Lecture 3: Pelvic Cavity 2

Question 1

List the male and female portions of the following external reproductive primordia:

1. unpaired genital tubercle
2. paired genital folds
3. paired genital swellings

Answer 1

1. M-glans penis F-clit
2. M:shaft of penis F:labia minora
3. M: scrotum F: labia majora

Question 2

What are the male internal reproductive structures?

Answer 2

1. spermatic cord
2. prostate gland
3. seminal vesicles
4. bulubourethral glands
5. ejaculatory ducts

Question 3

Define penile raphe

Answer 3

raised ridge between the glans penis and the scrotum; line of fusion

Question 4

Define scrotal raphe

Answer 4

between penile raphe and perineal raphe

line of fusion between the genital swelling

Question 5

Define the perineal raphe

Answer 5

between the scrotal raphe and the anus

Question 6

Describe the 3 columns of the erectile tissue in the shaft of the penis

Answer 6

1. paired corporal cavernosa (2): extensions of the crura, dorsal to the third column; surrounds a deep artery
2. corpus spongiosum: houses the urethra

Question 7

What are the layers of tissue surrounding the penis?

Answer 7

Dartos fascia
Buck’s fascia
Deep fascia

Question 8

List the layers of the scrotum

Answer 8

1. skin
2. dartos fascia and muscle
3. external spermatic fascia
4. cremasteric fascia
5. internal spermatic fascia
6. parietal tunica vaginalis
7. visceral tunica vaginalis
8. tunica albuginea

Question 9

Describe the where sperm is produced and how it gets to where it is stored

Answer 9

Sperm is produced in the testes and then it travels through the rete testes and the efferent ductules to get to the epididymis where the sperm matures and is stored

Question 10

Describe the spermatic cord including its function and contents

Answer 10

function: suspend the testes in scrotum
contains:
ductus deferens, testicular artery and artery of the ductus deferens, cremasteric artery. pampiniform plexus, sympathetic fibers, genital branch of genitofemoral nerve (L1)

Question 11

Define the ductus deferens

Answer 11

muscular tune that takes the sperm form the epididymis to the ejaculatory duct

Question 12

Define the testicular artery

Answer 12

from the aorta via the gonadal artery; supplies the testes and epididymis

Question 13

Define the pampiniform plexus

Answer 13

drains to the testicular vein to the inferior vena cava or the renal vein

Question 14

Describe the prostate gland

Answer 14

located under urethra from bladder

produces prostatic fluid

Question 15

Describe the seminal vesicles

Answer 15

elongated structures between the urinary bladder and the rectum; secrete alkaline fluid

Question 16

Describe the bulbourethral glands

Answer 16

pea sized glands that are located posterolaterally to the membranous urethra; produce mucous like secretion in arousal

Question 17

Where do the ejaculatory ducts begin and converge?

Answer 17

Begin at the union of theductus deferens and seminal vesicle near the neck of the urinary bladder

converge at the seminal colliculus at the prostatic utricle

Question 18

Describe the urethra in terms of

1. preprostatic
2. prostatic
3. membranosus
4. spongy

Answer 18

1. very short; extends to the prostate gland
2. passes through the prostate
3. passes through the urogenital diaphragm
4. passes through the corpus spongiosum

Question 19

List the female external genitalia

Answer 19

pudendal cleft 
mons pubis 
labia majora 
labia minora 
clitoris

Question 20

List the female internal reproductive organs

Answer 20

vagina
uterus
oviducts
ovaries

Question 21

Define the pudendal cleft

Answer 21

cleft between the anterior parts of the labia majora

Question 22

Define the mons pubis

Answer 22

rounded, fatty prominence anterior to the pubic symphysis

Question 23

Define the labia majora

Answer 23

prominent skin folds protecting the external urethra and the vaginal orificies

Question 24

Define the labia minora

Answer 24

fat free, hairless skin folds; enclosed within pudendal cleft and labia majora

Question 25

Describe the clitoris

Answer 25

erectile structure; consists of the glans covered by prepuce, angle, body, and paired crura

Question 26

What are the parts of the uterus?

Answer 26

funds body isthmus cervix

Question 27

What are the layers of the uterine wall?

Answer 27

1. perimetrium 2. myometrium (most vascular) 3. endometrium

Question 28

What are the three openings into the uterus?

Answer 28

os cervix and the paired (2) oviduct openings

Question 29

What is the function of the broad ligament?

Answer 29

suspended the uterus and support it during pregnancy

Question 30

Define the mesovarium

Answer 30

attaches to the ovaries

Question 31

Define the mesosalpinx

Answer 31

attaches to the uterine tubes

Question 32

What are the ligamentous structures of the female reproductive organs?

Answer 32

round ligament: attaches the lateral aspects of the uterus to the labia majora (passes through the inguinal canal) transverse cervical ligament- attaches to the lateral pelvic wall to the cervix and the lateral fornix uterosacral ligament: attaches middle sacrum to cervix suspensory ligament of the ovary: extends from the lateral pelvic wall to the ovary

Question 33

What are the uterine pouches?

Answer 33

vesiculouterine pouch: between the urinary bladder and the uterus rectouterine pouch: between the sigmoid colon, rectum, and uterus

Question 34

What is the order of the uterine tubes from the ovary to the uterus?

Answer 34

infundibulum ampulla isthmus intramural

Question 35

What are the characteristics of the ovaries?

Answer 35

small, almond shaped, suspended by mesovarium, produce and expel egg follicles

Question 36

Describe the rectum

Answer 36

begins at S3 | consists of transverse folds, anorectal flexure, and the ampulla

Question 37

What are the portions of the anal canal?

Answer 37

internal anal ring sphincter external anal ring sphincter anal columns anal valves

Question 38

Describe the pectinate line

Answer 38

- marks the junction between the endoderm and ectoderm portions of the anal canal - marks divisions between the arterial, venous, lymphatic, and nerve supply

Question 39

What is the arterial supply of the anal canal?

Answer 39

inferior rectal artery