Canalis inguinalis

Question 1

Inguinal channel

Answer 1

The inguinal channel in male dogs serves passageway for spermatic cord (inside tunica vaginalis), it goes through the channel towards scrotum to reach testicles; in female dogs the vaginal process contains just a little amount of fatty tissue.

Question 2

Spatium inguinale.

Answer 2

It has an inner and an outer opening between muscles: deep and superficial inguinal ring (anulus inguinalis). Since the two opening is not on the same level, they are not overlap each other: thus this “virtual” space between muscles, which leads from one opening to the other (filled with loose connective tissue)

Question 3

Anulus inguinalis superficialis

Answer 3

is bordered by:
crus mediale (or lamina abdominalis) and 
crus laterale (lamina pelvina) from
m. obliquus externus abdominis

Question 4

Anulus inguinalis profundus

Answer 4

is bordered by
rostral: m. obliquus internus abdominis

caudal: inguinal ligament
medial: m. rectus abdominis

Question 5

Canalis femoralis

Answer 5

Channel, where femoral vessels and nerves go towards hindlimb. Its opening from abdominal cavity, underneath inguinal ligament is the femoral ring (anulus femoralis).

Question 6

Femoral triangle

Answer 6

forms its borders:
m. sartorius pars caudalis (rostral),

m. pectineus (caudal),
lig. inguinale (proximal),
m. iliopsoas (medial), femoral fascia (lateral)

Question 7

Space under inguinal ligament - before canalis femoralis starts

Answer 7

- can be divided into:
lacuna vasorum (for femoral vessels) and

lacuna musculorum (for m. iliopsoas).