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15 terms

Circulatory & Respiratory

The Human Body_5th Grade Science
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Aerobic exercise
Exercise that increases the need for oxygen
Anaerobic exercise
Exercise that builds muscles through tension
Arteries
Blood vessels that carry blood away from the heart
Diaphragm
Sheet-like muscle separating the chest from the abdominal cavity; creates suction to draw in air and expand lungs
Capillaries
Small blood vessels between the ending of the arteries and the beginning of the veins
Cholesterol
found in animal tissues, too much can lead to heart disease
Circulation
Flowing (such as the flow of blood throughout the body)
Heart rate
Number of heartbeats in one minute
Platelets
smallest blood cells to help form clots if you have an injury
Respiration
Throat; collects incoming air from the nose and passes air to the trachea
Plasma
Liquid part of the blood
Red blood cells
Blood cells that constantly traveling through your body delivering oxygen and removing waste
Sinuses
Hollow spaces in the bones of the head, helps regulate temperature of air breathed in
Veins
Blood vessels that carry blood toward the heart
White blood cells
Blood cells that help protect the body from disease