Joints of the Thoracic Limb Outline

Question 1

What are some types of joints?

Answer 1

Fibrous, Cartilaginous, Synchondrosis, Symphysis (fibrocartilaginous) and Synovial

Question 2

Where is one place Fibrous joints are found in the body

Answer 2

sutures of the skull

Question 3

Where are two places synchondrosis joints are found

Answer 3

Juvenile long bones (growth plate areas) and skull/hyoid apparatus

Question 4

Where are three places where Symphysis/fibrocartilaginous joints are found

Answer 4

Pelvis, Mandible, intervertebral disc

Question 5

What is “better” in synovial joints compared to others

Answer 5

they are more moveable

Question 6

What is unique about the synovial joint

Answer 6

it is a fluid filled cavity between bones

Question 7

What is the joint cavity filled with

Answer 7

synovial fluid (lubricant)

Question 8

What is the cartilage inside the joint that prevents the bones from rubbing against one another

Answer 8

Articular (hyaline) cartilage

Question 9

What two parts make up the outer layers of the joint capsule

Answer 9

Synovial membrane (innermost) and the fibrous layer (outermost)

Question 10

What two bones does the shoulder joint link?

Answer 10

Scapula and Humerus

Question 11

What type of synovial joint is the shoulder

Answer 11

Ball and socket

Question 12

What type of movement does the shoulder allow?

Answer 12

Flexion and Extension (sagittal movement)

Question 13

What does the joint capsule of the shoulder joint fuse with for stability?

Answer 13

muscular tendons

Question 14

What does the Medial/Lateral Glenohumeral Ligaments help in the shoulder?

Answer 14

stabilizes the joint

Question 15

What is the Elbow joint formed by

Answer 15

Condyle of humerus, head of radius, and trochlear notch of the ulna

Question 16

What type of joint is the elbow?

Answer 16

Hinge joint

Question 17

What type of movement does the elbow allow

Answer 17

Flexion and extension (Sagittal movement)

Question 18

What does the Lateral/Medial Collateral ligaments do for the elbow ?

Answer 18

Stabilize joint

Question 19

What does the lateral/medial collateral ligaments of the elbow prevent?

Answer 19

adduction (moving closer to the body) or abduction (moving away from the body)

Question 20

What does the lateral / medial collateral ligaments attach together in the elbow

Answer 20

humerus to the radius

Question 21

What does the annular ligament of the elbow do?

Answer 21

encloses the head of the radius and attaches radius to the ulna

Question 22

What does the Interosseous ligament unite in the elbow?

Answer 22

radius and ulna

Question 23

What type of joint is the carpal joint

Answer 23

hinge

Question 24

How many articular levels does the carpal joints have

Answer 24

3

Question 25

What are the 3 articular levels of the carpal joint

Answer 25

1.) Proximal antebrachiocarpal joint
2.) Middle Carpal Joint
3.) Carpometacarpal Joint

Question 26

What does the Proximal antebrachiocarpal joint have articulations between what?

Answer 26

the radius/ulna and the ulnar carpal bone as well as the intermedioradial bone (r=i)

Question 27

What does the Proximal Antebrachiocarpal Joint allows for what in the carpal joint?

Answer 27

significant movement

Question 28

What does the Middle Carpal Joint join

Answer 28

the two rows of carpal bones

Question 29

How much movement does the middle carpal joint allow in the carpal joint

Answer 29

Movement possible

Question 30

Where is the Carpometacarpal Joint located between?

Answer 30

Between distal row of carpal bones and the metacarpals

Question 31

How much movement is in the Carpometacarpal Joint?

Answer 31

No Movement!

Question 32

What does the Lateral and Medial Collateral Ligaments of the carpal joint join?

Answer 32

Joins the carpal bones laterally and medially (lateral and medial stabilization)

Question 33

What does the Palmar Carpal Ligament of the Carpal Joint cover?

Answer 33

Covers the entire palmar surface of the carpus

Question 34

What does the Palmar Carpal Ligament prevent?

Answer 34

Prevents collapse of the carpus during weight bearing

Question 35

What does the Flexor Retinaculum of the carpal joint connect

Answer 35

connects the accessory carpal bone to the medial aspect of the carpus (whole joint)

Question 36

What does the Distal Accessory Ligament of the carpal joint join

Answer 36

joins the accessory carpal bone to its adjacent carpal and metacarpal bones

Question 37

Where is the Metacarpophalangeal Joint located between (phalanges)

Answer 37

between the metacarpal and the proximal phalanx

Question 38

Where is the Proximal Interphalangeal joint located between (phalanges)

Answer 38

Between the proximal and middle phalanx

Question 39

Where is the distal Interphalangeal joint located between (phalanges)

Answer 39

Between the middle and distal phalanx