joints

Question 1

what are the 3 functions of the lower limb?

Answer 1

1.locomotion
2. posture/balance
3. sustain all body weight

Question 2

describe the pelvic girdle

Answer 2

-bones that connect limbs to the trunk
-2 hip bones and sacrum
-makes a complete ring

Question 3

describe the hip bone

Answer 3

-the left and right are identical
-includes 3 bones fused together: ilium, ischium, and pubis

Question 4

describe the fibrous joint type and give an example

Answer 4

connective tissue between bones, non-moveable. Example: sutures in skull or your teeth

Question 5

describe the cartilaginous joint type and give an example

Answer 5

cartilage between bones, slightly moveable.
Example: intervertebral disk between vertebra or the pubic symphysis

Question 6

describe the synovial joint type and give an example

Answer 6

freeley moveable joints. These contain:
-uniaxial synovial joints: axis of movement (ex: elbow joint)
-biaxial synovial joints: 2 axis of movement (ex: wrist, fingers)
-multiaxial synovial joints: more than 2 axis of movement (ex: hip,shoulder,thumb)
-plane/gliding synovial joints: no axis of movement. Bones just slide by each other.

Question 7

describe the hip joint

Answer 7

between the acetabulum and head of femur. Has a synovial multiaxial joint.
Does the following:
- flexion/extension
-abduction/adduction
-medial/lateral rotation

Question 8

what does the acetabular labrum do

Answer 8

increases stability of hip joint

Question 9

what does the ischiofemoral ligament do

Answer 9

known as the ‘joint capsule’, stabilizes the joint

Question 10

what does the iliofemoral ligament do

Answer 10

limits hip extension