7.12B Systems of the Human Body

PictureVocabulary

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Integumentary System

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Reacts to external environmental conditions and protects the body’s deeper tissues

Includes skin, hair, nails, and sweat glands

Muscular System

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Allows body to move and provides strength, balance, and warmth

Includes three types of muscles: skeletal, smooth, and cardiac; also includes

ligaments and tendons

Skeletal System

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Holds organs in place, provides structural support, stores minerals, and generates new

blood cells

Includes the bones and joints

Respiratory System

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Breathing supplies oxygen to the blood and gets rid of carbon dioxide

Includes airways, such as the trachea, as well as lungs and

alveoli

Circulatory System

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Circulates blood through the body, supplies oxygen and nutrients, and removes waste

Includes heart, arteries, and veins

Nervous System

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Functions as the control center, coordinating all actions and reactions

Includes brain, spinal cord, and nerves

Endocrine System

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Regulates body by secreting hormones into the bloodstream; also controls growth,

reproduction, and metabolism

Includes glands and hormones

Digestive System

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Breaks down food to make absorption into the body possible

Includes mouth, esophagus, stomach,

small and large intestines, and anus

Excretory System

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Filters, collects, and removes excess !uids and wastes from the bloodstream

Includes kidneys and bladder

Immune System

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Protects body by "ghting sickness and disease, such as caused by viruses and bacteria

viruses bacteria

Includes lymph nodes, tonsils, and spleen

Reproductive System

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Male and female systems used to produce offspring

Females have a uterus and ovaries, and males have a penis and testicles