This A – Z Challenge post is brought to you by the letter “P”

A to Z Challenge

I am so excited to take part in this, my second, A – Z Challenge!  Last year I did the challenge using “recipes” as my inspiration.  Well, this year I’m going to draw on my nursing background and use “parts of the human body” as my inspiration!  Hmmm…a part of the body that starts with “Q”, “X” or “Z”….

It should be a lot of fun and I’m looking forward to seeing how everyone interprets the Challenge!

I found over 100 “Parts of the Human Body” that started with the letter “P”, so it was very difficult to choose.  However, since the last post, “O” is for Ovary,  was female orientated, I could pick only one.  So, without further ado,  “P”  is for :  Prostate:

  • The prostate gland is part of the urinary and reproductive systems of the male and is located just below the bladder.
  • It is about the size of a walnut and its two semicircular lobes (left and right) encircle the urethra, which is the tube that carries urine from the bladder and down through the penis.
  • It is partly muscular and partly glandular, with ducts opening into the  urethra.
  • The prostate gland is normally rubbery, pliable, and smooth. Because it is next to the rectum, the physician is able to feel its size and consistency with a gloved finger during a rectal exam.
  • The prostate gland has two functions. First, because it surrounds the urethra, its muscle fibres squeeze the urethra slightly and helps control the flow of urine.  Its second function is to secrete a slightly alkaline fluid that forms part of the seminal fluid, a fluid that carries sperm.
  • During male climax, the muscular glands of the prostate help to propel the prostate fluid, in addition to sperm that was produced in the testicles, into the urethra.
  • The semen then leaves the body out through the tip of the penis during ejaculation.

As I mentioned above, there are over 100 parts of the body that start with the letter “P”, I will list a few below.  For more “P” parts of the body, be sure to visit the McGraw-Hill Applied Biology Resource Center, which is where I found the definitions listed here.

pacemaker  A group of cells that has the fastest spontaneous rate of depolarization and contraction in a mass of electrically coupled cells; in the heart, this is the sinoatrial, or SA, node.

palate The roof of the oral cavity.

pancreas A mixed organ in the abdominal cavity that secretes pancreatic juices into the GI tract and insulin and glucagon into the blood.  {If I had not chosen prostate for the letter “P”,  I would have picked Pancreas.}

parotid gland  One of the paired salivary glands located on the side of the face over the masseter muscle just anterior to the ear and connected to the oral cavity through a salivary duct.

pectoral girdle The portion of the skeleton that supports the upper extremities.

pericardium  A protective serous membrane that surrounds the heart.

pituitary gland  A small, pea-shaped endocrine gland situated on the interior surface of the diencephalonic region of the brain, consisting of anterior and posterior lobes; also called the hypophysis.

plasma  The fluid, extracellular portion of circulating blood.

I found the above definitions at the McGraw-Hill Applied Biology Resource Center.  Visit their site and you’ll  find many, many, many more “P” parts of the body listed there!

The information contained in this post was obtained from C-Health Prostate Cancer Canada, Wexner Medical Center and McGraw-Hill Applied Biology Resource Center.


  1. well, I lost my guess on the “P” word, thought it would be pancreas, but didn’t consider the “male factor”. I think you definitely made the right choice as we need to know all about the men in our lives and how their body functions. 100 “p” parts….wow!!

    Patricia, Sugar & Spice & All Things ? Nice

  2. Pat, It was a struggle between pancreas and prostate…prostate won!!

  3. Wow, it was a lesson to me. Plasma – are you sure it’s not TV? ;-) Fab post, very educational. Thank you.

  4. Great post for “P”. Good for us to know all of the male part, like Pat has pointed out.
    Kathy at Oak Lawn Images

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