Skin
glands in the dermis that produce sweat
sweat glands
part of the hair made up of dead, keratinized hair cells
shaft
sensory neurons that are wrapped around each hair follicle
hair follicle receptors
Common protein that makes your skin ‘elastic’
elastin
system of tissues made up by the skin, hair, and nails
integumentary system
List the layers of skin in order from outermost to innermost.
Epidermis, dermis, and hypodermis
layer of the hair where color is found
cortex
sensors in the dermis which feel vibration and pressure
Pacinian corpuscless
pigment which gives the skin a darker color
melanin
which layer of the "skin" contains adipose tissue?
the hypodermis
the cells in the epidermal layer of the skin
epithelial cells
In which part of the hair does hair growth occur?
the matrix, at the bottom of the hair follicle
tiny “ball” sensors that give you the ability to tell the distance between two objects that are close together
Meissners corpuscles
pigment which gives the skin a yellowish tone
carotene
another name for the hypodermis; the tissue under the skin
subcutaneous tissue
patterns of tension in the skin
cleavage lines
Name the 3 layers of the hair in order from outermost to innermost.
cuticle, cortex, medulla
dermal / dermis
tough protein found in your skin, hair, and nails
keratin
small muscles attached to hair follicles which make the hair stand on end
arrector pili
What are sebaceous glands, and what is the name of the substance they produce?
oil glands in the dermis that help keep the skin smooth; sebum
How are cells which make of the cuticle of the hair structured differently from cells which make up the medulla of the hair?
The cuticle is made up of har overlapping cells, while the medulla is made up of loosely connected cells.
What are free nerve endings and what do they sense? (Name at least 2)
dendrites that receive stimulation from the skin; they sense temperature changes, pain, itch, and movement.
special cells deep in the epidermis that make melanin
melanocytes
What is the lunula and where is it located?
pale, moon-shaped area of the nail. Located beyond the cuticle