Musculoskeletal system

Zygomaticus is also known as the

• buccinator muscle

• smiling muscle

• trunk muscle

• limb muscle

Answer explanation

The zygomaticus muscle is commonly referred to as the 'smiling muscle' because it is primarily responsible for elevating the corners of the mouth during smiling.

There are ------------ muscles that cause movement at the ankle and foot:

• 2

• 3

• 4

• 5

Answer explanation

There are 5 muscles that facilitate movement at the ankle and foot, including the tibialis anterior, gastrocnemius, soleus, peroneus longus, and peroneus brevis. Therefore, the correct answer is 5.

Which muscle is primarily responsible for the flexion of the elbow?

• Triceps brachii

• Biceps brachii

• Brachialis

• Deltoid

What is the primary function of the diaphragm muscle?

• Rotation of the shoulder

• Flexion of the spine

• Respiration

• Extension of the leg

How many muscles are involved in the movement of the shoulder joint?

• 5

• 6

• 7

• 8

What is the main role of the quadriceps muscle?

• Rotation of the ankle

• Flexion of the hip

• Extension of the knee

• Stabilization of the spine

How many muscles are primarily involved in the movement of the hip joint?

• 6

• 7

• 8

• 9

What is the common name for the sternocleidomastoid muscle?

• Back muscle

• Neck muscle

• Shoulder muscle

• Chest muscle