Lesson 6C (Part 8) Flashcards
What does the penis do?
It is a copulatory organ that is used to introduce the sperm into the vagina of a female
How many cylindrical masses of erectile tissue is there?
3
What are the 3 cylindrical masses of erectile tissue?
- 2 corpora cavernosa
- dorsal when erect
- anterior when flacid - 1 corpus spongiosum
- midventral
- posterior when flacid
What do the erectile tissue encircle?
The spongy urethra
How do the erectile tissues expand?
Distally
What does the expansion of the erectile tissue form?
The glans penis
How is the penis divided?
Into root and body
What is the attached portion of the penis?
The root
- bulb
What are 2 sections of the root of the penis?
- Bulb
2. Crura
Where is the bulb of the penis?
It is the proximal end of the corpus spongiosum
Where is the bulb of the penis anchored?
To the urogenital diaphragm
What is the bulb of the penis enclosed by?
By the bulbospongiosum muscle of the perineum
Where is the crura located?
At the proximal end of the corpora cavernosa that attach to the ischiopubic rami
What is the crura covered by?
The ischiocavernosus muscle
What is the free portion of the penis?
The body
What is the body of the penis composed of?
3 cylindrical columns of erectile tissue that is surrounded by connective tissue and skin
Glans penis
Distal end of the body
What does the glans penis have?
An opening for the urethra
What is another term for prepuce?
Foreskin
Prepuce
The skin that covers the body of the penis and continues over the glans penis
What is the name of the connective tissue that surrounds the testes and extends inward to divide the testes into lobules?
The tunica albuginea
What bundle of structures extend from the testes into the inguinal canal?
The spermatic cord
What erectile tissue forms the 2 dorsal cylinders in the body of the penis?
Corpora cavernosa
What portion of the root of the penis is anchored to the urogenital diaphragm?
The bulb
- root
What side of the penis is ventral?
The bottom
- when falcid
What side of the penis is dorsal?
The top
What is the order of theses structures from most anterior to most posterior, seminal vesicles, bladder and rectum?
Bladder –> seminal vesicles –> rectum
