Skeletal System and Skin
Which part of the skeletal system protects your heart?
Ribs
The respiratory system is responsible for breathing and delivering __________ to the blood and releasing ___________ __________.
Oxygen/carbon dioxide
Food enters your mouth through this part of the digestive system.
Mouth
The ________ ________ is the control system of our body.
Nervous system
Name four organ systems.
Digestive system
Skeletal system
Respiratory system
Circulatory system
Nervous system
Thin outer layer of skin.
Epidermis
The muscle that helps move air into and out of the lungs.
Diaphragm
The _________ ___________ breaks food into nutrients.
Digestive system
Messages in our body travel to and from our _________.
Brain
Some organ systems are ___________ (they work on their own), like when we breathe, digest food, or when our hearts beat.
Involuntary
The thick under layer of skin (contains sweat glands, oil glands, blood vessels, and hair follicles)
Dermis
_______ carry blood to the heart.
Veins
Most nutrients are absorbed into the villi in this narrow tube.
Small intestine
______ nerves send messages from our senses and _________ nerves make our muscles move.
Sensory/motor
Some organ systems are __________ (we make them move), like when we walk, run, or eat.
Voluntary
The place where two bones meet is called a...
Joint
______ carry blood away from the heart.
Arteries
The wide tube that leads wastes out of the body.
Large intestine
A cell that carries a message.
Neuron
A body part that does a specific job.
Organ
It gives our body shape, protects our organs, and helps us move.
Name four parts of the circulatory system.
Heart, arteries, veins, capillaries.
Name five of the parts of the digestive system.
Mouth, esophagus, stomach, small intestine, large intestine
Explain how reflexes keep us safe.
They make us move quickly without thinking to avoid danger.
A set of organs that work closely together to complete a task.
Organ system