Gluteal Region

Question 1

what are the borders of the gluteal region?

Answer 1

iliac crest, gluteal sulcus (groove beneath gluteal fold)

Question 2

what is the cutaneous nerve of gluteal region?

Answer 2

cluneal (op. sp. clunial) n.

Question 3

deep nerves of gluteal region?

Answer 3

sacral plexus branches (leave pelvis via sciatic foramen)

Question 4

muscle that exits greater sciatic foramen?

Answer 4

piriformis m.

Question 5

what nerves exit the greater sciatic foramen?

Answer 5

sciatic n., posterior femoral cutaneous n., obturator internus/superior gemellus n.

Question 6

what artery and nerve leave the greater sciatic foramen together?

Answer 6

pudendal n. and internal pudendal a.

Question 7

what is the only thing to leave the lesser sciatic foramen?

Answer 7

obturator internus

Question 8

where does the obturator internus/superior gemellus n enter?

Answer 8

reenters pelvis via lesser sciatic foramen

Question 9

mnemonic for pudendal n?

Answer 9

S2,3,4 keeps your penis off the floor

Question 10

where do the arteries that supply the gluteal region arise from?

Answer 10

internal iliac a.

Question 11

what does the inferior gluteal artery supply?

Answer 11

gluteus maximus, small lateral rotators, superior hamstrings

Question 12

what may provide blood to the leg if the femoral a. is occluded or severed?

Answer 12

cruicate anastomosis, uses descending branch of something? femoral

Question 13

primary function of gluteus maximus?

Answer 13

chief extensor of the thigh and lateral rotation; slight extensor of leg when working with tensor fascia lata

Question 14

what innervates gluteus maximus?

Answer 14

inferior gluteal n.

Question 15

proximal attachment of gluteus maximus?

Answer 15

posterior gluteal line

Question 16

insertion of gluteus maximus?

Answer 16

gluteal tuberosity on femur

Question 17

primary function of gluteus medius and minims?

Answer 17

thigh abduction and medial rotation (particularly gluteus minimus)

Question 18

what innervates gluteus medius and minimus?

Answer 18

superior gluteal n.

Question 19

innervation of tensor fascia lata?

Answer 19

superior gluteal n.

Question 20

function of tensor fascia lata?

Answer 20

abducts, medially rotates, and flexes thigh; slight extension of knee along with gluteus maximus

Question 21

secondary function of tensor fascia kata?

Answer 21

stores kinetic energy

Question 22

functions of IT Band?

Answer 22

abducts slightly, laterally stabilizes knee, extends leg, compensate for quad paralysis via gluteus maximus flexion, pulls patella laterally, antagonist of vastus medial is, and synergist with flexing vast us laterals for this action, stretch to treat chondromalacia patella

Question 23

how does an injury to gluteus medius and minims present as?

Answer 23

gluteal gait or Duchenne’s limb; positive Trendelenburg’s sign

Question 24

what is the nerve injured in Duchenne’s?

Answer 24

superior gluteal n.

Question 25

what effect does Duchenne’s have on patient?

Answer 25

pt loses steady action of gluteus medius and minims; lean toward side effected during stance phase of gait

Question 26

innervation of obturator internus?

Answer 26

nerve to obturator internus

Question 27

what are the superior and inferior gemelli referred to as?

Answer 27

extrapelvic parts of obturator interns; with obturator interns form the triceps coxae

Question 28

attachments of obturator externs?

Answer 28

external margins of obturator foramen, trochanteric fossa

Question 29

innervation to obturator externus?

Answer 29

obturator n.

Question 30

which gluteal muscles are vertically oriented?

Answer 30

gluteus maximus, piriformis, gluteus medius, gluteus minimus, tensor fascia latae

Question 31

which gluteal muscles are horizontally oriented?

Answer 31

gemelli, obturator internus, quadratus femoris

Question 32

medially rotators of the thigh?

Answer 32

tensor fasciae latae, gluteus minimus, gluteus medius