Mesoderm and endoderm

Question 1

Mesoderm

Answer 1

Muscle, bone, connective tissue,
serous linings of body cavity (peritoneum)
spleen (derived from foregut mesentery)
CV, lymphatic, blood
wall of gut tube
wall of bladder,
urethra, vagina, kindey adrenal, dermis
testes, ovaries

Question 2

Mesoderm-notochord

Answer 2

Notochord induces ectoderm to form neuroectoderm

It is the only postnatal derivative is the nucleus pulposus of the intervertebral disk.

Question 3

Mesodermal defect

Answer 3

VACTERL:

Vertebral defect
Anal atresia
Cardiac defect
Tracheo-esophageal fistula
Renal defect
Limb defect (bone and muscle)

Question 4

Endoderm

Answer 4

Gut tube epithelium (anal canal above pectinate line)
Luminal epithelial derivative
(lung, liver, gallbladder, pancreas, eustachian tube)

Thymus, parathyroid, thyroid follicular cells…