Question 1: Name the muscle that is primarily responsible for bending your elbow.

Answer: The biceps brachii.

Question 2: Identify the main muscle used when performing a sit-up to lift your upper body off the ground.

Answer: Rectus abdominis.

Question 3: Describe the function of the quadriceps muscle group during running.

Answer: The quadriceps extend the knee joint, helping to straighten the leg and propel the body forward during running.

Question 4: List three muscles located in the upper arm.

Answer: Biceps brachii, triceps brachii, brachialis.

Question 5: Explain how the contraction of the hamstring muscles affects leg movement when you are kicking a ball.

Answer: The hamstring muscles contract to bend the knee, bringing the lower leg backward to assist in kicking the ball.

Question 6: Sketch a simple diagram of the front view of the human body and label the major muscles involved in arm movement (such as biceps and triceps).

Answer: A correct sketch would show a front outline of a human figure with the biceps located at the front of the upper arm and the triceps at the back of the upper arm, both clearly labeled.

Question 7: Identify which muscle groups are involved in maintaining good posture when standing.

Answer: Erector spinae, abdominal muscles, and the muscles of the back and neck.

Question 8: Describe how the deltoid muscle helps in arm movement.

Answer: The deltoid muscle abducts the arm, lifting it away from the body, and also assists in movements like lifting or swinging the arm.

Question 9: Explain what happens to the muscles during resistance training (e.g., weightlifting).

Answer: Muscles experience microscopic tears in the muscle fibers, which, when repaired, lead to increased muscle size and strength. This process is called hypertrophy.

Question 10: Sketch a diagram of the back muscles involved in pulling movements, such as during a pull-up.

Answer: A correct sketch would depict the latissimus dorsi, trapezius, and rhomboid muscles on the back, with labels indicating their positions.