Second lecture of GIT surgery

Which of the following muscles originates from the lower lateral border of the scapula?

A.20-year-old man presents to the Emergency Department with a stab injury to the thenar eminence. On examination he is found to have a 2 cm long laceration with loss of sensation in the thumb and index finger and weakness: of the thenar muscles. Which of the following structures is most likely to have been injured?

A 35-year-old man develops septicaemia following surgery for a perforated acute appendicitis. He is hypotensive. Arterial blood gas analysis reveals the following: - pH: 7.25 (Normal: 7.35–7.45) - PaO₂: 7.2 kPa (Normal: 11.9–13.3 kPa) - PaCO₂: 7.5 kPa - Bicarbonate (HCO₃⁻): 17 mmol/L What is the most likely explanation for these findings?

A 75-year-old man is admitted for elective repair of an abdominal aortic aneurysm. Following the operation his systolic blood pressure falls below 90 mmHg and during resuscitation he is given an infusion of fluids. There is a choice of colloid or crystalloid. Which of the following best describes why the intensive therapy unit registrar decides to administer a colloid?