Understanding the Human Skeletal System

What is the primary role of the skeletal system in the human body?

• To produce hormones

• To circulate blood

• To provide structural support

• To digest food

Which mineral is primarily stored in bones?

• Calcium

• Iron

• Potassium

• Magnesium

Why are bones strong yet light in weight?

• They are filled with air

• They are made of rubber

• They are made of metal

• They are hollow from inside

Which is the longest bone in the human body?

• Ulna

• Tibia

• Femur

• Humerus

What is the function of the skull?

• To aid in digestion

• To protect the brain

• To pump blood

• To store fat

How many bones make up the human skull?

• 22

• 25

• 30

• 18

What is the backbone also known as?

• Femur

• Ribcage

• Spine

• Pelvis

How many pairs of ribs are directly connected to the sternum?

• Seven

• Five

• Nine

• Twelve

What is the primary function of the forelimbs?

• To protect the heart

• To produce red blood cells

• To support the body weight

• To aid in lifting things

Which girdle connects the arms to the trunk of the body?

• Knee girdle

• Shoulder girdle

• Hip girdle

• Pelvic girdle