chapter 3 bones

Question 1

what are fiberous tissues

Answer 1

has thin layer of fibrous periosteum b/n the bones
3 types of Fibrous Joints:
Synarthrosis
Syndesmosis
Gomphosis

Question 2

what is synarthrosis and function

Answer 2

its a fibrous joint and Suture joint
Ends interlock
No motion
Provides shape & strength
Example = skull sutures

Question 3

the function of the cartilaginous joint

Answer 3

has hyaline cartilage or fribrocartilage b/n the bones, Slight movement , Provide stability
Absorb shock

Question 4

what is syndemosis and function

Answer 4

Ligament joint
Very little to no motion
Provides shape & strength like between the fibula and tiba

Question 5

what are joint made of

Answer 5

Fibrous tissue layer
Synovial membrane

Question 6

define non axial

Answer 6

Movement is usually linear instead of angular
Gliding Motion, Accessory Motion only

Question 7

examples of unaxial joint

Answer 7

the hinge joint and pivot joint only one motion in one plane

Question 8

what are the two surfaces of biaxial

Answer 8

condyloid and sellar

Question 9

define condyloid

Answer 9

Concave surface slides over a convex surface

Question 10

define sellar

Answer 10

Each surface convex in one plane & concave in the other

Question 11

what does sagittal plane mean

Answer 11

Divides body into right/left
Flex/ext occur in sagittal plane

Question 12

what does frontal plane mean

Answer 12

Divides body into anterior/posterior
Abduction/adduction occur in frontal plane

Question 13

what does the traverse plane mean

Answer 13

Divides body into superior/inferior
I/R & E/R occur in transverse plane

Question 14

sagittal axis direction

Answer 14

runs from front to back

Question 15

frontal axis direction

Answer 15

runs from side to side

Question 16

Vertical/ Longitudinal Axis direction

Answer 16

runs from top to bottom

Question 17

the main function of the capsular ligaments

Answer 17

Surround a joint

hold together the 2 bones that make up a joint

Made up of fibrous connective tissue

Provide attachments for cartilage, fascia, and sometimes muscles

Flexible to allow motion, but NOT elastic to ensure bones say close to each other
Prevent excessive joint movement

Question 18

what does the outer layer do of the joint capsule

Answer 18

made of fibrous tissue
Provides support & protection to joint
Reinforced by ligaments

Question 19

what does the inner layer of the joint capsule do

Answer 19

Lined with synovial membrane
Synovial membrane is thick, vascular connective tissue

Synovial membrane secretes synovial fluid

Synovial fluid lubricates the articular cartilage & decreases friction to allow joint motion; also provides some shock absorption

Question 20

what are the three types of cartilages

Answer 20

Hyaline/Articular Cartilage, Fibrocartilage, Elastic

Question 21

the function of the elastic cartilages

Answer 21

Designed to maintain shape of structure i.e. ear

Question 22

the function of hyaline cartilage

Answer 22

Covers ends of bones; No blood or nerve supply – gets all nutrition from synovial fluid

Question 23

the fibrocartilage how it works?

Answer 23

Shock absorber

Question 24

the meaning of sprain?

Answer 24

partial or complete tearing of fibers of a ligament

Question 25

the meaning of strain?

Answer 25

overstretching of muscle fibers

Question 26

subluxation meaning?

Answer 26

partial dislocation of a joint

Question 27

what does the tendon sheaths do ?

Answer 27

fibrous sleeves that surround a tendon which would experience pressure or friction as it passes through muscles or bone

Question 28

what is the linea alba?

Answer 28

aponeurosis that attaches the right and left abdominal muscles in the midline of the anterior trunk

Question 29

what does tenosynethsis?

Answer 29

inflammation of tendon sheath

Question 30

what does synovitis?

Answer 30

inflammation of synovial membrane