Lecture 6 Joints

Question 1

What is arthrology?

Answer 1

The study of joints

Question 2

What is a bony joint?

Answer 2

The fusing of two bones into one

Question 3

Are suture joints movable?

Answer 3

No

Question 4

What are the three types of fibrous joint sutures?

Answer 4

Serrate, Squamous, and Butt sutures

Question 5

Which suture joint has an interlocking junction? Examples?

Answer 5

Serrate. Coronal, sagittal and lamboid sutures

Question 6

Which suture joint has a junction of two bones with overlapping beveled edges? Examples?

Answer 6

Squamous. Squamosal suture between temporal and parietal bones

Question 7

What is the name for the fribrous joint of the tooth socket? Note: PDL is part of this but is not the joint

Answer 7

Gomphoses

Question 8

Which kind of fibrous joints makes up the interosseous membrane between bones like radius and ulna and tibia and fibula?

Answer 8

Syndesmoses

Question 9

The costal cartilage involved in rib attachment to the sternum is what kind cartilaginous joint?

Answer 9

Synchondroses

Question 10

What are the slightly movable cartilaginous joints?

Answer 10

Symphyses such as intervertebral discs and the pubic symphysis made of fibrocartilage

Question 11

Which joints are the most movable type in which two bones are separated by a fluid-filled space called a joint space?

Answer 11

Synovial joints

Question 12

Which part of the synovial joint is continuous with the periosteum?

Answer 12

The joint capsule

Question 13

What is synovial fluid?

Answer 13

Viscous, slippery rich in albumin and hyaluronic acid secreted by the synovial membrane

Question 14

Articular cartilages are made of what kind of cartilage?

Answer 14

Hyaline cartilage

Question 15

What is hyaline cartilage rich in?

Answer 15

Chondroitin (a GAG)

Question 16

What is the stabilizing rim around the joint and is present in some joints including TMJ, wrist, knee and sternoclavicular?

Answer 16

Meniscus of fibrocartilage

Question 17

What are the major types of synovial joints?

Answer 17

Ball and socket, hinge, saddle, pivot, gliding, condyloid, and TMJ

Question 18

What is the broad term for joint pain and inflammation?

Answer 18

Arthritis

Question 19

What does osteoarthritis result from??

Answer 19

Years of joint wear or mechanical damage

Question 20

When articular cartilage degenerates what develops on the exposed tissue that contributes to the symptoms o osteoarthritis?

Answer 20

Bone spurs

Question 21

Which type of arthritis is an autoimmune attack on the joints?

Answer 21

Rheumatoid Arthritis

Question 22

What do immune cells attack the joints with in Rheumatoid arthritis?

Answer 22

Antibodies and enzymes

Question 23

What are tendon sheaths?

Answer 23

Tubes of synovial membrane that wrap around tendons as in the hand and foot

Question 24

What is a bursa?

Answer 24

A saclike extension of a joint capsule that extends between or around nearby tendons allowing them to slide easily past each other

Question 25

Where are bursae found?

Answer 25

Knee, shoulder, and elbow. When injured may result in bursitis

Question 26

What structure is unique to the TMJ

Answer 26

The articular disk (tissue between glenoid fossa and mandibular condyle)