Category Archives: Reproductive

Bidloo Placenta

Best known as an anatomist, Govard Bidloo’s most famous work was his monumental Anatomia humani corporis published in Amsterdam in 1685, containing 107 copperplate engravings. Like so many large and expensive anatomical atlases of the time, the work was not a financial success, and in 1690 he published a Dutch translation entitled, Ontleding des menschelyken lichaams, using the same plates. (from national library of medicine)

Bidloo (link)

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Sperm Flagella TEM

Motile sperm cells typically move via flagella and require a water medium in order to swim toward the egg for fertilization. Most of the energy for sperm motility is derived from the metabolism of fructose carried in the seminal fluid. This takes place in the mitochondria located in the sperm’s midpiece (at the base of the sperm head). These cells cannot swim backwards due to the nature of their propulsion.  (from wikipedia)

photo credit David Phillips (link).  Image found at Post-mitotic tumblr

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Ovarian cyst

24 year old woman presents with a 4 year history of increasing abdominal distention and a feeling of fullness.  A CT scan of the abdomen revealed a mass measuring 20 x 24 cm.  At a different level there appeared to be a septum.

Image from AnatomyBox.

The patient was discharged to home from the emergency department and was to follow up in the surgical clinic.

Similar case reported NEJM (here)

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Vas Deferens

The vas deferens, also called ductus deferens, is part of the male anatomy, they transport sperm from the epididymis in anticipation ofejaculation.

There are two ducts, connecting the left and right epididymis to the ejaculatory ducts in order to move sperm. Each tube is about 30 centimeters long and is muscular (surrounded by smooth muscle). Its epithelium is lined by stereocilia.

They are part of the spermatic cords.

During ejaculation the smooth muscle in the walls of the vas deferens contracts reflexively, thus propelling the sperm forward. This is also known as peristalsis. The sperm is transferred from the vas deferens into the urethra, collecting secretions from the male accessory sex glands such as the seminal vesicles, prostate gland and the bulbourethral glands, which form the bulk of semen. (adapted from wikipedia)

NYU virtual microscopy (link)

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