BIOL 2010 Lecture Notes - Lecture 6: Lanugo, Signify, Desmosome
Document Summary
The integumentary system: made up of the integument (skin) and the accessory organs (hair, nails, cutaneous glands, it is the most noticeable organ system. It is also the one that shows signs of aging first. Can show symptoms from various diseases of other organ systems as well. Jaundice and the liver for example: dermatology is the study of integument. Skin: largest and heaviest organ of the body, made of two parts: Dermis: the hypodermis is not part of the skin but is usually discussed here. Made of areolar tissue and adipose tissue. Regions with predominately adipose tissue is called subcutaneous fat: not uniformly distributed on an individual or between, skin thickness. Most regions are 1-2 mm in thickness sexes. Ranges though from 0. 5 mm for eyelids to 6 mm on the shoulder. Skin is classified as thick or thin based on the thickness of the epidermis alone.
