random

Question 1

mononucleare cells that come from bone marrow to form new bone is a …

Answer 1

osteoblasts

Question 2

example of hyaline cartilage is

Answer 2

trachea, tips of ribs

Question 3

in standard anatomical position, the ulna and radius are located

Answer 3

medial and lateral respectively

Question 4

the longitudinal modulus of an avg human femoral cortical bone is

Answer 4

17, 000 MPa

Question 5

a neck to shaft angle of less than 125

Answer 5

coxa vara

Question 6

the rigidity of an external fixator can be regulated by the following

Answer 6

• # of pins
• distance b/w bone and rod
• diameter of pins

Question 7

turning the sole medially and laterally is …

Answer 7

inversion and eversion respectively

Question 8

organic composition of bone matrix is mainly composed of

Answer 8

type 1 collagen

Question 9

example of connective tissue proper

Answer 9

articular cartilage
intervertebral disk
tendon

Question 10

the stress of a one material beam is independent of material properties when…

Answer 10

uniform xsection area
exhibits elastic behavior
applied stress is const

Question 11

the mechanical behavior of articular cartilage is a function of

Answer 11

• intrinsic, flow independent behavior of the collagen-PG matrix
• flow of interstitial fluid through the matrix and its resistance
  swelling caused by ionic phase

Question 12

during gait, the superior eccentricity of the trabecular bone within the femoral neck tends to

Answer 12

reduce internal effective moment produced by the joint contact force

Question 13

when preforming squats with a load, what type of contraction are the quads achieving when the athlete is going down?

Answer 13

eccentric contraction

Question 14

eccentric contraction

Answer 14

lengthening of muscles (downward of bicep curl)

Question 15

concentric contraction

Answer 15

shortening of muscle (upward of bicep curl)

Question 16

isometric contraction

Answer 16

holding muscles stationary when in use (pausing in curl)

Question 17

the main mechanical distinction between a tendon and ligament is …

Answer 17

ultimate tensile strain
toe region of a stress strain
stiffness of the tissue

Question 18

example of gliding joint

Answer 18

wrist joint

Question 19

cortical bone screw is distinct by the following ….

Answer 19

fine threads

Question 20

example of sesamoid bone

Answer 20

patella

Question 21

appendicular skeleton includes

Answer 21

of the upper and lower extremities, which include the shoulder girdle and pelvis

Question 22

concave curvatures within the vertebral column

Answer 22

lumbar and cervical

Question 23

convex curvatures of the vertebral column

Answer 23

sacral and thoracic

Question 24

aggregate compressive modulus of a cartilage is a ratio of…

Answer 24

equilibrium compressive stress over equilibrium compressive strain

Question 25

synovial joints may have what kind of reinforced ligament

Answer 25

intracapsular and extracapsular and ?capsular?

Question 26

what articular cartilage zone are the chondrocytes arranged in columnar fashion and perpendicular orientation?

Answer 26

deep zone

Question 27

ratio of mass to volume of the actual bone tissue ( excluding porosity) is?

Answer 27

material tissue density

Question 28

turning your head side to side is a motion about the ….. plane

Answer 28

transverse

Question 29

what type of bone is mechanically strong and formed by regular alignment of collagen into sheets 1 month after birth

Answer 29

lamellar

Question 30

for subcapital fractures, Pauwels classification of type 3 is ….

Answer 30

fracture with an obliquity ranging of 70 or more degrees

Question 31

avg tensile strain for a human tendon is

Answer 31

10-60%

Question 32

avg tensile strain for a ligament is

Answer 32

10-120%

Question 33

an example of striated and involuntary muscle tissue is

Answer 33

cardiac muscle

Question 34

two types of bone healing; primary healing is associate with

Answer 34

direct osteon bridging

Question 35

single limb stance is associated with

Answer 35

midstance, terminal stance

Question 36

dynamic hip screw is one type of hip fracture treatment; it is used under the following condition

Answer 36

extracapsular fracture
presence of shear stress

Question 37

what is a fossa

Answer 37

elongated basin

Question 38

advantage of total hip resurfacing

Answer 38

similar size to natural femoral head

Question 39

excessive posterior curvature of the thoracic region is identified as…

Answer 39

krphosis