Test on the anatomy of male abdominal and pelvic nerves

1. Which branch of the genitofemoral nerve (n. genitofemoralis) in men passes through the inguinal canal as part of the spermatic cord?

• R. femoralis

  The genital branch (r. genitalis) penetrates the inguinal canal through the deep ring, travels as part of the spermatic cord and innervates the m. cremaster and testicular membranes.

• R. genitalis

  The genital branch (r. genitalis) penetrates the inguinal canal through the deep ring, travels as part of the spermatic cord and innervates the m. cremaster and testicular membranes.

• N. ilioinguinalis

  The genital branch (r. genitalis) penetrates the inguinal canal through the deep ring, travels as part of the spermatic cord and innervates the m. cremaster and testicular membranes.

• N. scrotalis anterior

  The genital branch (r. genitalis) penetrates the inguinal canal through the deep ring, travels as part of the spermatic cord and innervates the m. cremaster and testicular membranes.

• I find it difficult to answer

  The genital branch (r. genitalis) penetrates the inguinal canal through the deep ring, travels as part of the spermatic cord and innervates the m. cremaster and testicular membranes.

2. Which autonomic plexus is the primary source of innervation for the prostate and seminal vesicles?

• Celiac plexus

  The inferior hypogastric (pelvic) plexus gives rise to derivative plexuses, including the prostatic plexus and deferential plexus, which innervate the organs of the male pelvis.

• Superior hypogastric plexus

  The inferior hypogastric (pelvic) plexus gives rise to derivative plexuses, including the prostatic plexus and deferential plexus, which innervate the organs of the male pelvis.

• Inferior mesenteric plexus

  The inferior hypogastric (pelvic) plexus gives rise to derivative plexuses, including the prostatic plexus and deferential plexus, which innervate the organs of the male pelvis.

• Inferior hypogastric plexus

  The inferior hypogastric (pelvic) plexus gives rise to derivative plexuses, including the prostatic plexus and deferential plexus, which innervate the organs of the male pelvis.

• I find it difficult to answer

  The inferior hypogastric (pelvic) plexus gives rise to derivative plexuses, including the prostatic plexus and deferential plexus, which innervate the organs of the male pelvis.

3. Through which anatomical formation does the pudendal nerve (n. pudendus) pass on the lateral wall of the ischioanal fossa?

• Canalis pudendalis (Alcock's canal)

  The pudendal nerve along with the internal pudendal vessels passes in the pudendal canal (Alcock's canal), which is formed by the splitting of the fascia of the internal obturator muscle.

• Canalis adductorius

  The pudendal nerve along with the internal pudendal vessels passes in the pudendal canal (Alcock's canal), which is formed by the splitting of the fascia of the internal obturator muscle.

• Canalis obturatorius

  The pudendal nerve along with the internal pudendal vessels passes in the pudendal canal (Alcock's canal), which is formed by the splitting of the fascia of the internal obturator muscle.

• Lacuna vasorum

  The pudendal nerve along with the internal pudendal vessels passes in the pudendal canal (Alcock's canal), which is formed by the splitting of the fascia of the internal obturator muscle.

• I find it difficult to answer

  The pudendal nerve along with the internal pudendal vessels passes in the pudendal canal (Alcock's canal), which is formed by the splitting of the fascia of the internal obturator muscle.

4. Which nerves provide sensory innervation to the anterior surface of the scrotum in men?

• Nn. scrotales posteriores from n. pudendus

  The anterior scrotal nerves (nn. scrotales anteriores) are the terminal branches of the ilioinguinal nerve (n. ilioinguinalis).

• Nn. scrotales anteriores from n. ilioinguinalis

  The anterior scrotal nerves (nn. scrotales anteriores) are the terminal branches of the ilioinguinal nerve (n. ilioinguinalis).

• Rr. perineales from n. posterior femoral cutaneous nerve

  The anterior scrotal nerves (nn. scrotales anteriores) are the terminal branches of the ilioinguinal nerve (n. ilioinguinalis).

• N. iliohypogastricus

  The anterior scrotal nerves (nn. scrotales anteriores) are the terminal branches of the ilioinguinal nerve (n. ilioinguinalis).

• I find it difficult to answer

  The anterior scrotal nerves (nn. scrotales anteriores) are the terminal branches of the ilioinguinal nerve (n. ilioinguinalis).

5. From which nerve do the posterior scrotal nerves (nn. scrotales posteriores) arise?

• N. pudendus

  The posterior scrotal nerves originate from the perineal branches of the pudendal nerve (n. pudendus) and innervate the posterior surface of the scrotum.

• N. ilioinguinalis

  The posterior scrotal nerves originate from the perineal branches of the pudendal nerve (n. pudendus) and innervate the posterior surface of the scrotum.

