What anatomica structures must be avoided when taking blood at the ante-cubical fossa?

When taking blood from the antecubital fossa, the following anatomical structures must be avoided:

- Brachial artery: Located deep to the skin and fascia, the brachial artery is the main artery that supplies blood to the forearm and hand. It runs along the medial side of the antecubital fossa.

- Median nerve: The median nerve is a major nerve that supplies sensation to the lateral side of the forearm and hand. It runs along the lateral side of the antecubital fossa.

- Ulnar nerve: The ulnar nerve is another major nerve that supplies sensation to the medial side of the forearm and hand. It runs along the medial side of the antecubital fossa.

- Biceps brachii muscle: The biceps brachii is a large muscle that flexes the elbow. It is located on the anterior side of the arm and inserts into the ulna and radius.

- Brachioradialis muscle: The brachioradialis is a muscle that flexes the elbow and pronates the forearm. It is located on the lateral side of the arm and inserts into the radius.