Week 2 - Pelvic Girdle

Question 1

Which is the largest component of the hip bone?

Answer 1

Ilium

Question 2

Define hip pointer

Answer 2

Bruising of the anterior superior iliac spine + associated soft tissues.

Question 3

What happens to the pubic symphysis in the later stages of pregnancy?

Answer 3

Hormone relaxin ⬆️ its flexibility to ease delivery.

Question 4

Whats the movement of the pelvis rotation

Answer 4

Transverse plane rotation

Question 5

What do the ilium spines serve as?

Answer 5

Attachment points for tendons of the trunk, muscles, hips + thighs.

Question 6

Functions of the bony pelvis

Answer 6

Strong + stable support for vertebral column and pelvic + abdominal organs.

Connects bones of lower limbs to axial skeleton.

Question 7

Define the pelvic brim

Answer 7

Forms the inlet into the pelvic cavity from the abdomen

Divides bony pelvis into superior + inferior portions.

Question 8

What is the hip (coxal) joint formed by?

Answer 8

Acetabulum + femoral head.

Question 9

Where does the pectineal line go in the pubis

Answer 9

Superiorly + laterally along superior ramus to purge w/ the arcuate line of the ilium.

Question 10

Define the ischium

Answer 10

Inferior, posterior portion of the hip bone.

Question 11

Define pelvic inlet

Answer 11

Superior opening of the true pelvis.

Question 12

Define the iliac tuberosity

Answer 12

Attachment point for sacroiliac ligament + auricular surface, which articulates w/ the sacrum to form the sacroiliac joint.

Question 13

Define the pelvic axis

Answer 13

Imaginary line

Curves through true pelvis:

From pelvic inlet to pelvic outlet.

Question 14

What is the false pelvis bordered by laterally?

Answer 14

Upper portions of the hip bones

Question 15

What is the false pelvis bordered by anteriorly?

Answer 15

Abdominal wall

Question 16

Define the pelvic outlet

Answer 16

Inferior opening of the true pelvis.

Question 17

Where is the pubic arch?

Answer 17

Inferior to the pubic symphysis.

Question 18

What can be found posterior to the iliac fossa?

Answer 18

Iliac tuberosity

Question 19

Where does the sciatic nerve (longest nerve in the body) pass through?

Answer 19

The greater sciatica notch.

Question 20

Whats the largest foramen in the skeleton + what is it surrounded by?

Answer 20

Obturator foramen

Surrounded by ramus + pubis.

Question 21

Define the ramus

Answer 21

Where ischium fuses w. pubis.

Question 22

What is the pubic arch formed from?

Answer 22

Inferior rami of the 2 pubic bones.

Question 23

What are the 3 arched lines on the lateral surface of the ilium?

Answer 23

Posterior gluteal line

Anterior gluteal line

Inferior gluteal line

Question 24

Features of the ischium

Answer 24

Prominent ischial spine

Lesser sciatic notch below the spine

Rough + thickened ischial tuberosity

Question 25

Define the pubic tubercle

Answer 25

Projection at the lateral end of the pubis. Also the beginning of the pectineal line.

Question 26

Define the true pelvis

Answer 26

Inferior to pelvic brim. Has the inlet, outlet + a cavity bounded by the sacrum + coccyx posteriorly, interior portions of the ilium + the pubic bones anteriorly.

Question 27

Whats the movement of the pelvis tilt

Answer 27

Frontal plane rotation

Question 28

What does the medial surface of the ilium contain?

Answer 28

Iliac fossa

Question 29

What is the false pelvis bordered by posteriorly?

Answer 29

Lumbar vertebrae

Question 30

What does each of the 2 hip bones of a newborn consist of?

Answer 30

3 bones separated by cartilage: 1. Superior ilium 2. Inferior + anterior pubis 3. Inferior + posterior ischium

Question 31

What does the space enclosed by the false pelvis contain?

Answer 31

Superior portion of the urinary bladder when full. Lower intestines Uterus, ovaries + uterine tubes

Question 32

Which part of the bony pelvis is the false pelvis?

Answer 32

Part superior to pelvic brim.

Question 33

What does the true pelvis contain?

Answer 33

Rectum Urinary bladder Vagina Cervix Prostate

Question 34

What is the iliac fossa?

Answer 34

Concavity where tendon of the iliac muscle attaches.

Question 35

What are most of the structural differences between the pelves for?

Answer 35

Adaptations to the req. of pregnancy + child birth.

Question 36

Describe the pelvic girdle

Answer 36

Hip bones unite ANTERIORLY at the pubic symphysis POSTERIORLY w/ sacrum at sacroiliac joint

Question 37

Define the acetabulum notch

Answer 37

Deep indentation on the inferior side of the acetabulum. Forms a foramen through which bv + nerves pass + serve as attachment points for the ligaments of the femur.

Question 38

What is the ilium composed of?

Answer 38

A superior ala + an inferior body

Question 39

Define the pubis

Answer 39

Anterior + inferior part of the hip bone. Compromised of the superior ramus, inferior ramus + a body.

Question 40

What is the pelvic inlet bordered by?

Answer 40

Pelvic Brim.

Question 41

Define the pubis symphysis

Answer 41

Joint between 2 pubes of the hip bones. Consists of a disc of fibrocartilage.

Question 42

By what age do the 3 bones in the 2 hip bones fuse together by?

Answer 42

23

Question 43

What are the movements of the pelvis tilt

Answer 43

Sagittal plane rotation. Posterior + Anterior tilt