posterior thigh of gluteal region

Question 1

label the correct parts

Answer 1

Question 2

label the right parts of the pelvis

Answer 2

green is sacrospinous ligament
blue is sacrotuberous ligament
red is greater sciatic foramen
pink is lesser sciatic foramen

Question 3

label the right parts
intertrochanteric line, lesser trochanter, greater trochanter, linea aspera, intertrochanteric crest, lateral supracondyler line, gluteal tuberosity

Question 4

label the proper gluteal region surface
intergluteal cleft, ischial tuberosity, greater trochanter, gluteal fold

Answer 4

Question 5

what are the two layers in muscles of gluteal region

Answer 5

superficial and deep

Question 6

what is in the superficial muscles of gluteal region?

Answer 6

Ø Gluteus maximus
Ø Gluteus medius
Ø Gluteus minimus
Ø Tensor fascia lata

Question 7

what is gluteus maximus?

Answer 7

Largest, heaviest and most coarsely fibered muscle

Question 8

what is the origin, insertion, innervation, action of gluteus maximus?

Answer 8

origin - Ilium, Sacrum, Sacrotuberous ligament
insertion - Gluteal tuberosity, iliotibial tract band
innervation - Inferior gluteal nerve
action - hip extension

Question 9

what is gluteus medius?

Answer 9

lies deep to the gluteus maximus

Question 10

what is the origin, insertion, innervation, action of gluteus medius?

Answer 10

origin - Outer surface of
ilium
insertion - Greater trochanter
innervation - Superior gluteal nerve
action - Abduction and medial
rotation, Gait stabilization

Question 11

what is gluteus minimus?

Answer 11

Smallest and lies deep to the gluteus medius

Question 12

what is the origin, insertion, innervation, action of gluteus minimus?

Answer 12

origin - Outer surface of ilium
insertion - Greater trochanter
innervation - Superior gluteal nerve
action - Abduction and medial
rotation, Gait stabilization

Question 13

what is tensor fasciae latae?

Answer 13

Lies on the lateral side of the thigh

Question 14

what is the origin, insertion, innervation, action of tensor fasciae latae?

Answer 14

origin - ASIS and anterior iliac crest
insertion - IT band, tibia
innervation - Superior gluteal nerve
action - Flexes hip and tenses IT band

Question 15

what are deep gluteal muscles?

Answer 15

• Small muscles
• Mainly lateral rotators of the
  femur at the hip joint

Question 16

what type of small muscles are in deep gluteal muscles?

Answer 16

Ø Piriformis
Ø Superior gemellus
Ø Obturator internus
Ø Inferior gemellus
Ø Quadratus femoris

Question 17

what is piriformis?

Answer 17

Important landmark in gluteal region

Exits through greater sciatic foramen

Question 18

what is the origin, insertion, innervation, action of piriformis?

Answer 18

origin - Anterior sacrum
insertion - Greater trochanter
innervation - Nerve to Piriformis
action - Lateral rotation of thigh, Abduction of thigh, Stabilization of hip

Question 19

what is obturator internus?

Answer 19

Exits pelvis via Lesser Sciatic
Foramen

Question 20

what is the origin, insertion, innervation, action of obturator internus?

Answer 20

origin - Pelvic surface of obturator membrane and surrounding bone
insertion - greater trochanter
innervation - nerve to obturator internus
action - none

Question 21

what is the origin, insertion, innervation, action of superior and inferior gemellus?

Answer 21

origin - ischium
insertion - trochanteric fossa
innervation - Superior – nerve to
obturator internus, Inferior – nerve to quadratus femoris

Question 22

what is the origin, insertion, innervation, action of quadratus femoris?

Answer 22

origin - ischium
insertion - intertrochanteric crest
innervation - nerve to quadratus femoris

Question 23

what are deep gluteal muscles?

Answer 23

piriformis
Superior gemellus
Obturator internus
Inferior gemellus
Quadratus femoris

Question 24

label the nerves of the gluteal region
- Superior gluteal nerve
* Inferior gluteal nerve
* Sciatic nerve
* Pudendal nerve
* Posterior cutaneous nerve of the the thigh

Answer 24

Question 25

what is sciatic nerve?

Answer 25

Formed from anterior rami of spinal nerves L4-S3

Question 26

what are the 2 nerves in the sciatic nerve composed of?

Answer 26

• tibial nerve
• common peroneal nerves

Question 27

what are posterior thigh muscles commonly called?

Answer 27

hamstring
muscles

Question 28

what are the 3 large muscles in posterior thigh muscles?

Answer 28

semitendinosus is purple
semimembranosus is yellow
biceps femoris is pink

Question 29

what do posterior thigh muscles do?

Answer 29

Span the hip & knee joints

Question 30

what is origin of posterior thigh muscles?

Answer 30

ischial tuberosity deep to the gluteus maximus

Question 31

yes or no, are they extensor of the thigh & flexor of leg (posterior thigh muscles)

Answer 31

yes

Question 32

what is semimembranosus?

Answer 32

Deep to semitendinosus

Question 33

what is origin, insertion, action, innervation of semimembranosus?

Answer 33

Question 34

what is origin, insertion, action, innervation of semitendinosus?

Answer 34

Question 35

what is in pes anserinus?

Answer 35

sartorius, gracilis, semitendinosus

Question 36

what is biceps femoris muscle?

Answer 36

• Most lateral muscle of the
  group;
• has two heads, short and
  long

Question 37

what is origin, insertion, action, innervation of biceps femoris muscle?

Answer 37

origin - Long head - ischial
tuberosity. Short head- linea aspera
insertion - head of fibula
innervation - Long head: Tibial division of sciatic nerve. Short head: common fibular division of sciatic nerve
action - both heads: flex leg
long head: extends thigh

Question 38

what is popliteal fossa?

Answer 38

Diamond shaped
space posterior to
knee joint.

Question 39

what are the boundaries of popliteal fossa?

Answer 39

Question 40

label the proper vein nerve and artery in popliteal fossa

popliteal vein, popliteal artery, tibial nerve, common peroneal nerve

Answer 40