26.2 Testes

Question 1

Seminiferous tubules contain two cell types:

• ___________ cells—sperm-forming cells
• _________cells—support sperm production

The Seminiferous tubules are surrounded by ___________ cells, which produce testosterone.

Answer 1

Seminiferous tubules contain two cell types:

• Spermatogenic cells—sperm-forming cells
• Sustentacular cells (Sertoli cells specifically)—support sperm production

The tubules are surrounded by interstitial cells, which produce testosterone.

Question 2

Interstitial cells (Leydig cells)

• between _________ tubules;
• produce and secrete _______, primarily _____, into surrounding interstitial fluid

Answer 2

Interstitial cells (Leydig cells)

• between seminiferous tubules;
• produce and secrete androgens, primarily testosterone, into surrounding interstitial fluid

Question 3

Each testis is divided into lobules (internal segments); contain tightly coiled loops called _________ where ______is produced

Answer 3

Each testis is divided into lobules (internal segments); contain tightly coiled loops called (seminiferous tubules) where sperm is produced

Question 4

Testes perform two important functions:

Answer 4

1. sperm production
2. secretion of androgen hormones, primarily testosterone

Question 5

Testes (testicles) located in __________. Each testis is divided into lobules; contain tightly coiled loops callled _____________ where sperm is produced

Answer 5

Testes (testicles) located in scrotum. Each testis is divided into lobules; contain tightly coiled loops callled seminiferous tubules where sperm is produced

Question 6

The seminiferous tubules are surrounded by ________ cells, which produce ______.

Answer 6

The Seminiferous tubules are surrounded by interstitial cells, which produce testosterone.