When inserting a catheter what are the different parts of the male urethra you have to go through

When inserting a catheter in a male patient, the catheter must pass through several parts of the urethra. Here are the parts in the order that the catheter would encounter them:

1. Fossa Navicularis: This is the beginning of the urethra located at the tip of the penis. The catheter is inserted here.

2. Penile Urethra or Spongy Urethra: This is the longest part of the urethra that extends along the length of the penis. The catheter must be carefully threaded through this part.

3. Bulbous Urethra: This part of the urethra is located where the penis meets the body. It is wider and shorter than the penile urethra.

4. Membranous Urethra: This is a very short (about 1-2 cm) but important part of the urethra that passes through the urogenital diaphragm, a layer of the pelvic floor.

5. Prostatic Urethra: This is the final part of the urethra that the catheter must pass through. It is located within the prostate gland. The catheter must pass through this part to enter the bladder.

Remember, catheter insertion should always be done by a trained healthcare professional to avoid injury and infection.