• N. genitofemoralis

  The posterior scrotal nerves originate from the perineal branches of the pudendal nerve (n. pudendus) and innervate the posterior surface of the scrotum.

• N. ischiadicus

  The posterior scrotal nerves originate from the perineal branches of the pudendal nerve (n. pudendus) and innervate the posterior surface of the scrotum.

• I find it difficult to answer

  The posterior scrotal nerves originate from the perineal branches of the pudendal nerve (n. pudendus) and innervate the posterior surface of the scrotum.

6. On which surface of the stomach are the branches of the anterior vagal trunk (truncus vagalis anterior) primarily distributed?

• On the posterior wall

  The anterior vagal trunk, as a continuation of the left vagus nerve, lies on the anterior wall of the stomach along the lesser curvature.

• Along the greater curvature

  The anterior vagal trunk, as a continuation of the left vagus nerve, lies on the anterior wall of the stomach along the lesser curvature.

• Only in the pyloric region

  The anterior vagal trunk, as a continuation of the left vagus nerve, lies on the anterior wall of the stomach along the lesser curvature.

• On the anterior wall and lesser curvature

  The anterior vagal trunk, as a continuation of the left vagus nerve, lies on the anterior wall of the stomach along the lesser curvature.

• I find it difficult to answer

  The anterior vagal trunk, as a continuation of the left vagus nerve, lies on the anterior wall of the stomach along the lesser curvature.

7. Where are the lumbar ganglia of the sympathetic trunk (ganglia lumbalia) topographically located?

• In the thickness of the m. psoas major

  The lumbar sympathetic ganglia lie retroperitoneally on the anterolateral surface of the vertebral bodies, medial to the border of the psoas major muscle.

• On the posterior surface of the m. quadratus lumborum

  The lumbar sympathetic ganglia lie retroperitoneally on the anterolateral surface of the vertebral bodies, medial to the border of the psoas major muscle.

• Between the crura of the diaphragm

  The lumbar sympathetic ganglia lie retroperitoneally on the anterolateral surface of the vertebral bodies, medial to the border of the psoas major muscle.

• On the anterolateral surface of the bodies of the lumbar vertebrae medial to the m. psoas major

  The lumbar sympathetic ganglia lie retroperitoneally on the anterolateral surface of the vertebral bodies, medial to the border of the psoas major muscle.

• I find it difficult to answer

  The lumbar sympathetic ganglia lie retroperitoneally on the anterolateral surface of the vertebral bodies, medial to the border of the psoas major muscle.

8. From which segments of the spinal cord do the preganglionic fibers that form the greater splanchnic nerve (n. splanchnicus major) originate?

• Th5 - Th9

  The greater splanchnic nerve is formed from the branches of the 5th to 9th (sometimes 10th) thoracic sympathetic trunk ganglia.

• Th1 - Th4

  The greater splanchnic nerve is formed from the branches of the 5th to 9th (sometimes 10th) thoracic sympathetic trunk ganglia.

• Th10 - Th11

  The greater splanchnic nerve is formed from the branches of the 5th to 9th (sometimes 10th) thoracic sympathetic trunk ganglia.

• L1 - L2

  The greater splanchnic nerve is formed from the branches of the 5th to 9th (sometimes 10th) thoracic sympathetic trunk ganglia.

• I find it difficult to answer

  The greater splanchnic nerve is formed from the branches of the 5th to 9th (sometimes 10th) thoracic sympathetic trunk ganglia.

9. What anatomical structures primarily form the afferent pathways (roots) of the celiac plexus (plexus celiacus)?

• Nn. splanchnici pelvici and truncus sympathicus

  The celiac plexus is formed by the greater and lesser splanchnic nerves (sympathetic) and branches of the vagal trunks (parasympathetic).

• Nn. splanchnici major et minor and trunci vagales

  The celiac plexus is formed by the greater and lesser splanchnic nerves (sympathetic) and branches of the vagal trunks (parasympathetic).

• N. phrenicus and n. intercostalis

  The celiac plexus is formed by the greater and lesser splanchnic nerves (sympathetic) and branches of the vagal trunks (parasympathetic).

• N. pudendus and n. ischiadicus

  The celiac plexus is formed by the greater and lesser splanchnic nerves (sympathetic) and branches of the vagal trunks (parasympathetic).

• I find it difficult to answer

  The celiac plexus is formed by the greater and lesser splanchnic nerves (sympathetic) and branches of the vagal trunks (parasympathetic).

10. Through which foramen does the obturator nerve (n. obturatorius) exit the pelvic cavity to the thigh?

• Foramen ischiadicum majus

  The obturator nerve leaves the lesser pelvic cavity, passing through the obturator canal along with the eponymous vessels.

• Canalis obturatorius

  The obturator nerve leaves the lesser pelvic cavity, passing through the obturator canal along with the eponymous vessels.

