Final Exam Flashcards
pelvic girdle
connects axial skeleton and lower limbs
- hip bone x2
- sacrum
- coccyx
innominate
3 fused bones
- ilium
- pubis
- ischium
ilium (medial)
- iliac crest
- iliac fossa
- auricular surface
- iliac tuberosity
- anterior and posterior spines (4)
- arculate line
- greater sciatic notch
ilium (lateral)
- iliac crest
- gluteal surface
- anterior and posterior spines (4)
- greater sciatic notch
***NO ILIAC FOSSA
ischium
- ischial spine
- lesser sciatic notch
- ischial tuberosity
- ischial ramus
pubis
- superior and inferior pubic rami
- body of pubis
- pectineal line (continues from arcuate)
- symphyseal surface (where left and right pubis articulate-medially)
shared features of ilium, ischium and pubis
- acetabulum
- obturator foramen
- ischiopubic ramus
- iliopectineal line
male vs. female pelvis girdle
male: subpubic angle is smaller (60-70 degress)
female: subpubic angle is larger (90-100 degrees)
sacrum
anterior:
1. sacral promontory
2. anterior sacral formina
3. sacral ala
posterior:
1. posterior sacral formina
2. sacral canal
3. sacral hiatus
lateral:
1. auricular surface (connects to AS on ilium)
coccyx
tailbone - inferior to the sacrum
pelvic inlet
borders:
1. anterior: pubic symphasis
2. posterior: sacral promontary and ala
3. lateral: iliopectineal line
pelvic outlet
borders:
1. anterior: pubic arch
2. posterior: coccyx
3. lateral: ischial tuberosity
true pelvis
inferior to pelvic inlet
- contains pelvic viscera
false pelvis
superior to pelvic inlet
- contains abdominal viscera
pubic symphysis joint
fibrocartilaginous joing between symphyseal surface of both pelvises
sacroiliac joint
joint between the auricular surfaces of the sacrum and ilium
sacroiliac ligament
attach sacrum and ilium
- supports trunk on lower limbs
sacrospinous ligament
attach sacrum to ischial spine
sacrotuberous ligament
attaches PSIS, sacrum and ischial tuberosity
inguinal ligaments
attaches ASIS to pubis
- doesn’t support sacroiliac joint
greater sciatic foramina
in greater sciatic foramen above sacrospinous ligament
lesser sciatic foramina
in lesser sciatic foramen below sacrospinous ligament and above sacrotuberous ligament
hip joint
synovial ball and socket joint
- stability>mobility
- flex, extend, add, ab, circumduction
acetabulum
- lunate surface
- acetabular labrum
acetabular labrum
cartilaginous rim on acetabulum to deepen socket for more stability
femoral head
sits in the acetabulum of hip
- contains fovea
ligamentum teres
ligament in fovea with blood vessel supply to femoral heads
supporting ligaments
- iliofemoral
- pubofemoral
- ischiofemoral
iliofemoral ligament
illium
- prevents hyperextension
- ‘Y’ ligament
pubofemoral ligament yes
pubis
- prevents excessive abduction
proximal femur
- head
- neck
- fovea
- greater trochanter
- trochanteric fossa
- lesser trochanter
- intertrochanteric creast
- intertrochanteric line
- gluteal tuberosity
pelvic diaphragm
- ischiococcygeus
- levator ani
ORIGIN of ischiococcygeus
sacrum (inferior end)
INSERTION of ischiococcygeus
ischial spine
ACTION of ischiococcygeus
supports pelvic viscera
Levator Ani
group of 3 muscles
ORIGIN of levator ani
- pubis
- superior pubic ramus
INSERTION of levator ani
- anococcygeal ligament
- coccyx
ACTION of levator ani
supports pelvic viscera
hiatuses
- anal hiatus (round)
- urogenital hiatus (longer)
***PASSAGE-WAY
function of the pelvic floor
- supports abdominal and pelvic viscera
- forms anal and urogenital hiatuses
- resists increases in intra-abdominal pressure
