Articulations

Question 1

True or False:

All cartilaginous joints are diarthrotic? (Freely movable)

Answer 1

True

Question 2

The sacrum in an adult can be functionally classified as:

Answer 2

Synarthrosis [immovably fixed joint]

Question 3

the fluid filled sacs cushioning synovial joints are:

Answer 3

bursae

Question 4

structural joint classification

Answer 4

according to presence of tissue between articulating bones

Question 5

bony fusion

Answer 5

articulating bones fused together and become immovable, synarthrotic joints; such as in coxal bones which fuse around age 12-20

Question 6

fibrous joints

Answer 6

Dense CT between articulating bones

can be immovable or slightly movable

ex) between cranial sutures, sacrum, and coxal

Question 7

cartilaginous bones

Answer 7

separated by cartilage (fibro or hyaline)

can be movable (epiphyseal plates of bones) or immovable (discs between vertebral joints)

Question 8

synovial joints

Answer 8

have synovial fluid-filled joint cavity lined with synovial membrane

-highly moveable : glenohumeral, sternoclavicular, coxal femoral

Question 9

functional joint classification

Answer 9

according to the degree of movement allowed between articulating bones

Question 10

synarthrotic joints

Answer 10

2 bones with immovable position in relation to eachother

ex) suture, teeth/jaw bones..

Question 11

amphiarthrotic joints

Answer 11

2 bones with slightly movable positions in relation to eachother

ex) pubic symphasis, fibia and tibia fibrous connection

Question 12

diarthrotic joints

Answer 12

2 bones with freely movable positions in relation to eachother

[all synovial joints]

ex) elbow, shoulder

Question 13

interverbretal discs

& what are they composed of?

Answer 13

permit smooth gliding motions of vertebral column during flex, extension, rotation..

composed of

1) annulus fibrosus (soft disc center)
2) nucleus pulposas (shock absorber)

Question 14

Label A, B, and C

Answer 14

a: interverbretal disc

b: annulus fibrosus

c: nucleus pulposas

Question 15

Identify A and B

Answer 15

A: posterior longitudinal ligament

B: anterior longitudinal ligament

Question 16

identify A and B

Answer 16

A: interspinous ligament

B: supraspinous ligament

Question 17

identify this joint

Answer 17

knee joints (tibiofemoral joint)

Question 17

extracapsular ligaments include the:

Answer 17

quadriceps tendon/ patellar ligament

tibial collateral ligament (medial collateral ligament MCL)

fibular collateral ligament (lateral collateral ligament LCL)

Question 18

identify A and B

Answer 18

A: quadriceps tendon
B: patellar ligament

Question 19

identify C

Answer 19

medial (tibial) collateral ligament - MCL

Question 20

identify D

Answer 20

lateral (fibular) collateral ligament LCL

Question 21

intracapsular ligaments

Answer 21

set of 2 ligaments - anterior and posterior cruciate ligaments (ACL, PCL)

Question 22

identify A

Answer 22

anterior cruciate ligament (ACL)

Question 23

[posterior knee] identify A

Answer 23

posterior cruciate ligament (PCL)

Question 24

meniscus (medial and lateral)

Answer 24

fibrocartilage disc/pad that helps to shape the knee joint / help fit the femur and tibia fit together

Question 25

identify B

Answer 25

medial meniscus

Question 26

identify c

Answer 26

medial meniscus

Question 27

Bursa

Answer 27

synovial membrane- sac with synovial fluid that helps increase padding and reduce rubbing

Question 28

identify A

Answer 28

suprapatellar bursae

Question 29

identify A

Answer 29

infrapatellar fat pad

Question 30

ankle joint (talocrural joint)

Answer 30

tibia, fibula, and talus join

Question 31

tibiofibular joint (high ankle joint) What kind of joint is it specifically?

Answer 31

fibrous amphiarthrotic joint -above talus

Question 32

identify A

Answer 32

anterior and posterior tibiofibular ligaments

Question 33

identify where it is pointing

Answer 33

interosseous membrane

Question 34

talocrural joint (low ankle joint)- what kind of joint is it more specifically?

Answer 34

synovial hinge joint

Question 35

identify A and B

Answer 35

anterior and posterior talofibular ligaments

Question 36

identify C

Answer 36

calcaneofibular ligament

Question 37

identify A (inner foot)

Answer 37

medial/deltoid ligament

Question 38

glenohumeral joint

Answer 38

shoulder joint; diarthrotic ball and socket joint -most frequently dislocated

Question 39

glenoid labrum

Answer 39

fibrocartilage supporting structure around the glenoid

Question 40

identify A

Answer 40

coracoacromial ligament

Question 41

identify B

Answer 41

acromioclavicular ligament

Question 42

identify C

Answer 42

coracoclavicular ligaments

Question 43

Shoulder muscles "SITS"

Answer 43

supraspinatus infraspinatus teres minor subscapularis

Question 44

identify A, B, C

Answer 44

supraspinatus infraspinatus teres minor

Question 45

B

Answer 45

biceps brachii tendons

Question 46

A

Answer 46

triceps brachii tendons

Question 47

Decreasing the angle between bones is called:

Answer 47

flexion

Question 48

The joint that permits the greatest range of mobility of any joint in the body is the:

Answer 48

shoulder

Question 49

The joint that permits the greatest range of mobility of any joint in the body is the:

Answer 49

shoulder

Question 50

Which ligament(s) prevent backward displacement of the tibia or forward sliding of the femur?

Answer 50

cruciate (ACL)

Question 51

Synovial fluid functions :

Answer 51

lubrication shock absorption protect articular cartilages

Question 52

opposition is only possible at the :

Answer 52

thumb

Question 53

________ has a joint cavity

Answer 53

the knee

Question 54

The primary stabilizing structure(s) of the shoulder joint is/are:

Answer 54

the tendons of the "rotator cuff" muscles

Question 55

If you straighten your leg at the knee to kick a soccer ball, you are performing:

Answer 55

extension of the leg at the knee

Question 56

The intervertebral articulations include both ________ and _________ joints.

Answer 56

cartilagenous and synovial

Question 57

most mobile joint are-

Answer 57

ball and socket joints

Question 57

most mobile joint are-

Answer 57

ball and socket joints

Question 58

identify a

Answer 58

acromioclavicular ligament

Question 59

identify b

Answer 59

coracoacromial ligament

Question 60

identify c

Answer 60

coracoclavicular ligament

Question 61

identify the muscle

Answer 61

subscapularis