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Exam 3- Anatomy > Gluteal Region > Flashcards

Flashcards in Gluteal Region Deck (47)
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1

superior boundary of the gluteal region

iliac crest

2

inferior boundary of gluteal region

groove beneath gluteal fold

3

what exits from the greater sciatic foramen? (7)

gluteal neurovascular bundles
piriformis m.
sciatic nerve
posterior femoral cutaneous n.
pudendal n.
internal pudendal n.
obturator interns/sperior gemellus nerve

4

enters in lesser sciatic foramen (4)

pudendal n.
internal pudendal artery
obturator internus
superior gemellus nerve

5

exits lesser sciatic foramen

obturator internus

6

two main ligaments of the gluteal region

sacrospinous ligament
sacrotuberous ligament

7

superior and middle cluneal nerves

via lateral branches of dorsal rami

supply superior 2/3 (sacrum and adjacent area)

8

inferior cluneal nerves

gluteal branches of posterior femoral cutaneous nerve

supply inferior 1/3

9

superior gluteal nerve

leaves pelvis superior to piriformis with superior gluteal artery

runs between gluteus medius and gluteus minimus

supplies gluteus medius, gluteus minimus, sensor fasciae latae

10

inferior gluteal nerve

supplies gluteus maximus

leaves pelvis inferior to piriformis (with inferior gluteal artery)

11

what is the largest nerve in the body?

sciatic

L4-S3 ventral rami

12

where does the sciatic nerve leave the pelvis? How?

Greater sciatic foramen

inferior to piriformis

runs inferiorly deep to gluteus maximus

13

where does the sciatic nerve divide?

halfway down the thigh into tibial and common fibular nerves

14

true or false

sciatic nerve doesn't supply ANY gluteal structures

true

15

posterior hip dislocation

causes damage to sciatic nerve

may result in paralysis of hamstrings and muscles distal to knee

sensory change may occur in skin

16

posterior femoral cutaneous

S1- S3

supplies skin of the region

more than any other cutaneous nerve

17

ventral rami of quadratus femurs/inferior gemellus nerve

L4-S1

18

ventral rami of obturator internus/superior gemellus nerve

L5-S2

19

obturator internus/superior gemellus leaves and reenters where?

leaves pelvis via greater sciatic foramen

reenters via lesser sciatic foramen

20

pudendal nerve

anterior division of S2-S4

most medial structure exiting greater sciatic

renters via lesser sciatic foramen to supply perineal structures

21

arteries of the gluteal region (3)

arise from internal iliac

superior gluteal artery
inferior gluteal artery
internal pudendal artery

22

superior gluteal artery

largest internal iliac artery branch

superficial branch: gluteus maximus


deep branch: gluteus medium, minimum, tensor fascia lata

23

inferior gluteal artery supplies

gluteus maximus
small lateral rotators
superior hamstrings

24

cruciate anastomosis

transverse branch of medial circumflex femoral
terminal part of lateral circumflex femoral artery
first perforating artery
inferior gluteal

allows blood to enter knee, leg if femoral artery is occluded or severed (war)

25

internal pudendal artery

reenters pelvis via lesser with pudendal nerve

supplies perineal muscles and external genitalia

doesn't supply gluteal structures

26

where should intragluteal injections be made?

supero-ateral part of gluteal region

avoids sciatic nerve and other gluteal nerves and vessels

27

gluteus maximus

largest gluteal muscle

chief extensor of the thigh and lateral rotation

slight extension of leg when working with tensor fascia late

inferior gluteal nerve (L5-S1)

28

gluteus medius and minimus

partially covered by gluteus maximus

medius is over minimus

thigh abduction and medial rotation

superior gluteal nerve (L5-S1)

29

tensor fascia lata is enclosed by

fascia lata

30

tensor fascia lata innervation

superior gluteal nerve (L4-S1)