JOINTS

Question 1

What’s the only bone that doesn’t have a joint?

Answer 1

Hyoid bone neck

Question 2

Synarthroses

Answer 2

are immovable joints

Question 3

Amphiarthroses

Answer 3

are slightly movable joints

Question 4

Diarthroses

Answer 4

are freely movable joints

Question 5

What are Fibrous Joints?

Answer 5

Bone that are united by fibrous tissue
(sutures of the skull)

Question 6

What are Synovial joints?

Answer 6

Those in which the articulating bone ends are separated by a joint cavity containing Synovial fluid

Question 7

Are Synovial joints freely movable?

Answer 7

yes

Question 8

What are 2 of the 4 features of a Synovial joint that you need to know?

Answer 8

1. articulating cartilage
2. fibrous articular capsule

Question 9

what is articulating cartilage?

Answer 9

a type of cartilage which covers the ends of the bones forming the joint

Question 10

what is the fibrous articular capsule

Answer 10

the joint surfaces are enclosed by a sleeve or capsule of fibrous connective tissue.
the capsule is lined with a smooth Synovial membrane

Question 11

What is the Bursae?

Answer 11

flattened fibrous sacs lined with Synovial membrane and containing a thin film of synovial fluid

Question 12

What is the tendon sheath?

Answer 12

an elongated bursa which wraps completely around a tendon subjected to friction

Question 13

plain joint

Answer 13

glides
wrist
nonaxial

Question 14

hinge joint (elbow)

Answer 14

-the cylindrical end of one bone fits into a tough-shaped surface of another bone
-angular movement is allowed in one plane
-uniaxial

Question 15

pivot joint

Answer 15

-rounded end of the bone fits into a sleeve or ring of bone
-uniaxial

Question 16

condyloid joint

Answer 16

knuckle
bi axial
forms egg shaped articular surface of one bone fits into a oval concavity in another bone
-allow the moving bone to travel from side to side and also back and forth

Question 17

ball and socket joint

Answer 17

multiaxial

Question 18

what are sprains?

Answer 18

result when ligaments reinforcing a joint are stretched or torn

Question 19

common sprain areas

Answer 19

lumbar region of spine
ankle
knee

Question 20

Dislocations or luxation

Answer 20

occur when bones are forced out of alignment
sprains, inflammation

Question 21

saddle joint

Answer 21

thumb
biaxial

Question 22

example of a cartilage injury

Answer 22

tearing of the menisci
semilunar cartilage pad
stays torn bec its avascular

Question 23

what is arthroscopic suguery?

Answer 23

removal of central nonvascular part of damaged cartilage

Question 24

what is bursitis?

Answer 24

inflammation of a Bursae usually caused by a blow or friction
can be caused by leaning on one’s elbow damaging the Bursae close to the olecranon process

Question 25

what is tendinitis?

Answer 25

inflammation of tendon sheaths typically caused by overuse
treatment- rest, ice, antiinflammatory drugs

Question 26

what is arthritis

Answer 26

disease that damage the joints
affects 1/7 americans

Question 27

what is osteoarthritis?

Answer 27

the most common chronic long term arthritis.
wear and tear arthritis
most prevalent in the aged
not always inflammatory

Question 28

what is rheumatoid arthritis?

Answer 28

the initial trigger of this reaction is unknown but the streptococcus bacterium and viruses have been suspect