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Gross Anatomy > thigh > Flashcards

Flashcards in thigh Deck (38):
1

compartments of the lower limb

anterior: knee extensors, hip flexors

medial: hip adductors/flexors

posterior: knee flexors, hip extensors

2

contents of femoral sheath

Femoral...

Nerve

Artery

Vein

Empty space

Lymph nodes

3

IT band insertion

gerdy's tubercle

4

IT band function

keeps femur from moving on tibia when flexed

5

femoral triangle contents

femoral sheath

6

apex of femoral triangle leads to...

adductor canal

7

adductor canal contents

entering: femoral A, V saphenous N

exiting: popliteal A,V, saphenous branch of femoral N and A

8

popliteal fossa contents (4)

femoral A (becomes popliteal, then branches into post and ant tibial A)

sciatic N (branches into tibial and common fib N)

short saphenous V

popliteal lymph nodes

9

sartorius

tailors muscle,

ASIS-->ant med tib

flexes, abducts, laterally rotates hip

flexes, internally rotates (when flexed) knee

femoral n

10

TFL

strengthens IT band

begins hip flexion 

laterally rotates hip

superior gluteal n

11

quads

powerful knee extensors, come together to form the quadriceps tendon which attaches superiorly to patella femoral n. 1. rectus femoris: 2 heads, AIIS, ant capsule of hip joint, also flexes hip ONLY ONE THAT CROSSES HIP JOINT 2. vastus lateralis 3. vastus medialis 4. vastus intermedius

12

vastus medialis obliquus

distal portion of vastus medialis

active during terminal knee ext

prevents patella from tracking laterally

13

articularis genu

small muscle, often part of the vastus intermedius protects synovial membrane during knee ext

14

pectineus

pubis-->post femur

starts hip flexion

2 nerve innervation!!: femoral and obturator

15

iliopsoas

combo of iliacus and psoas major

most powerful hip flexor 

only ones that can flex hip from a seated position

lumbar lordosis, ant pelvic tilt

L1&L2 ventral rami

16

anterior thigh muscles (5)

sartorious

TFL

quads

pectineus

iliopsoas

17

medial comp thigh muscles (5)

pectineus

adductor longus

adductor brevis

adductor magnus

gracilis

flex and adduct hip, assist in internal rot obturator nerve

18

adductor magnus

can also extend hip

 dual innervation--> 2 portions

1. anterior/adductor portion: obturator n

2. post/hamstring portion: extends hip, sciatic n

19

gracilis

2 joint muscle

most medial medial comp muscle 

flexes & adducts hip

flexes knee

inwardly rot tibia on femur with knee flexed

20

femoral cut n

lateral thigh

21

femoral n

cut: skin on ant and med thigh

motor: quads, sartorius, half of the pectineus

22

muscles in post comp

hamstrings

23

hamstrings

biceps femoris: long head inserts on ischial tub, short on linea aspera, both connect to the head of the fib semimembranosus

semitendonosus

sciatic n

24

pes anserinus

sartorius

gracilis

semitendonosus

all insert onto the ant med tib and flex the knee

also inwardly rot when knee is flexed

25

ant comp innerv

femoral, lat femoral cut

26

med comp innerv

obturator

27

post comp innerv

sciatic:

lateral/common fib: short head of biceps femoris only

tibial portion: all other hamstrings

post femoral cut: to skin in post comp

28

blood supply to ant comp

sup femoral A. ---> deep femoral

29

blood supply to med comp

obturator A --->med and lat femoral Cx

30

blood supply to post comp

deep femoral A

31

osgood schlatus

tibial tuberosity doesnt fuse till late, gets pulled away from tibia, bone grows faster than muscle

32

popliteal artery

found in popliteal fossa, supplies knee joint and its capsule

33

innervation of quads

femoral

34

innervation of TFL

superior gluteal

35

innervation of sartorius

femoral

36

innervation of pectineus

DUAL: femoral and obturator

37

innervation of iliopsoas

L1&L2 ventral rami

38

adductor magnus innervation

DUAL: anterior portion: obturator post portion: sciatic