Chromatophores – Biology Final Exam
The key terms of Biology Final Exam include, Chromatophores, hair follicle, enamel organ, ameloblasts, odontoblasts, stratum germinativum, ovoid follicle, sebaceous gland.
hair follicle
living tissue containing blood vessels that encloses the root and contributes to hair growth, its chromatophores determine the pigment of the hair, follicle diameter will determine the hairs texture
enamel organ
produces the teeth- harder than bone, a fetus is born with the enamel organs for both sets of teeth- 20 milk and 32 permanent
ameloblasts
secrete the enamel- non-living and not made of cells
odontoblasts
secrete the dentine- made of living material containing nerves and blood vessels
pimples
bacteria entering sebaceous and sweat glands
stratum germinativum
a subdivision of the epidermis is the ______. this layer lies directly against the dermis, together they produce an assortment of derivatives
sweat glands
convolved structures found over the entire body surface and produce perspiration, modified sweat glands can also release milk and ear wax
hair
dead cells made of the protein keratin, the shaft lies in the epidermis while the root lies in the dermis
round follicle
straight hair
ovoid follicle
wavy hair
flat follicle
ribbon hair
sebaceous gland
produces oil that empties into the hair follicle and coats the hair for protection, bacteria entering _____ and sweat ____ may cause pimples
nails
serve to protect the ends of digits, the root is alive but the rest is made of epidermis, ____ lost or torn away will regenerate if the stratum germinativum has not been damaged
enamel organ
produces the teeth- harder than bone, a fetus is born with the enamel organs for both sets of teeth- 20 milk and 32 permanent
ameloblasts
secrete the enamel- non-living and not made of cells
odontoblasts
secrete the dentine- made of living material containing nerves and blood vessels
pimples
bacteria entering sebaceous and sweat glands
stratum germinativum
a subdivision of the epidermis is the ______. this layer lies directly against the dermis, together they produce an assortment of derivatives
sweat glands
convolved structures found over the entire body surface and produce perspiration, modified sweat glands can also release milk and ear wax
hair
dead cells made of the protein keratin, the shaft lies in the epidermis while the root lies in the dermis
hair follicle
living tissue containing blood vessels that encloses the root and contributes to hair growth, its chromatophores determine the pigment of the hair, follicle diameter will determine the hairs texture
round follicle
straight hair
ovoid follicle
wavy hair
flat follicle
ribbon hair
sebaceous gland
produces oil that empties into the hair follicle and coats the hair for protection, bacteria entering _____ and sweat ____ may cause pimples
nails
serve to protect the ends of digits, the root is alive but the rest is made of epidermis, ____ lost or torn away will regenerate if the stratum germinativum has not been damaged