Inguinal region

Question 1

Describe the inguinal ligament

Answer 1

ASIS to pubic tubercle obliquely

Question 2

Describe the inguinal canal

Answer 2

Oblique passage lying between deep and superficial rings parallel to inguinal ligament.

Question 3

What are the main structures of inguinal canal

Answer 3

Spemaric cord (M) Round Ligament (F), Blood, lymph and ilioinguinal nerve

Question 4

What is the anterior boundary of inguinal canal

Answer 4

Anterior wall of inguinal ligament by aponeurosis of ext oblique and superficial inguinal ligament

Question 5

What is posterior boundary of inguinal canal

Answer 5

Iliopubic tract which is a thickened margin of tranversalis fascia curving over ext iliac vessels and covered by peritoneum. Deep inguinal ring is lat 1/3 of canal and the conjoint trunk which is the medial 2/3 made of confluence of Internal oblique with transverse abd

Question 6

What is the superior boundary of inguinal canal

Answer 6

Superior wall is transverse abd, int oblique, and medial crus of ext oblique

Question 7

What is the inferior boundary of inguinal canal

Answer 7

Inguinal ligament, lacunar ligament, iliopubic ligament

Question 8

Describe the femoral ring

Answer 8

Post to post wall of inguinal canal. Borders are:

M - lacunar ligament A - inguinal ligament P - Pectineal ligament L - Fibrous Septa

Question 9

What is the inguinal triangle of Hesselbach

Answer 9

M - lateral margin of rectus sheath (linea semilunaris)
SupLat - Inferior epigastric vessels
Inf - Iliopubic tract
Medial to epigastric is location of direct hernia while lateral is indirect

Question 10

What are the fascia transitions around the spermatic cord

Answer 10

Transversalis fascia - internal spermatic fascia
Int oblique fascia - Cremesteric fascia
Int oblique muscle - Cremesteric Muscle
Ext oblique muscle - Ext spermatic fascia

Question 11

What are the 3 fascias of spermatic cord

Answer 11

External sperm, Cremesteric, Int sperm

Question 12

What are the 3 arteries of spermatic cord

Answer 12

Cremeseteric, Deferential, Testicular

Question 13

What are the 3 nerves of spermatic cord

Answer 13

genital of genitofemoral, Autonomic visceral afferent, ilioinguinal nerve

Question 14

What are the 3 structures around spermatic cord

Answer 14

Pampiniform plexus, vas deferens, testicular lymph

Question 15

What is an embryological remnant of spermatic cord

Answer 15

Processus vaginalis

Question 16

Describe the testicular artery

Answer 16

Supplies epid and testis (Abd aorta)

Question 17

Describe the cremesteric artery

Answer 17

Supplies cremesteric muscle and fascia (Inf epigastric)

Question 18

Describe deferent duct artery

Answer 18

Vas deferens (Inf vesical)

Question 19

What is the drainage of cremesteric vein

Answer 19

Drains into inf epigastric to ext iliac

Question 20

What happens when processes vaginalis opens

Answer 20

Indirect hernia

Question 21

What are the nerves of the spermatic cord

Answer 21

S = paraaorta ganglion P= Pelvic spl

Question 22

What nerve supplies the cremesteric muscle

Answer 22

Genitofemoral

Question 23

What does the ilioinguinal nerve supply

Answer 23

Sense to inguinal and ant genitalia

Question 24

What is the lymph path of this region

Answer 24

to ext and int iliac

Question 25

Describe thermoregulatory control

Answer 25

3 structures maintain ext genit at 1-2 deg below

1. Dartos muscle/F - inserts into scrotal skin, auto N, ascends scrot by constriction
2. Pampiniform plexus - Network of small spermatic veins
3. Cremesteric M