pelvis and hip muscles and jts

Question 1

What is the link btween axial skel (trunk) and lower extremties?

Answer 1

pelvic girlde

Question 2

What region assists w/ motion, stability, and shock absorption and helps distribute body weight evenly to the lower extremties?

Answer 2

pelvic girdle

Question 3

What bones make up pelvic girdle?

Answer 3

sacrum and innominate (os coxae)

Question 4

What bones make up the innominate bone?

Answer 4

fused ilium, ischium, and pubis on each side

Question 5

what is the largest pelvic bone??

Answer 5

ilium

Question 6

what ligaments bind to create the SI jt?

Answer 6

ant, post, and interosseous ligaments

Question 7

what ligaments form a strong dense joint capsule?

Answer 7

iliofemoral, pubofemoral, and ischiofemoral ligaments form a strong dense joint capsule that stabilizes hip jt

Question 8

What ligament is an extraoridnarily strong band that checks hip extension and rotation?

Answer 8

Iliofemoral ligament aka Y ligament

Question 9

what ligament prevents excessive abd?

Answer 9

pubofemoral ligament

Question 10

what ligament is triangular and limits hip rot and add in flex position?

Answer 10

ischiofemoral ligament

Question 11

what ligament of the hip is a stury band that bridges the acetabulr otch and completetes the acetabular ring of the hip jt?

Answer 11

transverse acetabular ligament

Question 12

what ligament is ligament of femoral head?

Answer 12

ligamentum teres ligament

Question 13

what ligament ties the head of femur to the acetabulum, providing reinforcement from w/in the jt?

Answer 13

ligamentum teres ligament

Question 14

what jt connects the sacrum to ilium on each side and is a gliding jt?

Answer 14

SI jt

Question 15

what jt connects each side of pelvic girdle anteriorly AND IS AMPHIARTHRODIAL?

Answer 15

pubic symphysis

Question 16

hip jt is formed by what articulation?

Answer 16

The hip jt is formed by the articulation of the proximal femur (femoral head) w/ the acetabulum of pelvis.

Question 17

what is femoral head covered w/

Answer 17

hyaline cartilage except at forvea capitis

Question 18

The acetabulum is aligned with what>

Answer 18

hyaline cartilage

Question 19

what is a fibrocartilaginous “lip” that adds depth to the acetabulum and serves as a cushion for femoral head?

Answer 19

acetabular labrum

Question 20

ant-pelvic tilt

Answer 20

pubic symphysis moves inferiorly, lumbar spine extends and hips flex, results in an increased lumbosacral angle

Question 21

post-pelvic tilt

Answer 21

pubic symphysis moves superiorly, lumbar spine flexes, hips extends, results in decreased lumbosacral angle

Question 22

lateral tilt

Answer 22

occurs in frontal plane, and rotation of pelvis occurs in axial plane

Question 23

what muscles are involved with ant pelvic tilt?

Answer 23

contraction of hip flexors and lumbar extensors

Question 24

hat muscles are involved with post pelvic tilt?

Answer 24

hip extensors and lumbar flexors

Question 25

lateral tilt muscles involved

Answer 25

contraction of lateral lumbar muscles, hip abd-add muscles, and axial rot happens at hip and spinal rotator muscles

Question 26

Ant muscles of hip

Answer 26

iliopsoas, pectineus, rectus femoris, sartorius, and TFL

Question 27

what muscles make up the iliospoas?

Answer 27

iliacus and psoas major

Question 28

iliospoas muscle group is strong what muscle action?

Answer 28

hip flexor

Question 29

describe the Pectineus muscle

Answer 29

small muscle that attaches the anterior pubis to the posteromedial side of the proximal femur

Question 30

Pectineus assists in what muscle action>

Answer 30

hip flexion, add, internal rot

Question 31

Rectus Femoris Muscle Action

Answer 31

RF = Hf + Ke

Question 32

RF origin

Answer 32

AIIS or Anterior inferior iliac spine

Question 33

RF insertion

Answer 33

tibial tuberosity via patella ligament

Question 34

what is the longest muscle in body?

Answer 34

sartorius

Question 35

describe sartorius

Answer 35

a 2 jt muscle that is long

Question 36

sartorius origin

Answer 36

ASIS or Anterior Superior iliac spine

Question 37

sartorius insertion

Answer 37

medial tibial surface (pes anserinus)

Question 38

sartorius muscle action

Answer 38

flexes, abd, and ext rot hip and also assists in knee flexion

Question 39

TFL orgin

Answer 39

anterior iliac crest of ilium

Question 40

TFL insertion

Answer 40

anterolateral tibial condyle via long band fascia called IT band

Question 41

TFL muscle action

Answer 41

abd, flexes hip, and stabilizes hip agst ext rot when hip is flexed and aLSO assists w/ extension and stabilization of knee

Question 42

Medial muscles of pelvis and hip region

Answer 42

gracilis and adductors longus, brevis, and magnus

Question 43

medial muscles of hip primarily cuase what muscle action

Answer 43

hip add

Question 44

What medial muscles of hip variably participate in hip flex?

Answer 44

adductor longus and brevis, and upper fibers of add magnus

Question 45

What medial muscles of hip variably participate in hip ext?

Answer 45

lower fibers of add magnus

Question 46

What medial muscles of hip variably participate in hip medial rotation?

Answer 46

add longus, brevis, and magnus

Question 47

medial muscle of hip origin

Answer 47

pubis

Question 48

adductors medial muscles insertion

Answer 48

linea aspera of femur

Question 49

gracilis insertion

Answer 49

tibia (pes anserine)

Question 50

gracilis may assist w/

Answer 50

knee flexion

Question 51

pectin may assist w/

Answer 51

hip add

Question 52

post muscles of hip include what?

Answer 52

glute max, medi, mini; 6 deep lateral rotators (piriformis, gemellus superior and inf, obturators internus and externus, and quadratus femoris), and hamstrings

Question 53

Glute max origin

Answer 53

ilium, sacrum, and coccyx

Question 54

glute max insertion

Answer 54

gluteal tuberosity, located on the lateral aspect of femur

Question 55

glute max is a powerful what action

Answer 55

glute max is powerful extensor of hip

Question 56

glute max muscle action

Answer 56

powerful hip extensor, lateral rot, abd, and lower fibers may particiapate in add

Question 57

glute med and mini muscle action

Answer 57

abd, and medial rot of hip, and vital postural msucels to keep pelvis level during locomotion

Question 58

glutes origin

Answer 58

external surface of ilium

Question 59

glutes insertion

Answer 59

greater trochanter of femur w/ most deep laTERAL rotators

Question 60

hamstrings muscle action

Answer 60

H = He +Kf

Question 61

Biceps femoris long head origin

Answer 61

ischial tuberosity

Question 62

biceps femoris short head origin

Answer 62

proximal femur

Question 63

biceps femoris insertion

Answer 63

lateral tibial condyle and fibular head

Question 64

biceps femoris long head muscle action

Answer 64

extends hip, flex knee, and causes lateral rot at both jts

Question 65

biceps femoris short head muscle action

Answer 65

only works on knee to yield knee flexion

Question 66

SM/ ST muscle action

Answer 66

extend hip, flex knee, and internally rotate both hip and knee

Question 67

SM/ ST origin

Answer 67

ischaial tuberosity

Question 68

SM/ST insertion

Answer 68

medial aspect of tibia