A: White film
B: Straight seminiferous tubules
C: Seminiferous tubules
D: output tubule
举一反三
- The efferent ductules of testis empty into the() . A: rete testis B: epididymis C: ductus deferens D: straight tubules E: seminiferous tubules
- Which<br/>is wrong about the structure of testis? () A: Thetunica<br/>albuginea is thickened on the posterior<br/>surface of<br/>testis to form mediastinum B: The<br/>fibrous septa from mediastinum<br/>penetrates radially the testis, dividing it into pyramidal lobules C: Each<br/>lobule is occupied by 1-4 seminiferous tubules D: Theseminiferous<br/>tubules go into mediastinum testis to form rete testis E: The tubulus<br/>rectus go into mediastinum testis to form rete testis
- 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
- 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
- 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
内容
- 0
Of<br/>the following, the one most closely associated with the efferent<br/>ducts of the testis is ____. A: mesonephric tubules B: mesonephric duct C: paramesonephric duct D: genital swellings E: urogenital sinus
- 1
The composition of nephrons does not include A: renal corpuscle B: proximal tubule C: collecting duct D: distal tubule
- 2
The basic structure of the research group does not include (). A: organizational structure B: Professional structure C: job title structure D: age structure
- 3
Which of the following are the excretory organs of insect? A: Malpighian tubules B: integument C: digestive tract D: tracheal system
- 4
The functional excretory units in the kidneys of fishes are ( ). A: flame bulbs B: nephridia C: malpighian tubules D: green glands E: nephrons