Biomechanics All Quizzes Review

Question 1

Bone is highly vascular … T/F?

Answer 1

True

Question 2

A Metatarsal is considered what type of bone?

Answer 2

long bone

Question 3

the epiphyseal plate primarily consists of what type of cartilage

Answer 3

hyaline cartilage

Question 4

biomechanics of human motion most often focuses on what kind of mechanics?

Answer 4

rigid-body mechanics

Question 5

T/F … Kinematics primarily focus on changes in motion.

Answer 5

False

Question 6

Two specific areas where the endosteum is located?

Answer 6

1. medullary cavity

2. Haversian canal

Question 7

Describe a synchondroses joint

Answer 7

a. growth plate

b. hyaline cartilage

Question 8

name the most abundant type of cartilage in the human body

Answer 8

fibrous cartilage

Question 9

4 essential components of a synovial joint

Answer 9

1. synovial fluid
2. synovial membrane
3. joint
4. articular cartilage

Question 10

identify a specific sesamoid bone and describe 2 functions

Answer 10

a. patella

b. protects tendon + mechanical advantage

Question 11

a saddle type joint is considered what kind of “axial”

Answer 11

biaxial

Question 12

provide nam of space where osteocytes are located

Answer 12

Lacunae

Question 13

T/F … lamellae are located in both compact and spongy bone.

Answer 13

True

Question 14

The metacarpophalangeal joints of digits #2-5 are classified as:

Answer 14

condyloid

Question 15

Describe Wolff’s law:

Answer 15

With increased loads, bone becomes stronger.

Bone remodels itself when needing to adjust to more forces.

Question 16

Bone is comprised of % water?

Answer 16

15%

Question 17

T/F … bones are strongest under tensile loads.

Answer 17

False

Question 18

describe primary purpose of canaliculi.

Answer 18

To communicate between osteocytes.

Question 19

Bending is a combination of what 2 forces:

Answer 19

1. compression

2. tension

Question 20

T/F … linear motion occurs when all points on a body or object move the same distances, in the same direction, and at the same time around axis of rotation.

Answer 20

False

Question 21

Tendon and ligament have similar ability to resist certain loads. name one that is slightly superior.

Answer 21

Tendon

Question 22

how does hyaline cartilage get its nutrition?

Answer 22

diffusion 
compression
joint loading 
synovial fluid 
(all)

Question 23

T/F … force has magnitude but not direction

Answer 23

False

Question 24

Newton’s third law

Answer 24

Every action has an equal and opposite reaction.

Question 25

T/F … internal ligament forces produce a tensile force on the bone.

Answer 25

True

Question 26

T/F … a “slide” is when a single point on one articular surface contacts multiple points on another articular surface

Answer 26

True

Question 27

For shoulder / glenohumoral joint – identify axis of rotation for

a. flexion / extension
b. abduction / adduction

Answer 27

a. Medial/Lateral

b. Anterior/Posterior

Question 28

equation for torque:

Answer 28

T = F*MA

Question 29

What is excursion of the horizontal plane if patient has 45* of GH internal rotation and 40* of external?

Answer 29

85*

Question 30

Normal angle of inclination for proximal femur

Answer 30

15*

Question 31

T/F … intertrochanteric line is located on posterior aspect of femur

Answer 31

True

Question 32

Name the hole in head of femur for blood supply

Answer 32

fovea capitus

Question 33

Femoral torsion is a measurement of angulation of proximal femur in what plane?

Answer 33

transverse

Question 34

If patient presents with R hip pain and shortening of R limb, diagnosis would be:

Answer 34

coxa vara