I WONDER - How Many Muscles Does It Take To Smile?

The video explains that smiling involves 43 muscles in the face, as all facial muscles can be engaged in a big smile. It also discusses how nerves from the brain control these muscles. The video concludes by comparing the muscle usage in smiling and frowning, noting that both actions use a similar number of muscles.

How many muscles are typically involved in a large smile?

• 50 muscles

• 20 muscles

• 43 muscles

• 10 muscles

Which of the following statements is true about facial muscles?

• All smiles use the same number of muscles

• A big smile can engage all facial muscles

• Only frowning uses facial muscles

• Smiling does not involve any muscles

What initiates the movement of muscles when you smile?

• A reflex from the spine

• A nerve from the brain

• A signal from the heart

• A muscle contraction in the arm

What is the role of the nerve from the brain in smiling?

• It controls the movement of facial muscles

• It stops the muscles from moving

• It has no role in facial expressions

• It only affects the muscles in the arms

What is a common misconception about frowning compared to smiling?

• Frowning and smiling use the same muscles

• Frowning uses more muscles than smiling

• Frowning uses fewer muscles than smiling

• Frowning does not involve any muscles