The occipitofrontalis covers the skull from the occipital bone to the frontal bone. It is a muscle of facial expression.

The occipitofrontalis covers the skull from the occipital bone to the frontal bone. It is a muscle of facial expression.

The sartorius, semitendinous and gracilis all make up the pes anserine tendon. Vastus medialis, although on the medial aspect of the knee, does not make up this muscle group as it inserts to the tibial tubercle via the patellar tendon.

The sartorius, semitendinous and gracilis all make up the pes anserine tendon. Vastus medialis, although on the medial aspect of the knee, does not make up this muscle group as it inserts to the tibial tubercle via the patellar tendon.

For this question, we are looking for a muscle that is located in the lateral compartment of the thigh. In addition, this muscle should contract when the thigh is either abducted or medially rotated. The correct answer is the tensor fasciae latae which is the only muscle of the choices that fits these categories.

For this question, we are looking for a muscle that is located in the lateral compartment of the thigh. In addition, this muscle should contract when the thigh is either abducted or medially rotated. The correct answer is the tensor fasciae latae which is the only muscle of the choices that fits these categories.

The geniohyoid muscle is associated with the chin, as it is a muscle that is the passageway from the chin to the hyoid bone. Contraction of the geniohyoid can move the hyoid bone to further widen the airway, aiding in respiration.

The nuchal ligament is located at the back of the neck and helps maintain the vertical position of the head. The sternocleidomastoid muscles are located in the lateral portions of the neck and helps to turn the head from side to side. The iliocostalis muscles run down the back, connecting the posterior portions of the ribs; this muscle is deep to most other muscles in the back. The popliteus muscle is located poterior to the knee and helps to move the tibia posteriorly, relative to the femur.

The oculomotor nerve is one of the cranial nerves. It runs from the brain to the orbital socket of the eye. Only two muscles in the orbital socket are not innervated by the oculomotor nerve: the superior oblique and the lateral rectus muscles. The lateral rectus is innervated by the abducens nerve (cranial nerve XI), and the superior oblique is innervated by the trochlear nerve (cranial nerve IV).

The orbicularis oculi closes the eyes. It originates from the frontal and lacrimal bones, and from the medial palpebral ligament, which is attached to the frontal process of the maxilla and inserts into the lateral palpebral raphe. The buccinator pulls the cheeks into the teeth, The procerus wrinkles the nose. The depressor labii inferioris pulls the lower lip down.

We are looking for a muscle around the mouth, leaving us with the risorius, orbicularis oculi, and zygomaticus minor muscles. The orbicularis oculi protrudes the lips and the zygomaticus minor elevates the upper lip. This means that the correct answer is the risorius muscle.