vessels of the lower limb

Question 1

describe the flow chart from dorsal and ventral horn to nerves

Answer 1

ventral and lateral horn to ventral and lateral rootlets, to ventral and lateral roots, to spinal nerve, to dorsal and ventral rami. ventral rami then divides anteriorly and posteriorly

Question 2

where do the dorsal rami supply

Answer 2

the deeper back muscles, joiunts and skin of the back

Question 3

why are the dorsal rami smaller than the ventral rami

Answer 3

because the rami do more, like they are supplying larger area and go further

Question 4

what plexsus do the cervical nerves form

Answer 4

the cervical plexsus from C1-C4 and the brachial plexsus from C5-T1

Question 5

what plexuses do the thoracic spinal nerves form

Answer 5

the intercostal nerves from T1-T11

Question 6

what plexus do the lumbar nerves form

Answer 6

lumbar plexus L1-L4

Question 7

what plexus do the sacral nerves form

Answer 7

sacral plexus L4-S4

Question 8

what plexus do the coccygeal spinal nerves form

Answer 8

the coccygeal plexus S4-Co1

Question 9

what connects the two plexus of the lumbosacral plexus

Answer 9

the lumbosacral trunk, from L4-5

Question 10

what are the 5 key nerves of the lumbosacral plexus and their origins

Answer 10

femoral nerve anterior L2-L4
obturator nerve posterior L2-L4
greater gluteal nerve L4-S1
lesser gluteal nerve L5-S2
sciatic nerve L4-S3

Question 11

what are the two nerves within the sciatic nerve and their originate

Answer 11

the tibial nerve L4-S3
common fibular nerve L4-S2

Question 12

what are the divisions of the common fibular nerve and where do they innervate

Answer 12

deep fibular nerve is the anterior compartment of the leg
superficial fibular nerve is the lateral compartment of the leg

Question 13

what do each of the primary nerves innervate

Answer 13

femoral nerve is anterior thigh
obturator nerve is medial thigh
superior gluteal nerve is the gluteus medias and minimus and the TFL
inferior gluteal nerve is the gluteal Maximus
the tibial nerve is posterior thigh and posterior leg
anterior and lateral leg is the common fibular nerve

Question 14

what is the supply to the iliopsoas muscles

Answer 14

the ventral rami of the L1, L2 and L3 is the psoas major
iliacus is the femoral nerve

Question 15

despite being on the medial thigh what miscle does the femoral nerve supply

Answer 15

the pectineus

Question 16

what innervates the hamstrings part of the adductor magnus

Answer 16

the tibial nerve

Question 17

why do we give intramuscular bum injections in the upper lateral quadrant of the hip

Answer 17

so we can avoid damaging the sciatic nerve

Question 18

on the sole of the foot what does the tibial nerve divide into

Answer 18

the medial and lateral plantar nerves

Question 19

where does the common fibular nerve divide and what into

Answer 19

at the anterior aspect of tje neck od=f the fibular
dividing into deep and superficial fibular nerves

Question 20

what supplies the short head of the biceps femoris

Answer 20

the common fibular nerve

Question 21

descrobe the artery flow chart of the lower limb

Answer 21

aorta - thoracic aorta - abdominal aorta - common iliac artery - external iliac artery - femoral artery - popliteal artery - anterior and posteror tibial artery - dorsalis pedis and the lateral and medial plantar artery.

Question 22

where does tthe aorta bifricate and what into

Answer 22

bifrucates into the left and righ common iliac arteries at L4

Question 23

where does the common iliac arterties divide

Answer 23

into the internal and external iliacs at the sacrum

Question 24

what are the three branches of the internal iliac artery in the true pelvis

Answer 24

the superior gluteal artery, unferior gluteal and the obturator artery

Question 25

where does the femoral artery become the polital artery

Answer 25

at the popliteal fossa

Question 26

where does the popliteal artery divide and into what

Answer 26

divides at the neck of the fibula to become anterior and posterior tibial artery

Question 27

what divides intto the fibular arteyr

Answer 27

the posterior tibial artery

Question 28

what passes through the adductor hitaus,

Answer 28

the femoral artery

Question 29

the anteiror tibial artery crosses what to become what

Answer 29

extenor retinaculum to become the dorsialis pedis

Question 30

what does the posterior tibial artery to become what

Answer 30

beneth the flexor retinaculum to become the medial and lateral plantar arteries

Question 31

whats the blood supplies to the thigh compartments

Answer 31

anteriorly ts the deep femoral artery, posteriorly its the deep femoral artery
medially its the deep femoral artery and the obturator

Question 32

whats the blood supplies to the leg compartments

Answer 32

anterior is the anterior tibial
posterior is the posterior tibial artery
laterally is the fibular peroneal artery.