The Muscular System and the Major Skeletal Muscles

Which muscles help you move your shoulders every which way?

• Quadriceps

• Pectoralis muscles

• Rectus abdominus muscles

• Deltoid muscles

Which muscles are found on each side of your upper chest?

• Deltoid muscles

• Pectoralis muscles

• Quadriceps

• Rectus abdominus muscles

Which muscles are often called abs for short?

• Deltoid muscles

• Pectoralis muscles

• Quadriceps

• Rectus abdominus muscles

Which muscles do you tense when you make a muscle in your arm?

• Pectoralis muscles

• Deltoid muscles

• Biceps muscle

• Rectus abdominus muscles

Which muscles are on the front of your thighs?

• Pectoralis muscles

• Rectus abdominus muscles

• Deltoid muscles

• Quadriceps

Which muscle is under the skin and fat in your behind?

• Gluteus maximus

• Quadriceps

• Pectoralis muscles

• Deltoid muscles

What is the muscle on the back of your arm known as?

• Quadriceps

• Pectoralis muscles

• Deltoid muscles

• Triceps

What causes shivering?

• Muscles in the neck

• Heart pumping blood

• Muscles contracting and relaxing to increase body heat

• Jaw muscles chewing

How many muscles does it take to smile?

• 10

• 43

• 5

• 17

Which is the hardest-working muscle in the body?

• Quadriceps

• Pectoralis muscles

• Deltoid muscles

• Heart