Final answer:
The statement 'Innervation of both muscles is primarily provided by the median nerve' about the pronator teres and pronator quadratus muscles is not entirely accurate. While both muscles are associated with the median nerve, the pronator quadratus receives specific innervation from the anterior interosseous branch of the median nerve.
Step-by-step explanation:
The student's question is identifying the incorrect statement about the pronator teres and pronator quadratus muscles. All options except for one correctly describe these muscles' locations, functions, and innervation in relation to pronation of the forearm. The correct answer to the question would highlight the statement that does not accurately reflect these muscles' anatomy or physiology.
It is true that both the pronator teres and the pronator quadratus play crucial roles in pronation of the forearm, converting it to a palm-down position. The pronator teres is indeed more proximal, located in the forearm closer to the elbow, and the pronator quadratus is a deeper muscle compared to the pronator teres.
However, innervation is the point where the exception lies; while the median nerve innervates both of these pronator muscles, it is not exclusively the median nerve for the pronator quadratus as it receives innervation from the anterior interosseous branch of the median nerve specifically. Therefore, the statement 'Innervation of both muscles is primarily provided by the median nerve' is not entirely correct and is the exception among the given options.