lab gluteal

Question 1

what is the main attachment of the gluteus maximus? what does the deeper part of muscle insert?

Answer 1

iliotibial tract

gluteal tuberosity

Question 2

what muscle partially originate from the sacrotuberous ligament? what are the attachments of this ligament

Answer 2

gluteus maximus

ischial tubersity–> coccyx, sacrum and posterior inferior and superior spines of ilium

Question 3

what muscle exits greater sciatic foramen and inserts at greater trochanter?

Answer 3

piriformis

Question 4

what does the the superficial and deep division of superior gluteal artery and vein supply?

Answer 4

superficial division: gluteus max

deep division: glute med

Question 5

what nerve passes through piriformis muscle 10% of time?

Answer 5

common peroneal n

Question 6

what does the terminal branches of the inferior gluteal vessels and nerve supply

Answer 6

gluteus maximus

Question 7

what nerve is located lower border of piriformis and exist the greater sciatic foramen?

Answer 7

posterior femoral cutaneous nerve

Question 8

what does the nerve to the obturator internus innervate? describe the course of innervation

Answer 8

supplies superior gemmellus, re enters the pelvis through lesser sciatic foramen to supply obturator internus

Question 9

where does the superior, inferior gemmi and obturator internus attach?

Answer 9

medial border of the greater trochanter

Question 10

what does the nerve to the quadratus femoris innervate

Answer 10

inferior gemellus and quadratus femoris

Question 11

describe the course of the internal pudendal a&v, and pudendal nerve

Answer 11

cross the spine of ischium and sacrospinous ligament and disappear through lesser sciatic foramen

Question 12

what develops the cruciate anastamosis

Answer 12

1st perforating branch of profunda femoral artery
medial femoral circumflex
inferior gltueal artery
transverse branch of lateral femoral circumflex artery

Question 13

what supplies the tensor fasciae latae

Answer 13

superior gluteal nerve and deep branch of superior gluteal artery

Question 14

What is the unique relatinoship between the sciatic nerve and piriformis

Answer 14

10% of bodies, common peroneal division will have divided already and wil pass through the piriformis muscleand then joint the tibial division below muscle. occasionally the two division will remain separate