Sciatic nerve behind (superficial to) the adductor magnus muscle, and is itself in front of (deep to) one head of the biceps femoris muscle. At the popliteal fossa, the nerve divides into its two branches: The sciatic nerve is the largest nerve in the human body. The sciatic nerve supplies sensation to the skin of the foot, as well as the entire lower leg (except for its inner side). Sensation to skin to the sole of the foot is provided by the tibial nerve, and the lower leg and upper surface of the foot via the common fibular nerve. The sciatic nerve
Face and neck development of the human embryo three parts of the tongue. The surcus terminalis linguae is a V shaped line that separates the body of the tongue from the posterior part. The corresponding nerve for the three prominences of the anterior tongue is the trigeminal nerve. The posterior tongue is innervated by the glosopharyngeal nerve. The muscles of the tongue are innervated by the hypoglossal nerve. The thyroid appears as an epithelial proliferation in the pharynx floor between the copula linguae and the tuberculum impar. This point later will be the foramen cecum. Later, the thyroid descends in front of the pharyngeal gut when it already