• Foramen ischiadicum minus

  The obturator nerve leaves the lesser pelvic cavity, passing through the obturator canal along with the eponymous vessels.

• Lacuna musculorum

  The obturator nerve leaves the lesser pelvic cavity, passing through the obturator canal along with the eponymous vessels.

• I find it difficult to answer

  The obturator nerve leaves the lesser pelvic cavity, passing through the obturator canal along with the eponymous vessels.

11. What muscle of the anterior abdominal wall is pierced by the iliohypogastric nerve (n. iliohypogastricus) to exit into the subcutaneous tissue?

• M. rectus abdominis

  The iliohypogastric nerve pierces the aponeurosis of the external oblique muscle of the abdomen above the superficial inguinal ring.

• M. transversus abdominis

  The iliohypogastric nerve pierces the aponeurosis of the external oblique muscle of the abdomen above the superficial inguinal ring.

• M. obliquus internus abdominis

  The iliohypogastric nerve pierces the aponeurosis of the external oblique muscle of the abdomen above the superficial inguinal ring.

• M. obliquus externus abdominis

  The iliohypogastric nerve pierces the aponeurosis of the external oblique muscle of the abdomen above the superficial inguinal ring.

• I find it difficult to answer

  The iliohypogastric nerve pierces the aponeurosis of the external oblique muscle of the abdomen above the superficial inguinal ring.

12. What is the main source of parasympathetic innervation for the corpora cavernosa of the penis (vasodilator fibers)?

• Truncus vagalis posterior

  The erectile function is ensured by parasympathetic fibers (nn. cavernosi penis), originating from the pelvic splanchnic nerves (nn. splanchnici pelvici, S2-S4).

• Nn. splanchnici sacrales

  The erectile function is ensured by parasympathetic fibers (nn. cavernosi penis), originating from the pelvic splanchnic nerves (nn. splanchnici pelvici, S2-S4).

• Nn. splanchnici pelvici

  The erectile function is ensured by parasympathetic fibers (nn. cavernosi penis), originating from the pelvic splanchnic nerves (nn. splanchnici pelvici, S2-S4).

• N. pudendus

  The erectile function is ensured by parasympathetic fibers (nn. cavernosi penis), originating from the pelvic splanchnic nerves (nn. splanchnici pelvici, S2-S4).

• I find it difficult to answer

  The erectile function is ensured by parasympathetic fibers (nn. cavernosi penis), originating from the pelvic splanchnic nerves (nn. splanchnici pelvici, S2-S4).

13. What is the name of the nerve cord connecting the superior hypogastric plexus (plexus hypogastricus superior) with the inferior hypogastric plexus (plexus hypogastricus inferior)?

• N. hypogastricus

  The right and left hypogastric nerves (nn. hypogastrici) descend into the pelvic cavity, connecting the superior and inferior hypogastric plexuses.

• N. splanchnicus lumbalis

  The right and left hypogastric nerves (nn. hypogastrici) descend into the pelvic cavity, connecting the superior and inferior hypogastric plexuses.

• N. presacralis

  The right and left hypogastric nerves (nn. hypogastrici) descend into the pelvic cavity, connecting the superior and inferior hypogastric plexuses.

• Sympathetic trunk

  The right and left hypogastric nerves (nn. hypogastrici) descend into the pelvic cavity, connecting the superior and inferior hypogastric plexuses.

• I find it difficult to answer

  The right and left hypogastric nerves (nn. hypogastrici) descend into the pelvic cavity, connecting the superior and inferior hypogastric plexuses.

14. What nerve is the continuation of the dorsal nerve of the penis (n. dorsalis penis)?

• N. ilioinguinalis

  The dorsal nerve of the penis is the terminal branch of the pudendal nerve, passing below the pubic symphysis to the dorsum of the penis.

• N. genitofemoralis

  The dorsal nerve of the penis is the terminal branch of the pudendal nerve, passing below the pubic symphysis to the dorsum of the penis.

• N. pudendus

  The dorsal nerve of the penis is the terminal branch of the pudendal nerve, passing below the pubic symphysis to the dorsum of the penis.

• N. ischiadicus

  The dorsal nerve of the penis is the terminal branch of the pudendal nerve, passing below the pubic symphysis to the dorsum of the penis.

• I find it difficult to answer

  The dorsal nerve of the penis is the terminal branch of the pudendal nerve, passing below the pubic symphysis to the dorsum of the penis.

15. Near which artery are the aorticorenal ganglia (ganglia aortorenalia) located?

• At the splenic hilum

  The aorticorenal ganglia (part of the celiac plexus) are located at the origin of the renal arteries from the abdominal aorta.

• At the origin of the a. renalis from the aorta

  The aorticorenal ganglia (part of the celiac plexus) are located at the origin of the renal arteries from the abdominal aorta.

