Which embryonic germ layer is the human cardiovascular system derived
from ()
A: Ectoderm
B: Mesoderm
C: Endoderm
D: Intraembryonic coelom
from ()
A: Ectoderm
B: Mesoderm
C: Endoderm
D: Intraembryonic coelom
举一反三
- The epiblast is capable of forming which of the following germ layers? A: Ectoderm only B: Ectoderm and mesoderm only C: Ectoderm and endoderm only D: Ectoderm,mesoderm,endoderm
- Just underneath the pinacocyte layer of a sponge is a jellylike layer referred to as the ( ). A: ectoderm B: endoderm C: mesoderm D: mesohyl E: endochyme
- Which of the following is her likely anatomical defect? A: Ectoderm B: Endoderm C: Paraxial mesoderm D: Lateral plate mesoderm
- Which of the tumors is derived from the three germ cell layers? A: Teratoma B: Adenosquamous carcinoma C: Pleomorphic adenoma D: Carcinosarcoma
- Which of the following is primarily responsible for the functional<br/>changes of cardiovascular system in stress response ? () A: Central<br/>nerve system B: Hypothalamus-pituitary-adrenal cortex system C: Sympathetic-adrenal medulla system D: Glucagon and insulin E: Immune system