Abdomen I (innervation and vasculature)

Question 1

What innervates the muscles and overlying skin of the anterolateral abdominal wall?

Answer 1

anterior rami of T7-11 intercostal nerves
subcostal nerve T12
iliohypogastric nerve (L1)
ilio-inguinal (L1) nerves (ant rami of lumbar spinal nerve)

Question 2

T/F the distribution of cutaneous branches of nerves that innervate the anterolateral abdominal wall follow dermatomes

Answer 2

T

Question 3

What is distribution of thoracoabdominal nerves?

Answer 3

muscles of the anterolateral abdominal wall and overlying skin

Question 4

what is the distribution of the 7-9th lateral cutaneous branches ?

Answer 4

skin of right and left hypochondriac regions

Question 5

what is the distribution of the subcostal nerve

Answer 5

muscles of anterolateral abdominal wall and overlying skin superior to the iliac crest and inferior to umbilicus

Question 6

what is the distribution of the iliohypogastric nerve

Answer 6

skin of overlying iliac crest, upper inguinal, and hypogastric regions, internal oblique and transversus abdominus muscles

Question 7

what is the distribution of the ilio-inguinal nerve

Answer 7

skin of the lower inguinal region, mons pubis, anterior scrotum or labium majus, adjacent medial thigh, and inferiormost internal oblique and transversus abdominus

Question 8

the ________ _________ arteries enter the rectal sheath to supply the superior portion of the rectus abdominis

Answer 8

superior epigastric

Question 9

the _______ __________ arteries are a continuation of the internal thoracic arteries that pierce the diaphragm

Answer 9

superior epigastric

Question 10

the ________ ___________ arteries supply the inferior portion of the rectus abdominis which anastomose with the superior epigastric arteries

Answer 10

inferior epigastric

Question 11

The ________ _________ arteries are a bracnh of the external iliac arteries

Answer 11

inferior epigastric

Question 12

What is the distribution of the musculophrenic arteries?

Answer 12

superficial and deep abdominal wall of the hypochondriac region, and the anterolateral diaphragm

Question 13

What is the distribution of the superior epigastric arteries

Answer 13

rectus abdominis muscles, superficial and deep abdominal wall of the epigastric and upper umbilical regions

Question 14

What is the distribution of the subcostal and 10th and 11th posterior intercostal arteries

Answer 14

superficial and deep abdominal wall of the lateral (lumbar or flank) region

Question 15

What is the distribution of the inferior epigastric arteries?

Answer 15

rectus abdominis muscle, deep abdominal wall of the pubic and inferior umbilical regions

Question 16

What is the distribution of the deep circumflex iliac arteries?

Answer 16

iliacus muscle and deep abdominal wall of the inguinal region, iliac fossa

Question 17

what is the distribution of the superficial circumflex iliac arteries?

Answer 17

superficial abdominal wall of the inguinal region and adjacent anterior thigh

Question 18

What is the distribution of the superficial epigastric arteries?

Answer 18

superficial abdominal wall of the pubic and inferior umbilical regions

Question 19

In addition to the inferior vena cava, the ______________ vein provides alternate venous return to the heart

Answer 19

thoracoepigastric vein

Question 20

the __________ vein connects the superficial epigastric vein of the femoral vein and lateral thoracic vein of the axillary vein

Answer 20

thoracoepigastric

Question 21

the superficial lymphatic vessels above the umbillicus drain into the _________ lymph nodes and vessels

Answer 21

axillary

Question 22

the superficial lymphatic vessels below the umbilicus drain into the ______ _____ lymph nodes

Answer 22

superficial inguinal

Question 23

What is the significance of the the thoracoepigastric vein?

Answer 23

allows blood to bypass the inferior vena cava

Question 24

the superficial epigastric vein basically connects the ________ vein and the _______ vein

Answer 24

femoral, axillary