human physiology Describe the pathway that sperm travel during ejaculation, beginning in the testes and ending...

human physiology

Describe the pathway that sperm travel during ejaculation, beginning in the testes and ending at the penis. Then name and describe the function of the accessory glands involved in the process.

Expert Solution

Answer

Pathway of sperm :

Seminiferous tubules in testis
Rete testis
Vas efferens
Epididymis
Vas deferens
Ampulla of vas deferens
Ejaculatory duct
Prostatic urethra
Membranous urethra
Spongy / Penile urethra (Urethra segment in the peniis)

From penile urethra, sperm is ejaculated via urethral orifice.

Accessory glands

1) Seminal vesicle : It secretes thick seminal fluid that make upto 60% of semen volume. The fluid contains nutrients to activate the sperm such as fuctorse and vitamin C.

2) Prostate gland : It secretes fluid that make upto 30% of semen volume. This fluid functions to enhance the motility of the sperm. The fluid is slightly alkaline to protect the sperm when it travels through acidic medium in female reproductive tract.

2) Bulbourethral gland : It secretes fluid that make upto 10% of semen volume. This fluid contains mucus that helps in lubrication and cleansing of the urethra.

Sydney Mullin answered 1 year ago

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