This circular, erythematous skin lesion with central clearing is caused by a superficial fungal infection of keratinized tissue.
What is ring worm
This abdominal emergency results from blunt trauma to this organ in the left upper quadrant, leading to internal bleeding, left shoulder pain and hypovolemic shock.
What is the spleen
In 2008, Tom Brady suffered a non‑contact injury resulting tear of this knee ligament that runs from the anterior tibia to the posteromedial aspect of the lateral femoral condyle.
What is an ACL tear
This sesamoid bone embedded within the quadriceps tendon increases the mechanical advantage of knee extension.
What is the patella
This injury results from a repetitive stress injury and often affects the tibia, metatarsals, or femoral neck.
What is a stress fracture
This infection often begins as a painful lesion resembling a spider bite and can progress to abscess formation and systemic illness.
What is MRSA
This life‑threatening condition is defined by a core body temperature above 40°C (104°F) accompanied by central nervous system dysfunction.
What is Heat Stroke
Serena Williams missed much of the 2010 season after surgical repair of a complete rupture of this tendon connecting the calf muscles to the calcaneus.
What is the Achilles Tendon
This flat bone articulates with the clavicle and humerus and contains the glenoid cavity, acromion, and coracoid process.
What is the scapula
This chronic heel pain condition involves degenerative thickening of deep fascia of the foot where it attaches at the medial calcaneus
What is plantar faciaitis
This skin reaction causes itchy, raised red welts that often appear suddenly after an allergic trigger.
What are hives
This condition results from blunt force to the chest wall during a vulnerable phase of the cardiac cycle, leading to sudden cardiac arrest despite the absence of structural heart damage.
What is commotio cordis?
n 2015, Louisville guard Kevin Ware suffered this gruesome open injury of this bone that protruded through the skin during an NCAA tournament game.
What is the tibia
This bone undergoes endochondral ossification and is the most commonly fractured carpal bone due to its retrograde blood supply.
What is the scaphoid
This overuse condition involves tendinopathy of the common extensor tendon at the lateral elbow due to repetitive wrist extension and forearm supination.
What is lateral epicondylitis or tennis elbow
This chronic skin disease causes a rash with itchy, scaly patches, most commonly on the knees, elbows, trunk and scalp
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What is Psoriasis
This electrolyte‑related emergency caused by excessive fluid intake during prolonged activity presents with headache, confusion, seizures, and cerebral edema.
What is exercise‑associated hyponatremia
Simone Biles withdrew from Olympic events after experiencing this neurologic condition involving loss of spatial awareness and proprioceptive control during aerial maneuvers.
What are the twisties
This bone of the axial skeleton is formed by the fusion of five vertebrae and transmits body weight to the pelvis
What is the Sacrum
Chronic tensile loading of the patellar tendon at its inferior pole attachment leads to this degenerative condition commonly seen in jumping athletes.
What is patellar tendinopathy
This superficial skin infection is caused by Staphylococcus aureus and presents with honey‑colored crusted lesions that spread rapidly through skin‑to‑skin contact

What is impetigo
Following blunt chest trauma, this emergency is caused by trapped intrapleural air, producing rapid breathing difficulty, unequal chest expansion, and reduced breath sounds on one side.
What is pneumothorax
Bo Jackson’s football career ended after a traumatic posterior hip dislocation led to this ischemic condition of the femoral head.
What is avascular necrosis
This bone articulates with three others—the tibia, fibula, and calcaneus—and plays a key role in both the ankle and subtalar joints.
What is the talus
This shoulder overuse injury results from repetitive overhead motion and involves tearing of the labrum where the long head of the biceps tendon anchors.
What is a SLAP tear