A6: P

Question 1

Why do the testes and ovaries drain to the lumbar (para-aortic) nodes rather than pelvic nodes? A. Because they are located in the scrotum and labia majora. B. Due to their embryological origin in the posterior abdominal wall. C. Because they are supplied by the internal iliac artery. D. Because they are part of the external genitalia.

Answer 1

B

Question 2

Most pelvic viscera follow their arterial supply and drain primarily into the __________ lymph nodes.

Answer 2

Internal iliac

Question 3

Which of the following organs primarily drain into the internal iliac lymph nodes? A. Prostate B. Cervix C. Ovaries D. Upper vagina

Answer 3

A, B, D

Question 4

Explain the dual lymphatic drainage pattern of the rectum.

Answer 4

The rectum has a dual abdominal–pelvic drainage pattern. The upper part drains to pararectal nodes and then to inferior mesenteric nodes (hindgut pattern)

Question 5

Which interpelvic lymph node group receives lymph from both the internal and external iliac nodes? A. Sacral nodes B. Common iliac nodes C. Lumbar nodes D. Pararectal nodes

Answer 5

B

Question 6

The __________ lymph nodes are located on the anterior surface of the sacrum and drain posterior pelvic organs.

Answer 6

Sacral

Question 7

Which structures drain into the external iliac lymph nodes? A. Urinary bladder (superior surface) B. Lower anterior abdominal wall C. Body of the uterus D. Testes

Answer 7

A, B, C

Question 8

What are the clinical implications of the multiple drainage pathways found in the pelvis?

Answer 8

Multiple drainage pathways lead to variable metastatic spread in pelvic malignancies. This variability is particularly important for identifying sentinel nodes in cervical

Question 9

Lymph from the scrotum (skin and superficial tissues) drains to which group of nodes? A. Lumbar nodes B. Deep inguinal nodes C. Superficial inguinal nodes D. Internal iliac nodes

Answer 9

C

Question 10

The glans penis drains primarily to the deep inguinal nodes

Answer 10

specifically __________ node.

Question 11

Identify the primary lymph nodes for the prostate. A. Internal iliac nodes B. Sacral nodes C. External iliac nodes D. Superficial inguinal nodes

Answer 11

A, B

Question 12

Describe the lymphatic pathway for the testes starting from the primary nodes.

Answer 12

Lymph from the testes drains to the lumbar (para-aortic) nodes located at the level of the renal vessels. From there

Question 13

Which node group is the primary destination for the epididymis and ductus deferens? A. Internal iliac nodes B. External iliac nodes C. Sacral nodes D. Superficial inguinal nodes

Answer 13

B

Question 14

In the female

Answer 14

the ovaries drain to the __________ nodes.

Question 15

The uterine tubes can drain into which of the following node groups? A. Lumbar nodes B. Internal iliac nodes C. Superficial inguinal nodes D. Sacral nodes

Answer 15

A, B

Question 16

Describe the unique three-way drainage of the uterine fundus.

Answer 16

The fundus drains primarily to the lumbar nodes via the ovarian vessels. It can also drain to the superficial inguinal nodes via the round ligament of the uterus.

Question 17

The lower part of the vagina drains primarily to which nodes? A. Internal iliac nodes B. Sacral nodes C. Superficial inguinal nodes D. External iliac nodes

Answer 17

C

Question 18

The clitoris drains primarily to the __________ lymph nodes.

Answer 18

Deep inguinal

Question 19

Which parts of the female external genitalia drain to the superficial inguinal nodes? A. Labia majora B. Most of the labia minora C. Clitoris D. Lower part of the vagina

Answer 19

A, B, D

Question 20

Trace the flow of lymph from the cervix to the final drainage pathway.

Answer 20

Lymph from the cervix drains to the internal iliac and sacral nodes. It then moves to the common iliac nodes as secondary drainage before reaching the lumbar trunks.

Question 21

Lymph from the superior surface of the urinary bladder drains to: A. Internal iliac nodes B. External iliac nodes C. Sacral nodes D. Lumbar nodes

Answer 21

B

Question 22

The inferior surface and neck of the urinary bladder drain to the internal iliac and __________ nodes.

Answer 22

Sacral

Question 23

Which nodes receive lymph from the middle part of the rectum? A. Pararectal nodes B. Internal iliac nodes C. Common iliac nodes (secondary) D. Inferior mesenteric nodes

Answer 23

B, C

Question 24

Describe the watershed effect of the pectinate line in the anal canal.

Answer 24

Above the pectinate line

Question 25

The final drainage pathway for most pelvic organs (excluding the upper rectum and gonads) is the: A. Intestinal trunk B. Lumbar trunks C. Thoracic duct directly D. Right lymphatic duct

Answer 25

B

Question 26

The upper part of the rectum drains to pararectal nodes and then to __________ nodes.

Answer 26

Inferior mesenteric

Question 27

Which structures have their final drainage into the cisterna chyli via the intestinal trunk? A. Upper part of the rectum B. Testes C. Ovaries D. Foregut and Midgut (from previous sessions)

Answer 27

A, D

Question 28

Compare the drainage of the skin of the penis versus the glans penis.

Answer 28

The skin of the penis drains to the superficial inguinal nodes. In contrast

Question 29

The distal spongy urethra drains to: A. Superficial inguinal nodes B. Deep inguinal ± external iliac nodes C. Sacral nodes D. Lumbar nodes

Answer 29

B

Question 30

The body of the uterus primarily drains to the __________ nodes.

Answer 30

External iliac

Question 31

Secondary drainage for the seminal vesicles and prostate is provided by the: A. External iliac nodes B. Common iliac nodes C. Internal iliac nodes D. Sacral nodes

Answer 31

B

Question 32

Where might the anterior labia minora drain?

Answer 32

The anterior labia minora has variable drainage and may drain into either the deep inguinal nodes or the internal iliac nodes.

Question 33

Which node group is located along the branches of the internal iliac vessels? A. External iliac nodes B. Internal iliac nodes C. Sacral nodes D. Lumbar nodes

Answer 33

B

Question 34

The uterine tubes drain to lumbar nodes via the __________ vessels.

Answer 34

Ovarian

Question 35

Which of the following are interpelvic lymph node groups? A. Common iliac nodes B. External iliac nodes C. Internal iliac nodes D. Sacral nodes

Answer 35

A, B, C, D

Question 36

Outline the primary

Answer 36

secondary

Question 37

The lower part of the rectum may drain to internal iliac nodes or which other group due to anal canal overlap? A. Sacral nodes B. External iliac nodes C. Superficial inguinal nodes D. Inferior mesenteric nodes

Answer 37

C

Question 38

The final drainage pathway for the upper rectum is the __________ trunk.

Answer 38

Intestinal

Question 39

Which statements about the testes are correct? A. They drain to inguinal nodes. B. They drain to lumbar (para-aortic) nodes. C. Their drainage is based on embryological origin. D. Their primary nodes are at the level of the renal vessels.

Answer 39

B, C, D

Question 40

Summarize the drainage of the urinary bladder.

Answer 40

The superior surface drains to the external iliac nodes. The inferior surface and neck drain to the internal iliac and sacral nodes. All eventually reach the common iliac nodes and lumbar trunks.