Explore the Body Systems

What is the main function of the digestive system?

• To regulate body temperature.

• To store energy for the body.

• To filter toxins from the blood.

• To break down food and absorb nutrients.

Which organ is responsible for pumping blood in the circulatory system?

• Heart

• Liver

• Kidneys

• Lungs

What part of the nervous system controls voluntary movements?

• Peripheral nervous system

• Central nervous system

• Autonomic nervous system

• Somatic nervous system

What do muscles do when they contract?

• Muscles expand and lose strength during contraction.

• Muscles remain the same length and generate heat.

• Muscles shorten and generate force to create movement.

• Muscles lengthen and relax to create movement.

How many bones are in the adult human body?

• 198

• 204

• 210

• 206

What is the role of the stomach in digestion?

• The stomach mechanically and chemically digests food, turning it into chyme.

• The stomach absorbs nutrients directly into the bloodstream.

• The stomach stores food without any digestion occurring.

• The stomach is primarily responsible for producing bile.

What type of blood vessel carries blood away from the heart?

• Veins

• Capillaries

• Arteries

• Venules

What is the brain's main function in the nervous system?

• To produce hormones for the endocrine system.

• To process sensory information only.

• The brain's main function is to act as the control center of the nervous system.

• To regulate body temperature exclusively.

What connects muscles to bones?

• Ligaments

• Tendons

• Cartilage

• Muscle fibers

What is the largest bone in the human body?

• radius

• tibia

• femur

• humerus