Articulations (Joint Functions)

Question 1

What are the three classifications of a suture joint?

Answer 1

1. Bones interlocked
2. Bound by fibrous connective tissue
3. Only in skull

Question 2

What classifies a synchondroses joint?

Answer 2

1. Cartilaginous bridge between bones

Question 3

What classifies a syndesmoses joint?

Answer 3

1. Bone connected by ligaments

Question 4

What classifies a symphyses joint?

Answer 4

1. Bones separated by fibrocartilage

Question 5

Define the GLIDING movement of synovial joints.

Answer 5

Opposing surfaces sliding past one another (bones)

Question 6

Define the ANGULAR movement of synovial joints.

Answer 6

Two joints forming an angle

Question 7

Define the FLEXION angular movement.

Answer 7

Reducing angle between joints

Question 8

Define the EXTENSION angular movement.

Answer 8

Increasing angle between joints

Question 9

Define the ABDUCTION angular movement.

Answer 9

Limb moves away from midline

Question 10

Define the ADDUCTION angular movement.

Answer 10

limb moves toward midline

Question 11

Define the CIRCUMDUCTION angular movement.

Answer 11

Circular motion without rotation

Question 12

Define the ROTATION angular movement.

Answer 12

Limb rotates on an axis

Question 13

Define the supination movement.

Answer 13

Rotating in/down (forearm)

Question 14

Define the pronation movement.

Answer 14

Rotating out/up (forearm)

Question 15

Define the medial rotation movement.

Answer 15

Internal; rotates toward axis

Question 16

Define the lateral rotation movement.

Answer 16

External; rotates away from axis

Question 17

Define the elevation movement.

Answer 17

Moved in superior direction (up)

Question 18

Define depression movement.

Answer 18

Moves in inferior direction (down)

Question 19

Define the protraction movement.

Answer 19

Pushing forward (mandible)

Question 20

Define the retraction movement.

Answer 20

Pulling back (mandible)

Question 21

Define the inversion movement at synovial joints.

Answer 21

Ankle twist toward midline (medially)

Question 22

Define the eversion movement at synovial joints.

Answer 22

Ankle twist away from midline (laterally)

Question 23

Define the dorsiflexion movement at synovial joints.

Answer 23

Flexion at ankle (lifting toes)

Question 24

Define the plantar flexion movement at synovial joints.

Answer 24

Extension at ankle (pointing toes)

Question 25

Define the fibular collateral ligament of the knee joint.

Answer 25

1. Fibrous band of tissue on the OUTSIDE of the knee 2. Connects femur to fibula

Question 26

Define the tibial collateral ligament of the knee joint.

Answer 26

1. Fibrous band of tissue on the INSIDE of the knee 2. Connects femur to tibia

Question 27

Define the anterior cruciate ligament (ACL) of the knee joint.

Answer 27

Most anterior tissue located inside the knee.

Question 28

Define the posterior cruciate ligament of the knee joint.

Answer 28

Most posterior tissue inside the knee.

Question 29

Define the lateral meniscus of the knee joint.

Answer 29

C-shaped cartilage disc on the outside (lateral/fibula)

Question 30

Define the medial meniscus of the knee joint

Answer 30

C-shaped cartilage disc on the inside of the knee (medial/tibia)