Embryonic Development Thoracic Cage

Question 1

Neurulation

Answer 1

differentiation of ectoderm that gives rise to the development of the brain/spinal cord
Completed by the end of the week 4-formed of the neural

Question 2

Thoracic Derivatives from Ectoderm

Answer 2

nervous tissue epidermis skin, hair, hair follicles, sweat glands, nails

Question 3

Endoderm-functions

Answer 3

primitive gut
epithelial lining of the gastrointestinal tract
formation of the GI tract

Question 4

Thoracic Derivatives Endoderm

Answer 4

Epithelium of the GI tract
Epithelium of the respiratory tract, auditory tube/tonsils

Question 5

Mesoderm- first appearance of the notochord-functions

Answer 5

runs along the cranial-caudal axis of the embryo
Signals the ectoderm to become neural tissue
degenerates and persists as the nucleus pulposus

Question 6

Intermediate Mesoderm

Answer 6

gonads kidenys

Question 7

Lateral Mesoderm

Answer 7

Somatic Mesoderm
Splanchnic Mesoderm

Question 8

Somatic Mesoderm roles

Answer 8

forms the dermis of the skin of the ventral body region

form the pariteal serosa that lines the ventral body cavity

migrate developing limbs and produce bone, lige, dermis

Question 9

Splanchnic Mesoderm

Answer 9

heart blood vessels

mesenchymal cells

muscosal linngs connective tissue, digestive respiratory organs

Question 10

Thoracic Derivatives from Mesoderm

Answer 10

Skeletal smooth cardiac mm
cartilage bone connective tissue
blood, bone marrow lymphoid tissue
endothelium of blood vessels