Which body system supports body structure, protects organs, produces blood cells (bone marrow), and enables movement?

• Muscular System

• Skeletal System

• Nervous System

• Digestive System

Which of the following are the main structures of the Muscular System?

• Bones, cartilage, ligaments

• Heart, blood vessels, blood

• Skeletal muscles, smooth muscles, cardiac muscle

• Brain, spinal cord, nerves

The Circulatory (Cardiovascular) System is responsible for transporting oxygen, nutrients, and hormones, removing waste, and supporting immune response.

• True

• False

The main structures of the Respiratory System are _______, trachea, and bronchi.

• Lungs

• Kidneys

• Stomach

• Liver

Which body system breaks down food, absorbs nutrients essential for growth and energy?

• Digestive System

• Nervous System

• Respiratory System

• Muscular System

Match the following body systems to their primary functions:

• B

• Facilitates movement, maintains posture, generates heat

• C

• Controls body functions, processes sensory information, coordinates movement

• A

• Supports body structure, protects organs, produces blood cells, enables movement

Match the body system to its main organs:

• 5

• Skin, hair, nails

• 4

• Glands (pituitary, thyroid, adrenal, pancreas)

• 1

• Ovaries, testes, uterus, penis

• 3

• Lymph nodes, spleen, white blood cells

• 2

• Kidneys, bladder

Match the body system to its main function:

• Produces hormones regulating growth, metabolism, reproduction, development

• Urinary System

• Removes waste from blood, regulates fluid balance

• Integumentary System

• Protects body, regulates temperature, prevents infection

• Immune/Lymphatic System

• Enables reproduction and sexual development

• Endocrine System

• Defends against pathogens, removes toxins, supports tissue health

• Reproductive System

The ________ system produces hormones regulating growth, metabolism, reproduction, and development.

• Endocrine

• Digestive

• Respiratory

• Skeletal

The main organs of the immune/lymphatic system are ________, spleen, and white blood cells.

• lymph nodes

• kidneys

• lungs

• pancreas