In
testis, spermatogenic cells exclude()
A: spermatogonium
B: primary spermatocyte
C: Supporting cells
D: Secondary spermatocyte
E: Spermatid
testis, spermatogenic cells exclude()
A: spermatogonium
B: primary spermatocyte
C: Supporting cells
D: Secondary spermatocyte
E: Spermatid
C
举一反三
- The least visible cell on the section of the seminiferous tubule in the testis section is A: spermatogonia B: primary spermatocyte C: sertoli cells D: secondary spermatocyte
- Which cells are capable of a second mature division? A: Spermatogonia B: Primary spermatocyte C: Secondary spermatocyte D: Spermatids
- Which of the following cells in the testis contain the most smooth endoplasmic reticulum?() A: Spermatogonium B: Leydig cell C: Smooth muscle cell D: Sertoli cell E: Spermatid
- The cell in the testis that engulfs and digests the residual cytoplasm of sperm is A: spermatogonia B: interstitial cells C: Sertoli cells D: primary spermatocyts
- The<br/>blood-testis barrier consists of:() A: Capillary endothelium B: Basement membrane C: Cconnective tissue D: Tight junction between Sertoli cells E: Spermatogenic cells
内容
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Structure of blood testis barrier, excluding: A: capillary endothelium and basement membrane B: connective tissue C: seminiferous basement membrane D: spermatogonium E: close connection of Sertoli cells
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How much DNA does a primary spermatocyte contain?? 4N|6N|IN|2N
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In peripheral nerve fibers, sheath cells are () A: Astrocytes B: Oligodendrocytes C: Satellite cells D: Ependymal cells E: Schwann<br/>cells
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In<br/>central nerve fibers, the sheath cell is() A: Astrocytes B: Oligodendrocytes C: Satellite cells D: Ependymal cells E: Schwann cells
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In<br/>peripheral nerve fibers, the sheath cell is () A: Astrocytes B: Oligodendrocytes C: Satellite cells D: Ependymal cells E: Schwann cells