SENSORY - TEST: Gag reflex. |
Cranial Nerve X | VAGUS (both) - MOTOR - TEST: swallowing; SENSORY - TEST: gag reflex. |
Cranial Nerve XI | SPINAL ACCESSORY (motor) - MOTOR - TEST: Neck strength, resisted shoulder shrugs. |
Cranial Nerve XII | HYPOGLOSSAL (motor) - TONGUE MOVEMENT - TEST: Have athlete stick out tongue and move it around rapidly. Apply resistance w/ tongue depressor. |