Muscles and neurovasculature of the equine penis

What muscles are associated with the penis

• urethralis

• bulboglandularis

• bulbospongiosus

• ischiocavernosus

• retractor penis

What muscle covers the pelvic portion of the urethra

urethralis

what muscle covers the bulbourethral glands

bulboglandularis

what muscle makes up the corpus spongiosa penis

bulbospongiosus

what muscle covers the crus of the penis

ishiocavernosus

what penis muscle is paired and lies on the midline

retractor penis muscle

what 3 arteries supply blood to the penis

• internal pudendal

• obturator

• external pudendal

What artery results from the anastomosis of the internal/external pudendal, and obturator artery’s in the male horse

dorsal artery of the penis

List the pathway of blood from the internal pudendal artery to the dorsal artery of the penis

1. internal pudendal

2. artery of the penis

3. artery of the bulb of the penis

4. dorsal artery of the penis

List the pathway of blood from the obturator artery to the dorsal artery of the penis

1. obturator artery

2. middle artery of the penis

3. deep artery of the penis

4. dorsal artery of the penis

List the pathway of blood from the external pudendal artery to the dorsal artery of the penis

1. external pudendal artery

2. cranial artery of the penis

3. dorsal artery of the penis

The venous return of the penis is controlled by the __________

large plexus

the sympathetic innervation of the penis is the __________ nerve

hypogastric nerve

the parasympathetic innervation of the penis is the _______ nerve

pelvic

The dorsal nerve of the penis is a continuation of the ___________ nerve

pudendal

the nerve that is sensory to the scrotum is the __________ nerve

genitofemoral

the testicular nerve originates from the ___________

caudal mesenteric ganglion

What lymph node drains the penis and scrotum

superficial inguinal lymph nodes

what lymph node drains the testes and epididymis

medial iliac lymph node

what lymph node drains the stifle

lateral iliac lymph node