movements at the hip joint
- flexion & extension
- abduction and adduction
- lateral and medial rotation
lateral rotators
- piriformis
- obturator internus
- obturator externus
- gemellus superior
- gemellus inferior
- quadratus femoris
ORIGIN of piriformis
pelvic surface of the sacrum (inferior)
INSERTION of piriformis
apex of the greater trochanter of femur
ACTION of piriformis
- lateral rotation of hip joint
- abduction of hip joint
- extension of hip joint
sciatic nerve
largest nerve running down leg that passes through greater sciatic foramen
ORIGIN of sciatic nerve
lumbosacral plexus (L4,L5,S1,S2,S3)
piriformis syndrome
occurs when the piriformis muscle compresses the sciatic nerve
ORIGIN of obturator externus
outer surface of obturator membrane
INSERTION of obturator externus
trochanteric fossa of the femur
ACTION of obturator externus
- lateral rotation of hip joint
- adduction of hip joint
ORIGIN of obturator internus
inner surface of the obturator membrane
INSERTION of obturator internus
medial surface of the greater trochanter of the femur
ACTION of obturator internus
- lateral rotation of hip joint
- adduction og hip joint
- extension of hip joint
ORIGIN of gemellus superior
ischial spine
INSERTION of gemellus superior
medial surface of greater trochanter (with Ob. Internus tendon)
ACTION of gemellus superior
- lateral rotation of hip
- adduction of hip
- extension of hip
ORIGIN of gemellus inferior
ischial tuberosity
INSERTION of gemellus inferior
medial surface of greater trochanter (with Ob. Internus tendon)
ACTION of gemellus inferior
- lateral rotation of hip
- adduction of hip
- extension of hip
GOG sandwich
- gemellus superior
- obturator internus
- gemellus inferior
quadratus femoris
square muscle
ORIGIN of quadratus femoris
lateral border of ischial tuberosity
INSERTION of quadratus femoris
intertrochanteric crest of the femur
ACTION of quadratus femoris
- lateral rotation of hip joint
- adduction of hip
gluteus maximus
largest and most superficial glute muscle
ORIGIN of gluteus maximus
- sacrum
- ilium
- thoracolumbar fascia
- sacrotuberous ligament
INSERTION of gluteus maximus
- ilitibial tract (superficial 2/3)
- gluteal tuberosity of femur (deep 1/3)
ACTION of gluteus maximus
- extension
- lateral rotation
- adduction
gluteus medius
second glute muscle
ORIGIN of gluteus medius
ilium (gluteal surface)
INSERTION of gluteus medius
greater trochanter of femur
ACTION of gluteus medius
abduction of hip
gluteus minimus
smallest and deepest glute muscle
ORIGIN of gluteus minimus
ilium (gluteal surface)
INSERTION of gluteus minimus
greater trochanter of femur
ACTION of gluteus minimus
abduction of hip
ORIGIN of tensor fasciae latae (TFL)
anterior superior iliac spine (ASIS)
INSERTION of tensor fasciae latae (TFL)
iliotibial tract
ACTION of tensor fasciae latae (TFL)
- abduction of hip
- flexion of hip
- medial rotation of the hip
where does the femoral artery enter the lower limb?
at the inguinal ligament
where does the femoral artery travel?
down the anteromedial aspect of the thigh and passes through the adductor canal
what does the femoral artery supply?
anterior thigh
femoral artery branches
- profunda femoris (deep artery of the thigh)
profunda femoris branches
- lateral circumflex femoral artery (goes anterior)
- medial circumflex femoral artery (goes posterior)
profunda femoris
- passes between muscles of the medial compartment and pierces the medial compartment muscle
what does the profunda femoris supply?
