A: The inner cell mass
B: The zona pellucida
C: The trophoblast
D: The blastocyst cavity
E: The morula
举一反三
- Which are essential condition of Implantation? A: The disappear of zona pellucida B: Syncytiotrophoblast is derived from the cytotrophoblast C: The synchronized development of blastocyst and endometrium and function in coordination. D: The pregnant women can produce enough progesterone E: The pregnant women can produce enough estrogen
- In mammalian development,<br/>which of the following is in the correct chronological order of event:_____ A: blastocyst, zygote, 4-cell,<br/>compacted morula B: zygote, 4-cell, compacted<br/>morula, blastocyst C: compacted morula,<br/>blastocyst, zygote, 4-cell D: 4-cell, compacted morula,<br/>blastocyst, zygote
- Not contained in primary follicles A: Primary oocyte B: Follicular cell C: Zona pellucida D: Cumulus
- Which of the following is wrong about the development of fertilized eggs? A: Zona pellucida reaction ensures single egg fertilization B: Egg swims in the fallopian tube and divides twice a day C: Egg moves in the fallopian tube and divides with its volume increasing D: Fertilized egg runs in the fallopian tube for 72 hours E: On the 4th day after fertilization, morula enters the uterine cavity
- Embryonic stem cells (ES cells) are pluripotent stem cells derived from the outer cell mass of a blastocyst, an early-stage pre-implantation embryo._
内容
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which one of the followings did not win Nobel Prize ？ A: Programmed cell death B: Regulation of cell cycle C: telomere and telomerase D: RNA interference E: cell necrosis
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Which of the following cells can not be found in the skin? A: Merkel cell B: Kupffer cell C: Langerhans cell D: Melanocyte
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Which of the statements on invasive thymoma is incorrect? A: Multiple metastases are likely to happen in the lung B: CT manifests as an irregular mass with unclear edges C: The main sign of mediastinal invasion is the disappearance of fat space D: It can grow along the pleura to the posterior mediastinum and pericardium on the same side E: It can enter the abdominal cavity through the aortic orfice and diaphragmatic aperture
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中国大学MOOC: Which of the followings can be used to describe“去健身”?
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Which cell is characterized by their phagocytic abilities () A: Fibroblast B: Mast cell C: Macrophage D: Plasma cell E: Adipose cell