Skin Structure & Growth
This is a medical branch of science that involves the study of skin and its nature, structure, functions, diseases, and treatment
What is dermatology?
The epidermis is the outermost and _____ layer of skin
What is thinnest?
This layer has overlapping skin cells and forms a barrier to protect underlying tissues from infection, dehydration, chemicals, and mechanical stress
What is the stratum corneum?
The highly sensitive dermis layer of connective tissue is about ____ times thicker than the epidermis
What is 25?
The subcutaneous layer is also known by these 2 names
What are hypodermis and superficial fascia?
List the 2 types of nerves
What are sensory and motor?
This is a physician specialized in dermatology
What is a dermatologist?
The epidermis contains no these
What are blood vessels?
This layer consists of small cells through which light can pass
What is the stratum lucidum?
These small, involuntary muscles that attach diagonally to the side of a hair follicle's base are found in the dermis
What are arrector pili muscles?
Also known as adipose tissue
What is subcutaneous tissue?
This type of nerve conveys impulses from the brain or spinal cord to the muscles or glands
What are motor nerve fibers?
_____ skin is free of any visible signs of disease, infection, or injury
What is healthy?
The epidermis has many of these
What are small nerve endings?
This layer is composed of cells that look like granules and are filled with keratin
What is the stratum granulosum?
This is the outer layer of the dermis
What is the papillary layer?
Subcutaneous tissue gives the body _____ and contour
What is smoothness?
These are motor nerves attached to sweat and oil glands
What are secretory nerve fibers?
The skin is the body's largest this
What is organ?
The epidermis has this many layers
What is 5?
This layer is where the process of skin cell shredding begins and is the largest layer of the epidermis
What is the stratum spinosum?
This is the deeper layer of the dermis
What is the reticular layer?
Subcutaneous tissue contains ____ for energy
What are fats?
This type of nerve sends messages to the central nervous system and brain to react to heat, cold, touch, pressure, and pain
What are sensory nerve fibers?
The surface of healthy skin is slightly _____, and its immune responses react quickly to organisms that touch or try to enter it
What is acidic?
These are the names of the layers of the epidermis
What are stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum germinativum?
This layer is more commonly called the basal cell layer; it produces new epidermal cells and is responsible for the growth of the epidermis; it contains melanocytes
What is the stratum germinativum?
These are membranes of ridges and grooves that attach to the epidermis
What are dermal papillae?
Subcutaneous tissue can vary in _____ according to an individual's age, gender, and general health
What is thickness?
____ is one of the first senses the human body develops
What is touch?