Abdominal and Pelvic Viscera Arteries and Nerves

What artery emerges from the superficial inguinal ring?

external pudendal a.

What artery is a distal branch of the deep femoral artery and supplies the caudal abdominal mamma?

caudal superficial epigastric a.

What structure drains the mammae, prepuce, scrotum, and ventral abdominal wall as far cranially as the umbilicus?

superficial inguinal lymph nodes

What innervates the cremaster muscle and skin covering the inguinal region?

genitofemoral n.

What opening of a natural passageway in the pelvic region is made by the aponeurosis of the external abdominal oblique m.?

superficial inguinal ring

What opening of a natural passageway in the pelvic region is made by a gap between the internal abdominal oblique m, inguinal ligament, and rectus abdominis m.?

deep inguinal ring

What structures pass through the inguinal canal?

external pudendal a., external pudendal v., genitofemoral n., vaginal process (female), and spermatic cord (male)

What organ of the male reproductive system is primarily responsible for increasing volume of ejaculate and provide nutrients/buffers for sperm?

Prostate

During the indifferent stage of canine fetal development, what reproductive structure forms?

gubernaculum

What is the path sperm takes through the body in males?

seminiferous tubules of the testis - rete testes - efferent duct - duct of the epididymis - head of the epididymis - body of the epididymis - tail of the epididymis - ductus deferens - pelvic urethra - penile urethra - ejaculation

What portion of the penis makes up the bulb of the penis? What type of tissue is this?

corpus spongiosum, erectile tissue

What portion of the penis anchors the crus of the penis to the ischiatic tuberosity? What type of tissue is this?

corpus cavernosum, erectile tissue

What is the primary action of isciocavernosus m. and bulbospongiosus m.?

pushes blood distally to penis by compressing erectile tissue

The penis has a smooth muscle whose primary action is to keep penis retracted during the non-erect state. What is the name of this muscle? This paired muscle has (voluntary or involuntary) control?

retractor penis m, involuntary

What structure protects the free part of the penis?

prepuce

What is the haired skin on the outer portion of the prepuce?

external lamina of the prepuce

What is the inward folding, nonhaired skin on the inner portion of the prepuce?

internal lamina of the prepuce

A fold of the peritoneum that passes from the umbilicus to the diaphagm. In obese animals, this structure has a large accumulation of fat.

Falciform ligament

What is the portion of the lacelike folded mesogastrium that is adjacent to the ventral body wall and is often the first structure seen after incising the abdominal wall?

superficial leaf of the greater omentum

What is the portion of the lacelike folded mesogastrium that is adjacent to the abdominal organs?

deep leaf of the greater omentum

What is the portion of the lacelike folded mesogastrium that is the cavity housed between the two folds?

omental bursa of the greater omentum

What organ is enclosed in the superficial leaf of the greater omentum?

spleen

What organ is enclosed in the deep leaf of the greater omentum?

left lobe of the pancreas

You are performing an open castration on a large breed dog. This poses a risk of infection because open castrations expose the ______ whereas closed castrations do not.

vaginal cavity

What does the spermatic cord consist of?

ductus deferens, mesoductus deferens, testicular vessels, mesorchium, vaginal cavity, parietal vaginal tunic

What thin muscle lies adjacent to the spermatic cord near the parietal vaginal tunic? What is the action of this muscle?

cremaster muscle, thermoregulation of testes

In the male reproductive tract, what connects the gonad to the tail of the epididymis?

proper ligament of the testis

In the male reproductive tract, what connects the duct to the parietal vaginal tunic and scrotal skin?

ligament of the tail of the epididymis

In the female reproductive tract, what connects the gonad to the abdominal wall?This structure is along the cranial edge of the ____? This structure must be torn during ovariohysterectomy.

suspensory ligament of the ovary, mesovarium

In the female reproductive tract, what connects the ovary to the uterine horn?

proper ligament of the ovary

In the female reproductive tract, what connects the uterine horn to the vaginal tunic and labial skin? This structure is along the free edge of the _____?

round ligament of the uterus, mesometrium

The ovary is surrounded by a soft tissue sac called the?

mesovarium

The uterine horn is surrounded a double folded peritoneum called the?

mesosalpinx