A 68-year-old man has suffered a myocardial infarction. He has a heart rate of 40 beats per minute currently. Your senior attending explains that the slow heart rate is due to the damage to the conduction pathways between the sinoatrial and atrioventricular nodes. His ventricles are being paced by the AV node alone. What artery supplies the AV node in the majority of patients?
Which compound is secreted only from the adrenal medulla?
Which nerve does NOT pass through the posterior triangle of the neck?
Out of the following, which anatomical structure lies within the spiral groove of the humerus?
Out of the following, which therapy for acute severe asthma or life-threatening asthma has been NOT been approved in recent guidelines?
An 80-year-old man has a swelling in his left groin with moderate pain and discomfort complaints. Diagnosed with an inguinal hernia, he is scheduled for elective surgery to repair the defect. Of the following, which nerve runs in the inguinal canal and is at risk of being damaged during surgery?
An 80-year-old female suffered a TIA 2 weeks ago. She has been admitted to the vascular ward as she will be undergoing carotid endarterectomy tomorrow morning. To explain the procedure and its complications, the surgeon gives her information about the procedure, telling her the artery will be tied during the operation. She inquires about the areas supplied by the different arteries. You explain that the internal carotid artery supplies the brain while the external carotid artery ascends the neck and bifurcates into two arteries. One of these arteries is the superficial temporal artery. Which of the following is the second branch?
An older woman has been brought into the emergency department with symptoms of a stroke. A CT angiogram is performed for diagnosis, which displays narrowing in the artery that supplies the right common carotid. Which of the following artery is the cause of stroke in this patient?
A 53-year-old-male is being operated on for a right hemicolectomy. In the procedure, the ileocolic artery is ligated. Which vessel does this artery originate from?
A young male is operated on for an open inguinal hernia repair. During the procedure, the cord is mobilized, and the deep inguinal ring is located. What structure forms the lateral wall of the deep inguinal ring?