The lateral border of the muscle forms the medial boundary of the triangular hollow known as the cubital fossa, which is situated anterior to the elbow.

To stimulate the pronator teres, a signal begins in the precentral gyrus in the brain and goes down through the internal capsule.

Also, additional slips from the medial intermuscular septum, from the biceps brachii, and from the brachialis occasionally occur.

If the elbow is flexed to a right angle, then pronator teres will turn the hand so that the palm faces inferiorly.

[4][5] The indirect English translation of pronator teres is therefore: cylindrical muscle that turns the forearm (and the palm along with it) down.