During fertilization, spermatozoon enter ()
A. oogonia
B. primary oocyte
C. secondary oocyte
D. secondary follicle
E. primordial follicle
查看答案
Which does not belong to seminiferous tubule? ()
A. Sertoli cell
B. interstitial cell
C. spermatogonium
D. primaryspermatocyte
E. spermatid
Which is wrong about the structure of testis? ()
A. Thetunica albuginea is thickened on the posterior surface of testis to form mediastinum
B. The fibrous septa from mediastinum penetrates radially the testis, dividing it into pyramidal lobules
C. Each lobule is occupied by 1-4 seminiferous tubules
D. Theseminiferous tubules go into mediastinum testis to form rete testis
E. The tubulus rectus go into mediastinum testis to form rete testis
Nephron is composed of ()
A. renal corpuscle, medullary loop
B. proximal tubule, thin segment, distal tubule
C. renal corpuscle, renal tubule and collecting duct
D. renal tubule, collecting duct
E. renal corpuscle, renal tubule
which is correct about renal corpuscle? ()
A. renal tubules were dilated and formed in the cortex
B. located in the cortical labyrinth and the medullary cord
C. renal capsule and proximal tubules connected, located in the cortical labyrinth
D. Formed by renal capsule and glomerulus, located in cortical labyrinth and renal column
E. Formed by renal capsule and glomerulus, located in the medullary rays and renal column
微信支付 
支付宝支付