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- Which of the following is not derived from the ectoderm? a. adrenal medulla b. epidermis of skin c. liver d. nervous systemWhich tissue type or organ is correctly matched with its germ layer tissue? A) nervous–mesoderm B) muscular–ectoderm C) stomach–mesoderm D) skin–ectodermComponent of bilaminar germ disc: a.Hypoblast and endoderm b.Epiblast and hypoblast c.Epiblast and ectoderm d.Ectoderm and mesoderm
- which germ layer (tissue) gives rice to our nervous system and outer coverings. a) endotherm b) ectoderm c) mesoderm d) endodermPlace the number corresponding to the correct germ layer in the blank. ____ Mesoderm ____ Ectoderm ____ EndodermCompare and contrast between the following: (1) Medio-lateral intercalation and radial intercalation (2) Visceral mesoderm and parietal mesoderm (3) Somatic mesoderm and somatic mesoderm
- Which primary germ layer gave rise to the cells that eventually became the central nervous system? a. endoderm b. ectoderm c. acrosome d. mesodermWhat would happen if the trophoblast did not secrete hCG upon implantation of the blastocyst? a. The cells would not continue to divide. b. The corpus luteum would continue to produce progesterone and estrogen. c. Menses would flush the blastocyst out of the uterus. d. The uterine mucosa would not envelop the blastocyst.Humans have three openings in an analogous place. Why is there a difference in the number of openings in pigs and humans? Describe two functions of the mesentery. Why is the ductus venosus no longer needed when the pig is born?
- The folding of ectoderm on the top of the embryo during organogenesis produces...? Group of answer choices a. somites b. the archenteron c. the neural tube d. the gastrula e. the blastulaThe placenta function to Select one: A. Produce blood cells B. Provide nutrition for the growing fetus C. Exchange nutrients and wastes D. Creat amniotic fluidChorionic villi develop from:- a. the zona pellucida. b. the endometrium. c. the syncytiotrophoblast. d. the embryoblast. e. the epiblast