Lecture 5 - Appendicular Skeleton and Joints

Question 1

what is the importance and name of LCL?

Answer 1

lateral collateral ligament, prevent movement laterally

Question 2

LCL attaches to what bone?

Answer 2

fibula

Question 3

MCL attaches to what bone?

Answer 3

tibia

Question 4

what is the importance and name of MCL?

Answer 4

medial collateral ligament, prevent movement medially

Question 5

what is the importance and name of ACL?

Answer 5

anterior cruciate ligament, prevent movement forward

Question 6

what is the importance and name of PCL?

Answer 6

posterior cruciate ligament, prevent movement backward

Question 7

the articulation of the femur and tibia is called….

Answer 7

femoral tibial joint

Question 8

the articulation of the glenoid cavity and the humerus is called….

Answer 8

glenohumeral joint

Question 9

the articulation of the head of femur and acetabulum of the pelvis is called….

Answer 9

acteabulofemoral joint

Question 10

what is synovial fluid?

Answer 10

the thick liquid located between joints which cushions and lubricates the end of bones to reduces friction

Question 11

what are the names and functions of two mensici in the knee?

Answer 11

• medial and lateral meniscus
• help deepen knee joint and helps with stabilization

Question 12

what is the importance of the cruciate ligaments?

Answer 12

• the cruciate ligaments act as restraining straps to prevent undesirable movements at the knee joint
• the anterior cruciate helps prevent anterior sliding of the tibia.
• the posterior cruciate (stronger than ACL) prevents forward sliding of the femur or backward displacement of the tibia

Question 13

small fluid-filled sacs that reduce friction between moving parts in your body’s joints

Answer 13

bursas

Question 14

an envelope surrounding a synovial joint

Answer 14

joint capsule

Question 15

the elbow joint is also called….

Answer 15

humeroulnar joint