Anatomy & Physiology Reproductive #14

Question

Which is the sequence of the path that sperm passes through for ejaculation to occur?

Answers

  1. Epididymis, vas deferens, urethra, ejaculatory duct, and seminiferous tubules.
    • Rationale:

      This is not the correct sequence of the path that sperm passes through for ejaculation to occur. The pathway for ejaculation begins in the seminiferous tubules not the epididymis.

  2. Seminiferous tubules, vas deferens, epididymis, ejaculatory duct, and urethra.
    • Rationale:

      This is not the correct sequence of the path that sperm passes through for ejaculation to occur. While the pathway for ejaculation begins in the seminiferous tubules, the next step is not the vas deferens; the sperm must pass through the epididymis first.

  3. Vas deferens, epididymis, seminiferous tubules, urethra, and ejaculatory duct.
    • Rationale:

      This is not the correct sequence of the path that sperm passes through for ejaculation to occur. The pathway for ejaculation does not begin in the vas deferens.

  4. Seminiferous tubules, epididymis, vas deferens, ejaculatory duct, and urethra.
    • Rationale:

      This is the correct sequence of the path that sperm passes through for ejacuation to occur.

Overview

Ejaculation is defined as the sudden discharging of fluid from a duct. When ejaculation occurs, rhythmic muscle movements propel the sperm forward.

Explanation

Learning Outcomes

When ejaculation occurs, sperm (stored in the seminiferous tubules) is expelled from the epididymis into the deferent duct. It then travels through the deferent duct up through the spermatic cord into the pelvic cavity, over the ureter to the prostate behind the bladder. This is where the vas deferens joins with the seminal vesicle to form the ejaculatory duct, which passes through the prostate and empties into the urethra.

Test Taking Tip

Think about the internal organs and structures of the male reproductive system when determining the correct path that sperm travel in order for ejaculation to occur.

Video Rationale