Final Exam: Nerve/Artery paths

Question 1

What does the genitofemoral supply and where is it found?

Answer 1

• genital portion supplies the cremastor muscle, scrotum, and labia majora
• femoral portion supplies skin over lateral part of femoral triangle

Question 2

Sciatic nerve divides into what two branches?

Answer 2

common fibular nerve and tibial nerve

Question 3

What muscle is innervated by common fibular?

Answer 3

short head of the biceps femoris

Question 4

What does common fibular break off into?

Answer 4

superficial fibular nerve (lateral) and deep fibular nerve (anterior)

Question 5

Where can you first find the femoral nerve?

Answer 5

lateral to psoas major

Question 6

What nerves are medial and lateral to psoas major?

Answer 6

medial = obturator
lateral = femoral

Question 7

What does obturator nerve divide into?

Answer 7

anterior and posterior obturator nerves

Question 8

Does the femoral nerve pass under or over inguinal ligament?

Answer 8

under

Question 9

The saphenous nerve is a branch of what?

Answer 9

femoral nerve

Question 10

Where does the sciatic divide? What does it divide into?

Answer 10

divides into tibial nerve and common fibular nerve usually in the popliteal fossa

Question 11

Medial and lateral plantar nerves are branches off of what?

Answer 11

tibial nerve

Question 12

What innervates the lateral lower leg?

Answer 12

superficial fibular nerve

Question 13

What innervates the anterior lower leg?

Answer 13

deep fibular nerve

Question 14

Branches from what two nerves make up the sural nerve?

Answer 14

common fibular and tibial nerves

Question 15

What does the sural nerve innervate?

Answer 15

skin to posterior and lateral side of leg and lateral foot

Question 16

Medial and lateral plantar nerves are branches of what nerve?

Answer 16

tibial nerve

Question 17

What does the superior gluteal nerve innervate?

Answer 17

gluteus medius, minimus, and tensor fascia latae

Question 18

What are the branches off of the celiac trunk?

Answer 18

common hepatic, left gastric, and splenic

Question 19

What supplies blood to the midgut?

Answer 19

superior mesenteric a.

Question 20

What does the splenic artery supply?

Answer 20

spleen, body of pancreas, greater and lesser curvatures of stomach

Question 21

What supplies blood to the liver and gallbladder?

Answer 21

hepatic artery (which bifurcates into right and left)

Question 22

What nerve stimulates the liver to produce bile?

Answer 22

vagus (because vagus does foregut, and liver is in foregut)

Question 23

What is the primary artery that supplies the stomach?

Answer 23

celiac a.

Question 24

T/F: The suprarenal arteries give blood supply to the kidneys.

Answer 24

false, they do adrenal gland while the renal arteries do the kidneys

Question 25

Discuss the path of the sciatic down to its ends.

Answer 25

1) sciatic -> common fibular and tibial nerves 2) common fibular -> superficial and deep fibular nerves 3) tibial -> medial and lateral plantar nerves

Question 26

What does the femoral artery branch off of?

Answer 26

external iliac

Question 27

What is the relationship of the femoral nerve, artery, and vein in the cadaver?

Answer 27

lateral to medial: nerve -> artery -> vein

Question 28

What does the femoral nerve branch into?

Answer 28

saphenous nerve and cutaneous branches

Question 29

Medial and lateral plantar ARTERIES are branches of what?

Answer 29

posterior tibial artery

Question 30

What artery do the medial and lateral circumflexes come off of?

Answer 30

deep femoral artery

Question 31

What does anterior tibial nerve become in the foot?

Answer 31

dorsalis pedis a.

Question 32

What innervates the anterior lower leg?

Answer 32

deep fibular nerve

Question 33

Discuss blood flow starting with common iliac.

Answer 33

1) common iliac -> external and internal iliac 2) external iliac -> femoral artery 3) femoral artery -> deep femoral a. and femoral a. 4) deep femoral -> medial/lateral circumflex femoral artery -> popliteal a. 5) popliteal -> fibular a. and tibial a. 6) tibial -> ant. and post. tibial a. 7) ant. tibial a. -> dorsal pedis a. post. tibial a. -> med/lat plantar a.

Question 34

What artery gives off genicular branches that anastemose to supply the knee?

Answer 34

popliteal a.

Question 35

Where does the external iliac artery become the femoral artery?

Answer 35

at the inguinal ligament

Question 36

What supplies the skin to the anterior and lateral thigh?

Answer 36

lateral cutaneous nerve to thigh (L2-3)

Question 37

What muscle does ilioinguinal and iliohypogastric pierce?

Answer 37

transverse abdominus

Question 38

Do ilioinguinal and iliohypogastric run anterior or posterior to quadratus lumborum?

Answer 38

anterior

Question 39

Pelvic splanchnic innervates what part of the gut?

Answer 39

hindgut (vagus does the fore and mid)

Question 40

What veins form the portal vein?

Answer 40

superior mesenteric and splenic veins

Question 41

Anterior lower leg is given blood supply by what?

Answer 41

anterior tibial a.

Question 42

Posterior lower leg is given blood supply by what?

Answer 42

posterior tibial a.

Question 43

Lateral lower leg is given blood supply by what?

Answer 43

fibular a.

Question 44

T/F: Fibular artery is a branch of anterior tibial a.

Answer 44

false, it's posterior tibial a.