Podcast
Questions and Answers
What is the main function of Sertoli cells in the seminiferous tubules?
What is the main function of Sertoli cells in the seminiferous tubules?
- To contract and move fluid and sperm through the tubules
- To produce growth factors for the germ cells
- To act as phagocytes and remove germ cell debris
- To provide nutrients and regulate spermatogenesis (correct)
What is the typical ratio of Sertoli cells to germ cells in the human testis?
What is the typical ratio of Sertoli cells to germ cells in the human testis?
- 1 to 11 (correct)
- 1 to 50
- 1 to 20
- 1 to 5
Which cell type is responsible for the contraction of the seminiferous tubules to move fluid and sperm?
Which cell type is responsible for the contraction of the seminiferous tubules to move fluid and sperm?
- Sertoli cells
- Macrophages
- Peritubular myoid cells (correct)
- Germ cells
What is the approximate duration of the complete spermatogenesis process in humans?
What is the approximate duration of the complete spermatogenesis process in humans?
What is the role of retinoic acid (RA) in spermatogenesis?
What is the role of retinoic acid (RA) in spermatogenesis?
What is the main function of the spermatogonial stem cell (SSC) niche in the seminiferous tubules?
What is the main function of the spermatogonial stem cell (SSC) niche in the seminiferous tubules?
What is the main mechanism by which Sildenafil (Viagra) causes erection?
What is the main mechanism by which Sildenafil (Viagra) causes erection?
What is the main cause of priapism in sickle cell disease (SCD) patients?
What is the main cause of priapism in sickle cell disease (SCD) patients?
What is the main function of the acrosome reaction in the fertilization process?
What is the main function of the acrosome reaction in the fertilization process?
What is the maximum time period during which an oocyte can be fertilized after ovulation?
What is the maximum time period during which an oocyte can be fertilized after ovulation?
Which of the following is not a characteristic of the capacitation process in sperm?
Which of the following is not a characteristic of the capacitation process in sperm?
What is the maximum time period during which ejaculated sperm can remain viable in the female reproductive tract?
What is the maximum time period during which ejaculated sperm can remain viable in the female reproductive tract?
What is the primary function of the scrotum in the male reproductive system?
What is the primary function of the scrotum in the male reproductive system?
Which muscle is responsible for increasing the wrinkles of the scrotum to help cool the testes?
Which muscle is responsible for increasing the wrinkles of the scrotum to help cool the testes?
What is the role of the pelvic floor muscles in the male reproductive system?
What is the role of the pelvic floor muscles in the male reproductive system?
Which of the following is NOT a function of the bulbospongiosus muscle in the male reproductive system?
Which of the following is NOT a function of the bulbospongiosus muscle in the male reproductive system?
What is the primary role of the epididymis in the male reproductive system?
What is the primary role of the epididymis in the male reproductive system?
What is the primary function of the corpora cavernosa and corpora spongiosum in the penis?
What is the primary function of the corpora cavernosa and corpora spongiosum in the penis?
What is the main function of the vas deferens in the male reproductive system?
What is the main function of the vas deferens in the male reproductive system?
Which cell type in the testis is responsible for the production of testosterone in response to luteinizing hormone (LH)?
Which cell type in the testis is responsible for the production of testosterone in response to luteinizing hormone (LH)?
What is the term for a condition where there are less than 20 million sperm per milliliter in the ejaculate?
What is the term for a condition where there are less than 20 million sperm per milliliter in the ejaculate?
Which gland is responsible for producing approximately 25% of the seminal fluid that nourishes and protects sperm?
Which gland is responsible for producing approximately 25% of the seminal fluid that nourishes and protects sperm?
What is the primary role of Leydig cells in the testis?
What is the primary role of Leydig cells in the testis?
Which enzyme converts testosterone (T) to dihydrotestosterone (DHT) in the testis?
Which enzyme converts testosterone (T) to dihydrotestosterone (DHT) in the testis?
What is the main purpose of testosterone and FSH in the context of spermatogenesis?
What is the main purpose of testosterone and FSH in the context of spermatogenesis?
Where does most of the serum testosterone bind to in the body?
Where does most of the serum testosterone bind to in the body?
What is the classical mechanism of action for testosterone and DHT within cells?
What is the classical mechanism of action for testosterone and DHT within cells?
Which cells does testosterone primarily regulate in the testis?
Which cells does testosterone primarily regulate in the testis?
Besides reproduction, what other function do androgens play a role in?
Besides reproduction, what other function do androgens play a role in?
What is the main significance of intratesticular testosterone compared to serum testosterone?
What is the main significance of intratesticular testosterone compared to serum testosterone?
