QUESTION 6: MUSCLES, JOINTS AND ACTIONS (Choice question) 6.1 Which of the following muscles is NOT a part of the quadriceps muscle group? - Vastus Intermedius - Vastus Medialis - Semimembranosus - Rectus Femoris 6.2 Label the muscle in the photograph above (6.2) and explain any ONE anatomical action - NSC Dance Studies - Question 6 - 2016 - Paper 1

In the photograph, the highlighted muscle is the Rectus Femoris. One anatomical action of the Rectus Femoris is to aid in bending and flexing the knee, as well as extending the hip joint.

The largest muscle in the human body is the Gluteus Maximus. Its primary anatomical action is hip extension, which plays a critical role in activities such as standing up from a sitting position and climbing stairs.

The anatomical action occurring in the dancer's knees is flexion, which involves bending the knees and decreasing the angle between the thigh and the lower leg.

One muscle responsible for the action occurring in the dancer’s ankles is the Gastrocnemius, which aids in plantarflexion of the foot.

The hamstring muscles are primarily responsible for bending the knee and extending the hip joint. This enables activities such as running, jumping, and changing direction.

The muscles responsible for the dancer’s posture include the Erector Spinae, which helps in maintaining trunk extension; the Transverse Abdominis, which stabilizes the abdomen; and the Multifidus, which provides stability to the spine.