Articulations: Selected Articulations in Depth

Question 1

Name the 2 ligaments of the acromioclavicular joint

Answer 1

• acromioclavicular ligament

- coracoclavicular ligament

Question 2

What helps to deepen the concavity of the glenoid cavity in the glenohumeral joint?

Answer 2

the glenoid labrum

Question 3

Name the 4 major ligaments of the glenohumeral joint.

Answer 3

• coracoacromial ligament
• coracohumeral ligament
• glenohumeral ligaments
• transverse humeral ligament

Question 4

injury that can occur from swinging young children by their arms

Answer 4

subluxation of the head of the radius from the anular ligament

Question 5

what typically happens to the joint when a finger is “jammed”

Answer 5

joint dislocates posteriorly, where there is no ligamentous support

Question 6

What part of the coxal joint is very similar to that of the glenohumeral joint?

Answer 6

the acetabular labrum

Question 7

What is the largest and most complex diarthrosis of the body?

Answer 7

the knee joint

Question 8

What is meant by varus deviation?

Answer 8

hyperadduction of the lower leg, part distal to the joint is abnormally angulated towards the midline of the body

Question 9

ligament in knee that prevents varus deviation

Answer 9

LCL-lateral collateral ligament

Question 10

collateral ligament that is NOT attached to the meniscus

Answer 10

LCL

Question 11

collateral ligament that IS attached to the meniscus

Answer 11

MCL

Question 12

ligament in knee that prevents valgus deviation

Answer 12

MCL-medial collateral ligament

Question 13

What is meant by valgus deviation?

Answer 13

hyperabduction of the lower leg, part distal to the joint is abnormally angulated away from the midline of the body

Question 14

stabilizing ligament on from surface of knee that prevents the knee from collapsing inward

Answer 14

ALL-anteriolateral ligament

Question 15

C-shaped fibrocartilage pads located on the condyles of the tibia

Answer 15

medial meniscus and lateral mensicus

Question 16

When the knee is extended, this cross-shaped ligament is pulled tight and prevents hyperextension

Answer 16

ACL-anterior cruciate ligament

Question 17

When knee is flexed, this cross-shaped ligament is pulled tight and prevents hyperflexion

Answer 17

PCL-posterior cruciate ligament

Question 18

tibia rotates laterally to tighten ACL and squeeze meniscus between tibia and femur. this accomplishes what?

Answer 18

locking the knee

Question 19

what ligament is frequently torn in knee dislocations?

Answer 19

ACL

Question 20

transplantation of tissue from person who is genetically different

Answer 20

allograft

Question 21

tissue transplant from one site on a person to a different site on the same person

Answer 21

autograft

Question 22

tissue transplant from genetically identical person

Answer 22

syngenetic graft/isograft

Question 23

tissue transplant from an animal into a human

Answer 23

heterograft/xenograft

Question 24

stretching or tearing of ligaments without fracture or dislocation of the joint

Answer 24

sprain

Question 25

what may result from an overeversion sprain?

Answer 25

a Pott fracture

Question 26

when the posterior talar process appears a separate ossicle in an adult and they suffer a traumatic event

Answer 26

os trigonum syndrome

Question 27

high ankle sprain/ disruption of interosseous membrane that holds distal ends of tibia and fibula together

Answer 27

syndesmotic ankle sprain

Question 28

movement of plantar surface (sole) medially

Answer 28

inversion

Question 29

movement of plantar surface (sole) laterally

Answer 29

eversion

Question 30

ligament on medial side of talocrural joint that is incredibly strong and rarely tears

Answer 30

deltoid ligament

Question 31

ligaments on the lateral side of the talocrural joint and where they pass relative to the malleolus of the fibula

Answer 31

- anterior talofibular ligament (anteriorly) - posterior talofibular ligament (posteriorly) - calcaneofibular (lateral) ligament (inferiorly)

Question 32

most common cause of ankle sprains

Answer 32

excessive inversion

Question 33

what is a "nutcracker injury"

Answer 33

os trigonum and surrounding soft tissue is crunched between the calcaneus and the talus and tibia (like and almond in a nutcracker). can lead to inflammation

Question 34

surgical joint replacement

Answer 34

arthroplasty

Question 35

What joint replacement surgery has the shortest recovery time? longest?

Answer 35

shortest is total knee, longest is total shoulder

Question 36

What other ligament of the knee joint is commonly injured by the same forces that would injure the ALL?

Answer 36

ACL

Question 37

What other ligament of the knee joint is commonly injured by the same forces that would injure the medial meniscus?

Answer 37

MCL