• At the aortic bifurcation

  The aorticorenal ganglia (part of the celiac plexus) are located at the origin of the renal arteries from the abdominal aorta.

• Around the inferior mesenteric artery

  The aorticorenal ganglia (part of the celiac plexus) are located at the origin of the renal arteries from the abdominal aorta.

• I find it difficult to answer

  The aorticorenal ganglia (part of the celiac plexus) are located at the origin of the renal arteries from the abdominal aorta.

16. Which plexus branches accompany the a. rectalis superior for the innervation of the upper part of the rectum?

• Celiac plexus

  The superior rectal plexus (plexus rectalis superior) is a direct continuation of the inferior mesenteric plexus.

• Inferior hypogastric plexus

  The superior rectal plexus (plexus rectalis superior) is a direct continuation of the inferior mesenteric plexus.

• Inferior mesenteric plexus

  The superior rectal plexus (plexus rectalis superior) is a direct continuation of the inferior mesenteric plexus.

• Renal plexus

  The superior rectal plexus (plexus rectalis superior) is a direct continuation of the inferior mesenteric plexus.

• I find it difficult to answer

  The superior rectal plexus (plexus rectalis superior) is a direct continuation of the inferior mesenteric plexus.

17. Under which ligament does the lateral cutaneous nerve of the thigh (n. cutaneus femoris lateralis) emerge on the thigh from the abdominal cavity?

• Lig lacunare

  The nerve emerges on the thigh under the inguinal ligament (lig. inguinale) near the anterior superior iliac spine.

• Lig pectineum

  The nerve emerges on the thigh under the inguinal ligament (lig. inguinale) near the anterior superior iliac spine.

• Lig sacrospinale

  The nerve emerges on the thigh under the inguinal ligament (lig. inguinale) near the anterior superior iliac spine.

• Lig inguinale

  The nerve emerges on the thigh under the inguinal ligament (lig. inguinale) near the anterior superior iliac spine.

• I find it difficult to answer

  The nerve emerges on the thigh under the inguinal ligament (lig. inguinale) near the anterior superior iliac spine.

18. Which nerve structures form the prostatic plexus (plexus prostaticus) in men?

• Branches of the inferior hypogastric plexus

  The prostatic plexus is formed by branches of the inferior hypogastric (pelvic) plexus and innervates the prostate gland.

• Branches of the superior mesenteric plexus

  The prostatic plexus is formed by branches of the inferior hypogastric (pelvic) plexus and innervates the prostate gland.

• Branches of the celiac plexus

  The prostatic plexus is formed by branches of the inferior hypogastric (pelvic) plexus and innervates the prostate gland.

• Somatic branches of the pudendal nerve

  The prostatic plexus is formed by branches of the inferior hypogastric (pelvic) plexus and innervates the prostate gland.

• I find it difficult to answer

  The prostatic plexus is formed by branches of the inferior hypogastric (pelvic) plexus and innervates the prostate gland.

19. Which trunk, involved in the formation of the sacral plexus, descends into the pelvic cavity along the anterior surface of the sacroiliac joint?

• Truncus vagalis anterior

  The lumbosacral trunk (L4-L5) descends into the small pelvis, crossing the linea terminalis, and joins the sacral plexus.

• Sympathetic trunk

  The lumbosacral trunk (L4-L5) descends into the small pelvis, crossing the linea terminalis, and joins the sacral plexus.

• Truncus lumbosacralis

  The lumbosacral trunk (L4-L5) descends into the small pelvis, crossing the linea terminalis, and joins the sacral plexus.

• Truncus celiacus

  The lumbosacral trunk (L4-L5) descends into the small pelvis, crossing the linea terminalis, and joins the sacral plexus.

• I find it difficult to answer

  The lumbosacral trunk (L4-L5) descends into the small pelvis, crossing the linea terminalis, and joins the sacral plexus.

20. Which autonomic plexus accompanies the ductus deferens (vas deferens) within the spermatic cord?

• Plexus prostaticus

  The plexus of the ductus deferens (plexus deferentialis), a derivative of the inferior hypogastric plexus, accompanies the duct throughout its course.

• Plexus vesicalis

  The plexus of the ductus deferens (plexus deferentialis), a derivative of the inferior hypogastric plexus, accompanies the duct throughout its course.

• Plexus deferentialis

  The plexus of the ductus deferens (plexus deferentialis), a derivative of the inferior hypogastric plexus, accompanies the duct throughout its course.

• Plexus rectalis medius

  The plexus of the ductus deferens (plexus deferentialis), a derivative of the inferior hypogastric plexus, accompanies the duct throughout its course.

• I find it difficult to answer

  The plexus of the ductus deferens (plexus deferentialis), a derivative of the inferior hypogastric plexus, accompanies the duct throughout its course.