Bones and Joints of the Lower Limb Flashcards
What is the function of the lower limb?
Minimizing energy expenditure when standing and walking
Locomotion - walking, running, propulsion
Weight bearing - standing, control advance of the body over the foot
What are the bones of the lower limb (major)?
Pelvic/hip/innominate bone (gluteal) Femur Tibia Fibula Bones of the foot
What is another name for the pelvic bone?
Hip/innominate bone, gluteal
What are the different regions of the pelvic bone called?
Ilium, pubis, ischium
Which leg bone is medial?
Tibia
Which leg bone is lateral?
Fibula
What are the bones of the foot called?
Tarsals, metatarsals, phalanges
How many tarsals are there in the foot?
7
How many metatarsals are there in the foot?
5
How many phalanges are there in the foot?
14
What is a sesamoid bone?
Bone embedded within a tendon or muscle
What is an example of a sesamoid bone?
Knee
What forms the pelvic girdle?
Formed by two hip bones and sacrum
What does the pelvic girdle connect?
Connects lower limb to vertebral column
What forms the acetabulum?
Ischium and pubis
When does the acetabulum complete ossification?
20 yrs
What are the types of joints?
Fibrous
Cartilaginous
Synovial
What is the most stable joint?
Fibrous joints
Describe the movement of a cartilaginous joint.
Small movement
Describe the movement of synovial joints and the various classes classified according to shape.
Very mobile.
Plane, pivot, hinge, ball and socket, condylar, ellipsoid, saddle
What are the joints of the pelvis?
Sacroiliac joint and pubic symphysis
What type/s of joint is the sacroiliac joints?
Synovial anteriorly
Fibrous posteriorly
What type of joint is the pubic symphysis?
Fibrocartilaginous
What happens to the joints around the pelvis during pregnancy?
They soften due to the hormone relaxin.