A 28-year-old runner reports to the clinic with complaints of knee pain after twisting her knee while making a sharp turn during a run. She describes a sensation of locking and clicking in the knee, especially when she bends it or tries to squat. Upon examination, the McMurray’s test, Apley’s test, and a full squat (duck walk) all reproduce her symptoms. Based on the patient’s symptoms and examination findings, what is the most likely diagnosis?

A patient comes into the clinic complaining of pain on the posterior aspect of the knee. All IT band tests are negative as is a varus stress test at 0 and 30 degrees. The only remarkable finding is pain on the lateral knee with external tibial rotation and knee flexion during manual muscle testing. What do you suspect?

Which zone of the meniscus has the greatest vascularity?

What occurs during the screw home mechanism of the knee when moving into full extension in an open kinetic chain?

Pulmonary surfactant is a chemical secreted to help reduce this ventilation-affecting factor:

When carbon dioxide binds to hemoglobin, what part is it binding to?

Which of the following is not part of the gastrointestinal tract?

Which digestive layer is responsible for peristalsis?

What type of epithelium lines the inside of most of the digestive system (stomach through large intestine)?

What is the main function of the respiratory system?