General Anatomy- Some Joints

Question 1

TMJ- classification, innervation, movement

Answer 1

Compound hinge + gliding jt (covered by fibrocartilage- more resistant to damage)

Intra articular disc separates an upper and lower compartment

inn. Auriculotemporal, deep temporal, mesenteric branches of CNv3

Question 2

Where does protraction + retraction and elevation + depression occur in the TMJ

Answer 2

Upper- protraction and retraction

Lower- elevation and depression

Question 3

What inn the glenohumeral jt

Answer 3

Axillary and suprascap n

Question 4

Sternoclavivular jt- type, classification, inn

Answer 4

type- synovial with an intra articular disc

Classification- saddle type but behaves like ball and socket

inn- medial branch of supraclavicular nerves C3

Question 5

Elbow jt type, classification and inn

Answer 5

type- synovial
classification- hinge
innervation- radial and musculocutaneous nerves

Question 6

Prox + distal radioulnar jts - type, classification, inn

Answer 6

synovial pivot jt

inn- median, ulnar and radial

Question 7

Wrist jt- type, classification, inn

Answer 7

synovial
condyloid

inn. radial, medial, ulnar

Question 8

1st carpometacarpal jt- type, classification, inn, bones involved

Answer 8

synovial saddle type joint

Trapezium + 1st metacarpal bone
Inn- radial and median nerves

Question 9

metacarpophalangeal jt- type, classification, inn

Answer 9

synovial condyloid jt

Inn- median, ulnar and radial

Question 10

What mm adducts/abducts the mcps

Answer 10

add- palmar interossei (PAD)

Abduction- dorsal interossei (DAB)

Question 11

Interphalangeal jt- type, classification, inn

Answer 11

synovial hinge jt

inn- median, ulnar and radial nerves

Question 12

Hip joint type, classification and inn

Answer 12

Synovial ball and socket

inn- femoral, obturator and nerve to quadrates femoris

Question 13

What is the intra articular lig of the hip jt (+ what does it contain)

Answer 13

round lig of tea of the femur- from transverse acetabular lig and the rim of acetabular notch to fovea centralis

Question 14

What are the extra articular ligs of the hip jt (+what do each limit/run from)

Answer 14

1. Iliofemoral- asis to femoral neck (prevents hyperext)
2. Pubofemoral- sup pubic ramus to lower capsule (prevents hyperabduction)
3. Ischiofemoral- ischium to post part of capsule (prevents hyperextension)

Question 15

Knee joint- type, classification, inn

Answer 15

Synovial modified hinge

inn- femoral, tibial, common peroneal

Question 16

acl and mcl- origin + insertion

Answer 16

ACL- ant part of intercondylar ridge and attached to post medial aspect of lat condyle of femur

PCL- post part of intercondylar ridge to lat aspect of medial condyle of femur

Question 17

what is the medial meniscus attached to

Answer 17

attached to MCL
semilunar shape

Question 18

Ankle joint type, classification and innervation

Answer 18

synovial hinge joint
inn- tibial and deep perineal nerves