Which major organ system are you interested in?

by silent-again ·

Integumentary System (Hair, skin, nails, etc.)

% (11 votes)

Skeletal System (Bones)

% (10 votes)

Muscular System

% (9 votes)

Nervous System

% (12 votes)

Endocrine System (Hormones)

% (10 votes)

Cardiovascular System (Heart, blood, vessels, gas exchange etc.)

% (8 votes)

Lymphatic System (Fluids in the body, a little of immune system)

% (7 votes)

Respiratory System

% (8 votes)

Digestive System (Mouth, stomach, liver, intestines, etc.)

% (6 votes)

Urinary System (Kidneys, Bladder)

% (5 votes)

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