blood-testis barrier consists of:()
A: Capillary endothelium
B: Basement membrane
C: Cconnective tissue
D: Tight junction between Sertoli cells
E: Spermatogenic cells
举一反三
- 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
- The structure that constitutes the blood-testis barrier does not include A: capillary endothelium and basement membrane B: cell connection between spermatogonium C: tight juntion between sustentacular cell D: spermatogenic epithelial basement membrane
- The most important component in the blood-testis barrier is:() A: endothelial cell B: basement membrane C: tight junction D: connective tissue E: Leydig cell
- Where can pericyte be found？ A: Between the small artery endothelium and basement membrane B: Between the arteriole endothelium and basement membrane C: Between the capillary endothelium and basement membrane D: Outside the capillary basement membrane E: Between the lymphatic capillary endothelium and basement membrane
- In<br/>testis, spermatogenic cells exclude() A: spermatogonium B: primary spermatocyte C: Supporting cells D: Secondary spermatocyte E: Spermatid
内容
- 0
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
- 1
The main difference in composition between the tissue fluid and the<br/>plasma is that the contents of the tissue fluid () A: No blood cells B: Low protein content<br/>From<br/>a + content is high C: K<br/>+ content is high<br/>High<br/>content of e.c. with our fabrication: l -
- 2
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
- 3
When cells such as white blood cells of a vertebrate engulf bacteria, the membrane transport mechanism used is ( ). A: receptor-mediated endocytosis B: active transport C: passive transport D: Phagocytosis E: exocytosis
- 4
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