Understanding the Basics of Body Systems

What is the primary function of the skeletal system?

• To produce blood cells

• To provide support and shape to the body

• To control body movements

• To transport nutrients

Which of the following is NOT a type of muscle?

• Smooth

• Cardiac

• Skeletal

• Elastic

Which organ is NOT part of the respiratory system?

• Lungs

• Trachea

• Heart

• Bronchi

What is the process called by which muscles contract?

• Osmosis

• Diffusion

• Sliding filament theory

• Active transport

What type of muscle is found in the walls of the heart?

• Smooth

• Cardiac

• Skeletal

• Voluntary

Which of the following is a function of the skeletal system?

• Digestion of food

• Regulation of body temperature

• Protection of vital organs

• Absorption of nutrients

What is the smallest unit of a muscle called?

• Muscle fiber

• Muscle cell

• Sarcomere

• Myofibril

How does the respiratory system primarily help the body?

• By circulating blood

• By removing waste products

• By supplying the body with oxygen and removing carbon dioxide

• By breaking down food

Which of the following bones is NOT part of the axial skeleton?

• Skull

• Ribcage

• Femur

• Vertebrae

What is the role of tendons in the muscular system?

• To connect muscle to bone

• To connect bone to bone

• To provide elasticity to muscles

• To store energy