What muscle located in the posterior calf is responsible for flexing and pointing the foot and ankle?

The muscle located in the posterior calf that is primarily responsible for flexing the foot at the ankle and pointing the toes is the gastrocnemius. This powerful muscle plays a significant role in movements such as walking, running, and jumping by facilitating plantarflexion, which allows the foot to point downward.

The gastrocnemius is a two-headed muscle that originates from the femur and inserts into the heel via the Achilles tendon. When it contracts, it not only helps in pointing the foot but also assists in flexing the knee joint, making it vital for various activities requiring leg movement.

While the term "calf muscle" is often used colloquially to refer to the gastrocnemius, it doesn't specifically identify the exact muscle responsible for the actions described in the question. The hamstring and quadriceps femoris, on the other hand, are located in the thigh and are not involved in the actions of the posterior calf. Thus, the gastrocnemius is the most accurate and specific answer in this context.