Which term is used for the outer cells of the human blastocyst

Rationale

Trophoblast

The outer cells of the human blastocyst are referred to as the trophoblast, which plays a crucial role in implantation and the formation of the placenta during early embryonic development.

A (Embryonic disk) YOUR ANSWER

The embryonic disk is a structure formed from the inner cell mass of the blastocyst and gives rise to the embryo itself, rather than being part of the outer layer involved in implantation.

B (Neural plate) YOUR ANSWER

The neural plate is a specialized structure that forms during neurulation, a process occurring later in embryonic development to give rise to the central nervous system, not related to the outer cells of the blastocyst.

C (Trophoblast) CORRECT

The trophoblast is the outer layer of cells of the blastocyst that directly interacts with the maternal tissue for implantation and later contributes to the formation of the placenta, establishing a crucial interface between the embryo and the mother.

D (Mesenchyme) YOUR ANSWER

Mesenchyme refers to a type of embryonic connective tissue that can give rise to various cell types, supporting the formation of organs and tissues during development, but it is not specifically associated with the outer cells of the blastocyst.

Conclusion

Understanding the terminology related to early embryonic development is essential for grasping the intricate processes involved in the formation of complex structures like the placenta. The trophoblast, as the outer layer of cells in the blastocyst, serves vital functions in establishing the necessary connections for successful implantation and subsequent embryonic growth and development.

Which term is used for the outer cells of the human blastocyst

Trophoblast

Related Questions

Related Quizzes

How familiar were you with this question?

Report an Issue

Rate this Practice Test