Practical topic 28

Question 1

What is the inguinal canal passageway for in dogs?

Answer 1

• Male dogs:
  
  • Spermatic cord (inside tunica vaginalis). Through channel towards scrotum to reach testicles
• Female dogs:
  
  • Processus vaginalis (inside fat and lig. teres)
• In both genders:
  
  • A. pudenda externa

Question 2

What is the “virtual” space between muscles (which leads from one opening to the other) called?

Answer 2

Spatium inguinale

Question 3

What is the superficial inguinal ring composed of?

Answer 3

• Lateral crus:
  
  • M. obliquus externus abdominalis
• Medial crus:
  
  • M. obliquus externus abdominalis

Question 4

What is the deep inguinal ring composed of?

Answer 4

• Inguinal ligament
  
  • Caudal
• M. rectus abdominis
  
  • Medial
• M. obliquus internus abdominis
  
  • Cranial

Question 5

A. profunda femoris

Ex?

Answer 5

Ex. a. iliaca externa

Question 6

A. profunda femoris

Gives off?

Answer 6

• Tr. pudendoepigastrica
  
  • A. pudenda externa (through the inguinal canal)
    
    • A. epigastrica caudalis superficialis
  • A. epigastrica caudalis (caudal part of m. rectus abdominalis, and ventral part of abdominal muscles) (Exit the abdomen through the inguinal canal
    
    • A. labialis/scrotalis ventralis
  • Continues as: a. circumflexa femoris medialis

Question 7

Lnn. inguinalis superficialis

Localization in females

Answer 7

Cranial to vaginal process/tunic, underneath inguinal mammary glands

Question 8

Lnn. inguinalis superficialis

Localization in males

Answer 8

Embedded in fat between abdominal wall and medial surface of thigh, just dorsal to penis (at the level of bulbus penis)

Question 9

N. genitofemoralis

Arises from?

Answer 9

L3 and L4

(leaves abdomen through canalis inguinalis)

Question 10

N. genitofemorals

Give the brancehs and what they supply

Answer 10

• Femoral branches
  
  • Skin of proximal, medial thigh
• Genital branches:
  
  • Skin of pudendal region
• Male:
  
  • Runs with spermatic fascia, gives off branches of m. cremasterica
• Female:
  
  • Runs with vaginal process, gives off branches to inguinal mammary gland