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cluster of mesodermal cells that form radiating out from notochord
the somites
what are somites
dermatome
myotome
sclerotome
They are segmented structures that give rise to various tissues in the developing embryo, including the dermis, skeletal muscle, and vertebrae.
dermatome
will become the dermis
as the dermis grows out it
stretches the ectoderm out with it
dermis is
mesodermal
epidermis is
ectodermal
what is below the epidermis
the basement membrane that attaches the epidermis to the dermis
as the dermatome radiates out it
takes the dermis and extensions of the nervous system to the skin surface.
The myotome matures into
muscle
What forms from the sclérotome
bonesthat develop from the somite in the embryo.
dermatome map
mapping of each set of nerves coming from the dorsal hollow nerve chord and all parts of the body where the nerve is innervating
where do our arms come from
the C6, C7, C8 dermatomes extending from the spinal cord to the upper limbs.
Integument
skin
Functions of the integument
Protection
communication
respiration
produce auxilary structures
Integument protection
a) physical protection
b) osmoregulation
c) thermoregulation
d) immune function
e) radiation
F) crypsis
