gluteal MM

Question 1

What are the gluteal muscles homologous to in the forelimb?

Answer 1

deltoids

gluts are larger and more complex

Question 2

What are the gluteal MM?

Answer 2

Maximus
medius
minimus

Question 3

What is the gluteal or natal fold?

Answer 3

defines inferior border of the buttocks

this is no the border of gluteus max

Question 4

Where does glut. max cross the natal fold?

Answer 4

may cross the gluteal fold, as on the left, or be entirely superior to it, as on the right.

Question 5

What aid the most superficial muscle of the gluts in the superior lateral region?

Answer 5

gluteus medius

Question 6

What is the origin of the gluteus max?

Answer 6

posterior ilium to posterior gluteal line
dorsal surface o sacrum and coccyx
sacrotuberous ligament

Question 7

What is the origin of the gluteal medius?

Answer 7

external surface of ilium between the posterior and anterior gluteal lines

Question 8

What is the origin of gluteal minims?

Answer 8

external surface of ilium between the inferior and anterior gluteal lines

Question 9

What is the posterior gluteal line?

Answer 9

between origins of gluteus maximus and medius

Question 10

What is the anterior gluteal line?

Answer 10

between origins of gluteus medius and minimus

Question 11

What is the inferior gluteal line?

Answer 11

marks inferior border of origin of gluteus minimus

Question 12

what is the insertion of gluteal max?

Answer 12

deep distal 1/4 gluteal tuberosity of femur

most fibers onto iliotibial tract

Question 13

what is the action of the gluteal max?

Answer 13

Extends thigh(especially from flexed position)
lateral rotator
steadies thigh and assit in rising from sitting

Question 14

What is the insertion of the gluteal medius?

Answer 14

lateral surface of greater trochanter of femur

Question 15

What is the insertion of gluteal minimus?

Answer 15

anterior surface of greater trochanter of the femur

Question 16

What is the action of gluteal minims and medius?

Answer 16

abduct and medial rotate thigh

keeps pelvis level when ipsilateral limb is weight bearing and opposite side during its swing phase

Question 17

How is abduction achieved by glut medius?

Answer 17

fibers that flex and medially rotate are fewer, shorter, and have less mechanical advantage.
fibers that extend and laterally rotate are more numerous, longer, and stronger.
they cancel each other out and get pure abduction

Question 18

What does the small gluts help with when the weight is on one foot?

Answer 18

are abductors and counteract the tendency for the pelvis to tilt when the body weight is borne on one foot during walking and running

Question 19

What is a positiveTrendelenburg test indicate?

Answer 19

weak small glutes based on pelvic tilt and dragging of the contralateral limb

Question 20

What does individuals may have when positive for a trendelenburg test?

Answer 20

Affected individuals may lean laterally in the direction of the weak gluteals to counteract the pelvic tilt

Question 21

What is a Duchenne limp?

Answer 21

leaning laterally in the direction of the weak gluteals to counteract the pelvic tilt

Question 22

To make a safe inter muscular injection into the gluteal region where must the fingers be placed?

Answer 22

by placing the thumb on the anterior superior iliac spine and the index finger on the tubercle of the iliac crest (the palpable lateral eminence of the ilium); the safe site is in the triangle defined by the thumb, forefinger, and iliac crest.

Question 23

What is avoided by using the correct intermucular injection site?

Answer 23

superior gluteal artery

sciatic nerve

Question 24

What is the innervation of the Gluteus Max M?

Answer 24

inferior gluteal nerve

Question 25

What is the artery and venous drainage of gluteul Max?

Answer 25

inferior gluteal artery and vein

Question 26

What is the artery nerve and vein of the small gluts?

Answer 26

Superior gluteal artery nerve and vein