Module 6

Question 1

ilium

Answer 1

largest part of hip bone, thick near the hip joint and expands into a large curved plate of bone superiorly

Question 2

acetabulum

Answer 2

the ticket for the head of the femur

Question 3

iliac crest

Answer 3

ends anteriorly in a blunt anterior superior iliac spine

Question 4

ischium

Answer 4

the inferior and pos- terior portion of the hip bone, is situated between the body of the ilium and the inferior ramus of the pubis.
a side- ways-arched or U-shaped structure, with its concave, notched margin contributing to the posterior two-thirds of the obturator foramen (the large hole on the anterior surface of the hip bone)

Question 5

ischium surface features

Answer 5

comprised of a superior body and an inferior ramus. The ramus joins the pubis. Features of the ischium include the prominent ischial spine, a lesser sciatic notch below the spine, and a rough and thickened ischial tuberosity. Together, the ramus and the pubis surround the obturator foramen, the largest foramen in the skeleton.

Question 6

pubis

Answer 6

is the inferior, anterior portion of the hip bone and, like the ischium, has the form of a sideways arch or a U-shape

Question 7

iliopsoasas- posas major and iliacus- origin and insertion

Answer 7

origin psoas major: transverse processes and bodies of lumbar vertebrae
iliacus- iliac fossa and sacrum
insertion
psoas major- with iliacus into lesser trochanter of femur
illiacus- with psoas major into lesser trochanter of femur

Question 8

psoas major and illiacus muscles action

Answer 8

Psoas major and iliacus muscles acting together flex thigh at hip joint, rotate thigh laterally, and flex trunk on the hip as in sitting up from the supine position

Question 9

gluteus maximum- origin and insertion

Answer 9

origin- Iliac crest, sacrum, coccyx, and aponeurosis of sacrospinalis
insertion: Iliotibial tract of fascia lata and superior lateral part of linea aspera (gluteal tuberosity) under greater trochanter of femur

Question 10

gluteus maximus action

Answer 10

Extends thigh at hip joint and laterally rotates thigh

Question 11

gluteus medius origin and insertion

Answer 11

origib- illium
insertion- greater trochanter of femur

Question 12

gluteus medius action

Answer 12

abducts thigh at hip joint and medially rotates thigh

Question 13

gluteus minimus action

Answer 13

abducts thigh at hip joint and medially rotates thigh

Question 14

gluteus minimus origin and insertion

Answer 14

origin- ilium
insertion- greater trochanter of femur

Question 15

tensor fasciae latae- origin and insertion

Answer 15

origin- iliac crest
insertion- tibia by way of the iliotibial tract

Question 16

tensor fasciae latae action

Answer 16

flexes and abducts thigh at hip joint

Question 17

adductor magnus origin and insertion

Answer 17

origin- inferior remus of pubis and ischium to ischial tuberosity
insertion- linea aspera of femur

Question 18

adductor magnus-action

Answer 18

Adducts thigh at hip joint and rotates thigh; anterior part flexes thigh at hip joint, and posterior part extends thigh at hip joint*

Question 19

rectus femoris- origin and insertion

Answer 19

origin- anterior inferior iliac spine
insertion- Patella via quadriceps tendon and then tibial tuberosity via patellar ligament

Question 20

rectus femoris action

Answer 20

All four heads extend leg at knee joint; rectus femoris muscle acting alone also flexes thigh at hip joint

Question 21

vasters lateralis origin and insertion

Answer 21

origin- greater trochanter and lines aspera of femur
insertion- Patella via quadriceps tendon and then tibial tuberosity via patellar ligament

Question 22

vasteus medialis origin and insertion

Answer 22

origin- linea aspera of the femur
insertion- Patella via quadriceps tendon and then tibial tuberosity via patellar ligament

Question 23

vasteus intermedius origin and insertion

Answer 23

origin- anterior and lateral surfaces of body of femur
insertion- Patella via quadriceps tendon and then tibial tuberosity via patellar ligament

Question 24

vasteus lateralis action

Answer 24

All four heads extend leg at knee joint; rectus femoris muscle acting alone also flexes thigh at hip joint

Question 25

vastus medialis action

Answer 25

All four heads extend leg at knee joint; rectus femoris muscle acting alone also flexes thigh at hip joint

Question 26

vastus intermedius action

Answer 26

All four heads extend leg at knee joint; rectus femoris muscle acting alone also flexes thigh at hip joint

Question 27

sartious origin and insertion

Answer 27

origin- anterior superior iliac spine insertion- medial surface of body of tibia

Question 28

sartorious action

Answer 28

Weakly flexes leg at knee joint; weakly flexes, abducts, and laterally rotates thigh at hip joint

Question 29

biceps femoris origin and insertion

Answer 29

origin- Long head arises from ischial tuberosity; short head arises from linea aspera of femur insertion- head of fibula and lateral condyle on tibia

Question 30

biceps femoris action

Answer 30

flexes leg at knee joint and extends thigh at hip joint

Question 31

semitendinosus origin and insertion

Answer 31

origin- ischial tuberosity insertion- proximal part of medial surface of shift of tibia

Question 32

semitendinosus action

Answer 32

flexes the elf at knee joint and extends thigh at hip joint

Question 33

semimembranosus origin and insertion

Answer 33

orirgin- ischial tuberosity insertion- medial condyle of the femur

Question 34

semimembranous action

Answer 34

flexes leg at knee joint and extends thigh at hip joint

Question 35

what are the two main parts of the ilium

Answer 35

The superior ala (wing) and the inferior body.

Question 36

what part of the ilium is a component of the acetabulum

Answer 36

the body

Question 37

what is the function of the acetabulum

Answer 37

serves as the socket for the head of the femur

Question 38

what is the superior border of the ilium called

Answer 38

iliac crest

Question 39

What structure is located at the anterior end of the iliac crest?

Answer 39

the anterior superior iliac spine (ASIS).

Question 40

What is a "hip pointer"?

Answer 40

Bruising of the anterior superior iliac spine (ASIS) and associated soft tissues, often caused by body-contact sports.

Question 41

What structure is located below the anterior superior iliac spine (ASIS)?

Answer 41

The anterior inferior iliac spine (AIIS).

Question 42

What structure is located at the posterior end of the iliac crest?

Answer 42

The posterior superior iliac spine (PSIS).

Question 43

What is located below the posterior superior iliac spine (PSIS)?

Answer 43

The posterior inferior iliac spine (PIIS).

Question 44

What is the function of the iliac spines?

Answer 44

They serve as attachment points for the tendons of muscles and ligaments of the trunk, hip, and thighs.

Question 45

What is located below the posterior inferior iliac spine (PIIS)?

Answer 45

The greater sciatic notch.

Question 46

What important structure passes through the greater sciatic notch?

Answer 46

The sciatic nerve, the largest nerve in the body.

Question 47

What is the iliac fossa?

Answer 47

A concavity on the medial surface of the ilium where the tendon of the iliacus muscle attaches.

Question 48

What structure is posterior to the iliac fossa?

Answer 48

The iliac tuberosity.

Question 49

What attaches to the iliac tuberosity?

Answer 49

The sacroiliac ligament.

Question 50

: What is the auricular surface of the ilium?

Answer 50

An ear-shaped surface that articulates with the sacrum to form the sacroiliac joint.

Question 51

What ridge projects anteriorly and inferiorly from the auricular surface?

Answer 51

The arcuate line

Question 52

What are the three arched lines on the lateral surface of the ilium?

Answer 52

The posterior gluteal line, the anterior gluteal line, and the inferior gluteal line.