Epidermis 183
Dermis 184
Subcutaneous fat layer 184
Hair and nails 184
Sebaceous glands 185
Eccrine sweat glands 185
Surface characteristics 185
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Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...
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