lecture 17: nerves and circulation Flashcards
what vertbrea make up the lumbosacral pelxus
(t12) L1-S4
what makes up the lumbar plexus
(t12) l1-l4
what makes up the sacral plexus
l4/l5-s4
what are the brances of the first lumbar nerve
illihypogastric
illinguinal
genitofemoral
what branch makes up the illiinguinal anf illihypogastric
l1
what branch makes up the genitofemroal (l1 and l2)
.
true or false, the lumbosacral pelxus gets no contrtibution from theoraic
false, T12 contribution
true or false, femoral nerve says anterior
true
what are the cotnibitions for femoral nerve
l2 l3 and l4
what are the contributions for obturator nerve
l2 l3 and l4
obturator nerve supplies the …
adductors
what are the main nerves of the lumbosacral plexus
illiohypogastric illinguinal genitofemoral lateral femoral cutaneous femoral (saphenous) obturator
true or false: saphenous is not a sensory nerve
false, it is sensory
is saphenous medial or lateral
medial
what are the total contributions for sacral plexus
l4/l5 to s4
what are the nerves taht make up the sacral plexus
superior gluteal nerve
inferior gluteal nerve
scianic nerve
>common fibular (superfical, deep and lateral sural)
>tibial nerve (medial and lateral plantar, lateral sural)
sural
what are the contributions for superior gluteal nerve
l4, l5, s1
WHAT ARE THE contributions for the inferior gluteal nerve
l5,s1 and s2
what are the contributions of sciatic
l4-s3
does sciatic stay posterior or anterior
posterior
what are the contributions for tibial L
l4 to s3
whatt does sciatic split into
tibial and common peroneal
what does tibial innervate
posterior leg and under the foot
what does tibial nerve split to
medial and lateral plantar
medial sural cutaneous
what is the contribitions for common fibular
l4-s2
what does common peronial split into
superficial and deep
lateral cuteamous
does common fibilar supply posterior or anterior
anterior
what does the superficial fibular innervate
fibular msucles (brev and longus)
what do the deep fibiular innervate
Anterior leg
true ro false: the superficial and deep fibular stay anteriorly
true
is the sural nerve inenrvation or sensory
sensory
arterioes
abdominal artery
common illiac
internal and external illiac
femoral (deep femoral and medial.lateral femoral circumflex)
popliteal (genicular)
anterior tibial (dorsalis pedis)
posterior tibial (fibular and then medial and lateral and deep arches)
where is common illiac arteries
L4
where are external illiac arteries
L5/S1
what comes off the external illiac
femoral artery
what are the branches of the femoral artery
deep femoral
lateral and medial femoral circumflex
perforating arteries
what is the fucntion of the perforarting arteries
off deep femoral and will go through the adductor and will supply the posterior thigh
where do the medial and lateral femoral circumflexes go>
around neck of the femur
when does it become femoral
past inguinal line
what does the femoral artery turn into
popliteal
what bracnhes off the popliteal artery
genicualr arteriors
posterior tibial
anterior tibial
where does the femoral artery pass
adductor canal
where does the anterior tibial artery perforate
the interosseous membrane
what does the posterior tibial splt into
fibular
medial and lateral plantar
into plantar arch
what does anterior tibial artery split into
dorsalis pedis
dorsal arch
where does the saphenous go and insert
starts and stays medial and dumps into femoral
what is the saphenous opening
allows saphernous vein to exit the fascia amnd supply medially
what is the cribriform fascia
fascia that closes the saphenous opening and holds the saphenous vein
are great and small saphenous venous commitantes
no
what are the veins
inferior vena cava
common illiac vein
internal and external illiac vein
femoral vein (great saphenous and deep femoral)
popliteal vein (small saphenous)
>posterior tibial (fibular and medial and lateral p[lantar)
>anterior tibial (dorsalis pedis)
is small saphenous medial or lateral
lateral
does the small saphenous go all the way down
no it is lateral and stops near knee
