The medial/vertebral border of the scapula is an insertion for the Group of answer choicesdeltoidlatissimus dorsiserratus anteriorbiceps brachii

The muscle that inserts at the medial/vertebral border of the scapula is the Serratus Anterior.

Here's a step-by-step explanation:

1. The scapula, also known as the shoulder blade, is a triangular, flat bone of the shoulder girdle that connects the humerus (upper arm bone) with the clavicle (collar bone).

2. The medial (or vertebral) border of the scapula is the edge of the scapula closest to the vertebral column.

3. The Serratus Anterior is a muscle that originates on the surface of the 1st to 8th ribs at the side of the chest and inserts along the entire anterior length of the medial border of the scapula.

4. The primary functions of the Serratus Anterior muscle include allowing the forward rotation of the arm and pulling the scapula forward and around the rib cage that happens when someone throws a punch.

5. The other muscles listed (Deltoid, Latissimus Dorsi, and Biceps Brachii) do not insert at the medial border of the scapula. The Deltoid and Latissimus Dorsi insert at the humerus, while the Biceps Brachii inserts at the radius (forearm bone).