Honors Biology: Human Organ Systems

Front 1

Nervous System

Back 1

Structures: Brain, spinal cord, peripheral nerves

Hint 1

Function: Recognizes and coordinates the body's response to changes in its internal and external environments

Front 2

Integumentary System

Back 2

Structures: Skin, hair, nails, sweat and oil glands

Hint 2

Function: Serves as a barrier against infection and injury; helps to regulate body temperature; provides protection against ultraviolet radiation from the sun

Front 3

Respiratory System

Back 3

Structures: Nose, pharynx, larynx, trachea, bronchi, bronchioles, lungs

Hint 3

Function: Provides oxygen needed for cellular respiration and removes excess carbon dioxide from the body

Front 4

Digestive System

Back 4

Structures: Mouth, pharynx, esophagus, stomach, small and large intestines, rectum

Hint 4

Function: Converts foods into simpler molecules that can be used by the cells of the body; absorbs food; eliminates waste

Front 5

Excretory System

Back 5

Structures: Skin, lungs, kidneys, ureters, urinary bladder, urethra

Hint 5

Function: Eliminates waste products from the body in ways that maintain homeostasis

Front 6

Skeletal System

Back 6

Structures: Bones, cartilage, ligaments, tendons

Hint 6

Function: Supports the body; protects internal organs; allows movement; stores mineral reserves; provides a site for blood cell formation

Front 7

Muscular System

Back 7

Structures: Skeletal muscle, smooth muscle, cardiac muscle

Hint 7

Function: Works with skeletal system to produce voluntary movement; helps to circulate blood and move food through the digestive system

Front 8

Circulatory System

Back 8

Structures: Heart, blood vessels, blood

Hint 8

Function: Brings oxygen, nutrients, and hormones to cells; fights infection; removes cell wastes; helps to regulate body temperature

Front 9

Endocrine System

Back 9

Structures: Hypothalamus, pituitary, thyroid, parathyroids, adrenals, pancreas, ovaries (in females), testes (in males)

Hint 9

Function: Controls growth, development, and metabolism; maintains homeostasis

Front 10

Reproductive System

Back 10

Structures: Testes, epididymis, vas deferens, urethra, and penis (in males); ovaries, Fallopian tubes, uterus, and vagina (in females)

Hint 10

Function: Produces reproductive cells; in females, nurtures and protects developing embryo

Front 11

Lymphatic/Immune System

Back 11

Structures: White blood cells, thymus, spleen, lymph nodes, lymph vessels

Hint 11

Function: Helps protect the body from disease; collects fluid lost from blood vessels and returns the fluid to the circulatory system