<s>[INST] context: The ulnar aery is the larger of the two terminal branches of the brachial aery.It begins in the cubital fossa at the level of the neck of the radius.descends through the anterior compament of the forearm and enters the palm in front of the flexor retinaculum in company with the ulnar nerve.It ends by forming the superficial palmar arch, often anastomosing with the superficial palmar branch of the radial aery.In the upper pa of its course, the ulnar aery lies deep to most of the flexor muscles.Below, it becomes superficial and lies between the tendons of the flexor carpi ulnaris and the tendons of the flexor digitorum superficialis.In front of the flexor retinaculum, it lies just lateral to the pisiform bone.BranchesMuscular branches to neighboring musclesRecurrent branches that take pa in the aerial anastomosis around the elbow jointBranches that take pa in the aerial anastomosis around the wrist jointThe common interosseous aery, which arises from the upper pa of the ulnar aery and after a brief course divides into the anterior and posterior interosseous aeries. [/INST] question: Which of the following is an aery of the forearm: | options: A: Brachial aery B: Axillary aery C: Ulnar aery D: Femoral aery | answer: C </s>