Lesson 6C (Part 2) Flashcards
How long is the male urethra?
5x the length of the females urethra
Where does the male urethra extend from?
The internal urethral orifice to the external urethral orifice at the tip of the glans penis
What are the 3 regions of the male urethra?
- Prostatic urethra
- Membranous urethra
- Penile (spongy) urethra
Where does the prostatic urethra pass through?
The prostate gland
What structure opens into the prostatic urethra?
The ejaculatory duct from the prostate gland
What is the shortest and narrowest portion of the urethra?
The membranous urethra
Where does the membranous urethra pass through?
The urogenital diaphragm to enter the penis
What is the longest part of the urethra?
The penile (spongy) urethra
Where does the penile urethra extend from?
Extends the full length of the corpus spongiosum of the penis
What structure opens into the spongy urethra at the proximal region?
The ducts of the bulbourethral glands
What is the order (proximal to distal) of the male urethra portions?
Prostatic urethra –> membranous urethra –> penile (spongy) urethra
What is the inner portion of the penis?
The spongy urethra
What does the spongy tissue in the penis allow?
Things to pass through
- eg) urine, semen, etc
Where is the trigone?
It is the area of the bladder formed between the openings for 2 ureters and one opening for the internal urethral orifice
How many openings are there in the trigone?
3
- 2 for the ureters
- 1 for the internal urethral orifice
