Positive Feedback
A Type Of Feedback Loop That Amplifies A Response, Such As During Childbirth.

Feedback Loop
A Biological System In Which The Output Influences The Input, Helping Maintain Homeostasis.

Homeostasis Mechanism
A Process Such As Sweating Or Shivering That Helps Maintain Homeostasis.

Melanin
A Pigment Produced In The Skin That Protects Against UV Radiation.

Dermis
The Inner Layer Of Skin Containing Blood Vessels, Nerves, And Glands.

Epidermis
The Outer Layer Of Skin In The Integumentary System.

Integumentary System
An Organ System Consisting Of Skin, Hair, And Nails That Protects The Body.

Joint
A Location Where Two Or More Bones Meet, Allowing Movement.

Tendon
A Connective Tissue That Connects Muscle To Bone.

Ligament
A Connective Tissue That Connects Bone To Bone.