A: spermatogonia
B: primary spermatocyte
C: sertoli cells
D: secondary spermatocyte
举一反三
- Which cells are capable of a second mature division? A: Spermatogonia B: Primary spermatocyte C: Secondary spermatocyte D: Spermatids
- In<br/>testis, spermatogenic cells exclude() A: spermatogonium B: primary spermatocyte C: Supporting cells D: Secondary spermatocyte 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 function of the testis is to produce sperm and male hormones, the following structure which produces sperm is ( ). A: Tubulus rectus B: Interstitial cell C: Convoluted seminiferous tubule D: Mediastinum testis
- 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
内容
- 0
The structure of the testis does not include A: White film B: Straight seminiferous tubules C: Seminiferous tubules D: output tubule
- 1
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
- 2
How much DNA does a primary spermatocyte contain?? 4N|6N|IN|2N
- 3
At which of these sites is the osmolality lowest (lowest concentration)? A: glomerular capillary B: proximal tubule C: bottom of the loop of Henle D: initial section of the distal tubule E: collecting duct
- 4
The efferent ductules of testis empty into the() . A: rete testis B: epididymis C: ductus deferens D: straight tubules E: seminiferous tubules