posterior thigh
lateral circumflex femoral artery (LCFA)
- short branch of profunda
- contributes blood to anterior thigh and hip joint
- curves around neck of femur
medial circumflex femoral artery (MCFA)
- posteromedial branch of profuda
- emerges in gluteal region
- supplies blood to posterior thigh and hip joint
- curves around neck of femur
compartments of the thigh
- anterior
- medial
- posterior
popliteal fossa
- popliteal artery
- geniculate arteries
- posterior recurrent tibial artery
- anterior tibial artery
- posterior tibial artery
popliteal artery
- enters leg at base of popliteal fossa
- supplies blood to knee joint and superficial posterior leg
posterior tibial recurrent artery
- branches laterally from popliteal artery
- moves superior “recurrent”
- supplies blood to proximal end of fibula and tibia
anterior tibial artery
- originates posteriorly and branches laterally
- pierces interosseus membrane to go to anterior leg
anterior tibial arteries
- terminates in foot
- supplies blood to anterior leg
- branches into anterior tibial recurrent artery
anterior tibial recurrent artery
- terminates superiorly at the anterior knee joint
- supplies blood to knee joint
posterior tibial arteries
- runs between the superficial and deep posterior muscle groups
- terminates in foot
- supplies blood to deep posterior leg
- branches to fibular artery
fibular artery
- runs down parallel and lateral to tibial artery
- supplies blood to lateral leg and superficial posterior leg
dorsum of the foot
anterior tibial artery bifurcates at dorsum
- contains deep plantar artery which branches posteriorly
supplies:
- top of foot
- digits
plantar surface of the foot
posterior tibial artery curves under the medial calcaneus
supplies:
- bottom of foot
- digits
deep plantar artery
connect top and bottom of foot together
veins of the foot
- dorsal venous network of foot
- posterior tibial veins (bottom of foot)
- great saphenous vain
- anterior tibial veins
veins of leg
- venous network of foot
- posterior tibial veins (back of leg)
- anterior tibial veins
- great saphenous vein
- popliteal vein
great saphenous vein
empties into the femoral vein (lateral)
femoral vein
ascends from popliteal vein into the inguinal region
lumbosacral plexus
L1-S4
obturator nerve
(L2-L4)
runs down anterior medial aspect of thigh and terminates in thigh
MOTOR INNERVATION of obturator nerve
medial thigh muscles
SENSORY INNERVATION of obturator nerve
skin over the proximal part of the medial thigh
femoral nerve
(L2-L4)
descends the anterior thigh to leg and divides into branches
MOTOR INNERVATION of femoral nerve
anterior thigh muscles
SENSORY INNERVATION of femoral nerve
skin of anteromedial thigh and medial aspects of knee, leg and foot
sciatic nerve
(L4-S3)
runs inferiorly between the medial and posterior thigh compartments
- gives of muscular branches
MOTOR INNERVATION of sciatic nerve
posterior thigh muscles
sciatic nerve termination
terminates at the popliteal fossa and divides into two branches
- tibial nerve
- fibular nerve
tibial nerve
continues down the posterior aspect of leg and terminates at heel of foot
MOTOR INNERVATION of tibial nerve
posterior leg muscles and majority of foot muscles
SENSORY INNERVATION of tibial nerve
sole of foot and posterior leg
fibular (peroneal) nerve
curves around head of fibula
- once in anterior compartment of leg it divides into 3 branches
- terminates in foot
MOTOR INNERVATION of fibular nerve
- lateral and anterior leg muscles
- medial aspect of foot muscles
SENSORY INNERVATION of fibular nerve
lateral leg and dorsum of foot
anterior distal femur
- lateral condyle
- lateral epicondyle
- medial condyle
- medial epicondyle
- adductor tubercle
- patellar surface
posterior distal femur
- lateral condyle
- lateral epicondyle
- medial condyle
- medial epicondyle
- adductor tubercle
- intercondylar fossa
- linea aspera
inferior distal femur
- lateral condyle
- medial condyle
- patellar surface (anterior)
- intercondylar fossa (posterior)
adductor tubercle
above medial epicondyle
adductor hiatus
hole in interosseus membrane where femoral artery and vein and popliteal artery and vein run through
auricular surfaces on patella
sit on top of tibial plateaus
anterior proximal tibia
- lateral condyle
- medial condyle
- tibial tuberosity
- anterior border
- intercondylar eminence
intercondylar eminence
projection between the 2 condyles
posterior proximal tibia
- lateral condyle
- medial condyle
- soleal line
- tibial plateau x2
- intercondylar eminence
superior proximal tibia
- lateral condyle
- medial condyle
- tibial tuberosity
- intercondylar eminence
- tibial plateau x2
medial malleolus
points in medially
knee joint
- synovial joint
- modified hinge
contains joint capsule and bursae
knee movement
main movement
- flexion and extension
slight movement
- medial and lateral rotation
what bone is not part of the knee ?
fibula
cruciate ligaments of the knee
- anterior cruciate ligaments
- posterior cruciate ligaments
collateral ligaments of the kee
- lateral collateral ligaments
- medial collateral ligaments
other ligaments of the knee
- patellar ligament
- quadriceps tendon
***cannot see posteriorly