Vocab and General
The major organs and structures of the Integumentary system.
What is skin, hair, nails and glands
4 functions of the integumentary system.
stop water loss
protection
sensory perception
regulate body temp
Vitamin D synthesis
Excrete wastes
name the 2 layers of the skin
epidermis
dermis
hypodermis or subcutaneous
The name of the casing/tube that hair grows in.
hair follicle
Function of nails
protect your digits
2 things that happen in the skin when you are hot.
vasodilation
sweating - sweat glands activated
The location where melanin is produced.
epidermis - stratum basale
The type of connective tissue that makes up the majority of the hypodermis.
Adipose
The part of the hair that is still alive
Hair root
White, half moon area of nail near the root
lunula
3 things your body does in response to being too cold.
vasoconstrict
shiver
goosebumps
Vitamin that the integumentary system produces.
Vitamin D
4 structures that are found in the dermis
blood vessels
nerves
sweat and oil glands
hair follicles
Sebaceous glands are categorized as this type of glandular tissue
holocrine
Visible part of the nail
Nail plate
2 types of connective tissue found in skin
areolar
dense irregular
adipose
blood
Function of dermal papillae
Form fingerprints and improve gripping ability
What are keratinocytes and where are they found?
Cells that go through keratinization - all cells that make up the epidermis except for melanocytes
Nails and hair are made of this.
keratin
2 types of sweat glands
eccrine
apocrine
2 types of epithelial tissue found in skin
stratified squamous
glandular tissue (simple or stratified cuboidal)
Its function is to raise arm hair up to try and trap heat when a person is cold.
Arrector pili muscle
s. corneum
s. lucidum
s. granulosum
s. spinosum
s, basale
2 types of glands that secrete into hair follicles
sebaceous glands
apocrine sweat glands
Why apocrine glands are poorly named
they are categorized as merocrine glands