Germ Layer Differentiation

Question 1

at what weeks the tube of G.I.T and respiratory tract separates?

Answer 1

at 3rd week

Question 2

• lining of g.i.t
• respiratory tract
• tonsils
• thymus gland (for immunity)
• thyroid gland (for basal metabolism)
• parathyroid gland (calcium metabolism)
• bladder and urethra

Answer 2

endoderm

Question 3

• connective tissues
• cartilages
• bones
• muscles and tendons
• heart
• circulatory system
• respiratory system
• kidney /// ureter

Answer 3

mesoderm

Question 4

• nervous system
• skin
• hair
• nails
• mucuos membrane of mouth and anus

Answer 4

ectoderm