body systems
defends the body against disease
Immune System
outer layer of skin
Epidermis
filters "bad" stuff out of the blood
Kidney
removal of waste substances from the body
Excretion
name one defense against pathogens
skin, tears, saliva, phagocytes, or white blood cells
breaks down food so the body can use its nutrients
Digestive System
strong vessels that carry blood away from the heart to the body
Artery
Pumps blood throughout the body
Heart
breaking down food into smaller pieces that can be absorbed
Digestion
name 2 types of muscles
smooth, skeletal, and cardiac muscle
delivers oxygen to the bloodstream
Respiratory System
Breathing in
Inhalation
Absorbs oxygen and releases carbon dioxide
Breathing out
Exhalation
name 3 regions of the brain
cerebrum, cerebellum, brain stem
supports the body, protects organs, and permits movement
Skeletal System
Neuron
Absorbs all the nutrients from the food we eat
Small Intestine
Veins
the 4 components of blood
red blood cells, white blood cells, plasma, and platelets
carries materials to and from cells throughout the body
Circulatory System
a chemical which helps to control the level of substances in the body
Hormone
processes stimuli to create a response
Brain
tough flexible tissue that cushions joints and makes body parts such as the ears and trachea
Cartilage
name 5 bones
cranium, clavicle, scapula, clavicle, pelvis, vertebrae, ribs, humerus, ulna, radius, femur, tibia, fibula, etc.