The skin is the largest what
Organ
These pigment-producing cells protect against UV radiation.
Melanocytes
What are the four major types of tissue in the body?
Epithelial, Connective, Muscle, and Nervous tissue
The stratum corneum is made up of these “dead” cells.
Corneocytes
White blood cells are also called what?
Leukocytes
The subcutaneous tissue is also called this.
Hypodermis
The cells in the dermis that produce collagen and elastin.
Fibroblasts
Tissue that covers and lines the body.
Epithelial tissue
Desmosomes act like this between skin cells
Glue or Bridges
Antibodies are produced by what cells?
B lymphocytes
The skin eliminates waste through these two glands.
Sweat and sebaceous glands
Mast cells release this chemical in allergic reactions
Histamine
Tissue responsible for movement
Muscle tissue
Enzymes or chemicals that dissolve desmosomes cause what?
Exfoliation
These “killer” immune cells attack viruses and tumors.
T lymphocytes
The skin’s primary function
Protection
Langerhans cells protect against what?
Pathogens
Tissue responsible for transmitting signals
Nervous tissue
The ability of products to move into the skin is called what?
Penetration
This type of immunity is present at birth and provides the first line of defense.
Innate immunity
What is the middle supportive skin layer?
Dermis
What are the cells responsible for sensation?
Merkel cells
The dermis is primarily made of what type of tissue?
Connective tissue
The process of substances spreading deeper through the skin.
Permeation
These molecules trigger an immune response when recognized as foreign.
Antigens