Articulations in depth

Question 1

what helps stabilize the acetabulofemoral joint

Answer 1

strong ligaments, strong joint capsule and powerful muscles

Question 2

what does the acetabulofemoral joint consist of

Answer 2

head of femur
acetabulum

Question 3

this deepens the concavity of the acetabulum and helps stabilize the acetabulofemoral joint

Answer 3

fibrocartilage acetabular labrum
(deep hip pain usually in front when injured)

Question 4

contains a small artery that supplies some of the blood to the head of the femur

Answer 4

ligament of the head of the femur (ligamentum teres)

Question 5

these support the joint capsule and contain arteries that supply most of the boold to the neck and head of the remur

Answer 5

retinacular fibers
(usually injured when you dislocate your hip)

Question 6

what 2 articulations are in the knee joint

Answer 6

tibiofemoral joint
patellofemoral joint

Question 7

what kind of joint is the patellofemoral joint of the knee

Answer 7

gliding (plane) joint

Question 8

where does the patella articulate with the femur

Answer 8

trochlea (patellar surface) of the femur

Question 9

Quadriceps tendon

Answer 9

inserts onto the patella, which is embedded in this tendon

Question 10

Patellar Ligament/Tendon

Answer 10

extends inferiorly from the patella and attaches to the tibial tuberosity

Question 11

what is the tibiofemoral joint stabilized by medially and latteraly?

Answer 11

Medial collateral ligament (MCL)
Lateral collateral ligament (LCL)

Question 12

Is the LCL attached to the meniscus

Answer 12

no
only the MCL

Question 13

Varus

Answer 13

bow legged position/displacement

Question 14

Valgus

Answer 14

Knock Knee position/displacement

Question 15

what prevents varus displacement of the knee

Answer 15

lateral collateral ligament (LCL)

Question 16

what is a varus stress test

Answer 16

it tests the integrity of the LCL

Question 17

what prevents valgus displacement of the knee

Answer 17

Medial collateral ligament (MCL)

Question 18

valgus stress test

Answer 18

test the integrity of the MCL

Question 19

what can also tears when you tear your MCL

Answer 19

medial meniscus

Question 20

these are c-shaped and made of fibrocartilage. They help stabilize the knee and play a very important role in dispersing forces placed on the articular cartilage

Answer 20

medial meniscus
Lateral meniscus

Question 21

how can you injure your menisci

Answer 21

twisting motions, especially with weight-bearing

Question 22

what is tight (taut) when the tibiofemoral joint is flexed

Answer 22

Posterior cruciate ligament (PCL)

Question 23

what is tight (taut) when the tibiofemoral joint is extended

Answer 23

Anterior cruciat ligament (ACL)

Question 24

how to most ACL injuries occur

Answer 24

when bones of the leg twist in opposite directions. Usually a cutting or pivoting motion

Question 25

Clinical testing for ACL tear

Answer 25

lachmans test Anterior drawer test

Question 26

Clinical testing for PCL tear

Answer 26

Posterior Sag Test Posterior drawer test

Question 27

autograft replacement

Answer 27

uses your own tissues, such as the middle portion of the patellar ligament

Question 28

allograft replacement

Answer 28

uses materials from another person (cadaver)

Question 29

what are the 2 bursae associated with the patella

Answer 29

prepatellar bursa (anterior to the patella) Infrapatellar bursa (inferior to the patella)

Question 30

hinge joint formed by the medial and lateral malleoli and the talus

Answer 30

talocrural joint

Question 31

what is the talocrural joint surrounded by

Answer 31

articular capsule

Question 32

medial ligament on ankle

Answer 32

deltoid ligament

Question 33

lateral ligaments on ankle

Answer 33

posterior talofibular ligament anterior talofibular ligament calcaneofibular ligament

Question 34

what does an excessive inversion sprain of the ankle rupture

Answer 34

anterior talofibular ligament and the calcaneofibular ligament

Question 35

this can cause damage to the deltoid ligament on the medial side of the ankle

Answer 35

eversion of the ankle

Question 36

what can help reduce the incidence of of ankle sprains

Answer 36

high top athletic shoes

Question 37

these are often accomanied by bleeding and inflammation of the joint capsule

Answer 37

sprains

Question 38

what kind of joints are intertarsal joints

Answer 38

planar (gliding) joints

Question 39

what kind of joins are metatarsophalangeal joint

Answer 39

condyloid joints

Question 40

what kind of joints are interphalangeal joints

Answer 40

hinge joints