Inguinal Canal and Spermatic Cord

Question 1

What is the movement of the male testes during development?

Answer 1

start outside of the body, move inside to develop, must move back out of the body

Question 2

What is the external link of the scrotum to the body?

Answer 2

spermatic cord

Question 3

What must the external genitalia move through?

Answer 3

the inguinal canal
(inguinal rings)

Question 4

What are the contents of the spermatic cord?

Answer 4

-ductus deferens
-testicular artery
-pampiniform plexus of veins (testicular vein)
-genitofemoral nerve (for cremaster muscle)
-autonomic nerves
-lymphatics

Question 5

What are the contents of the inguinal canal?

Answer 5

-ductus deferens
-testicular artery
-pampiniform plexus of veins (testicular vein)
-genitofemoral nerve (for cremaster muscle)
-autonomic nerves
-lymphatics

Question 6

Do females have a cremaster muscle?

Answer 6

no

Question 7

What is the function of the gubernaculum?

Answer 7

ensure the gonads are moving in the proper direction
-shorten and steer the gonads forward

Question 8

What is the inner most lining of the body wall?

Answer 8

parietal peritoneal

Question 9

Where do the gonads originate in fetal development?

Answer 9

near the lumbar vertebrae in the posterior body wall
-near the kidney as well

Question 10

What is the inguinal “hole” ?

Answer 10

the place where the gubernaculum attaches to the skin and where the gonads have to pass through

Question 11

Do the gonads fit through in inguinal rings?

Answer 11

no.
-instead the layers of the abdominal wall must be extended through the rings

Question 12

What does the transversalis fascia become after the gonads get to the inguinal rings?

Answer 12

external spermatic fascia
(internal is right I think)

Question 13

What does the internal abdominal oblique muscle become after the gonads get to the inguinal ring?

Answer 13

cremaster muscle

Question 14

What does the external abdominal oblique muscle become after the gonads get to the inguinal ring?

Answer 14

internal spermatic fascia

Question 15

What is the processus vaginalis?

Answer 15

sheath of peritoneum
-run parallel to the spermatic cord; NOT WITHIN

Question 16

Where does the spermatic cord become the inguinal canal?

Answer 16

at the superficial inguinal ring

Question 17

What is difference in males in females of the cremaster muscle?

Answer 17

the cremaster muscle only has motor innervation in males
-sensory only in females

Question 18

What causes the labioscrotal swellings?

Answer 18

this is where the gubernaculum ends up following all of gonadal development

Question 19

What does the labioscrotal swellings become in males and females?

Answer 19

males- scrotum
females- labial majora

Question 20

Where is the deep inguinal ring?

Answer 20

halfway along the length of inguinal ligament and just superior to the edge

Question 21

Where is the middle inguinal ring?

Answer 21

more medial than the deep along the lingual ligament

Question 22

Where is the superficial inguinal ring?

Answer 22

at the bottom of the lingual ligament

Question 23

What is the innermost layer of the inguinal canal?

Answer 23

internal spermatic fascia

Question 24

What is the middle layer of the inguinal canal?

Answer 24

cremaster muscle

Question 25

What is the outermost layer of the inguinal canal?

Answer 25

external spermatic fascia

Question 26

Do females have inguinal canals?

Answer 26

no

Question 27

Do females have inguinal rings?

Answer 27

yes, but they are smaller than in males