general/biomech

Question 1

newtons laws

Answer 1

1-object at rest will remain so unless acted on by a force( has to overcome friction+wind resistance)
2-momentum of body= velocity x mass (heavier goes faster)
3-hamil. Important for any force passing thru body will have an same quantity of force being directed bck into the body/ tissue (muscle contraction)(ground reaction force)

Question 2

hydrostatic tissues

Answer 2

fluid filled tissues that are provided rigidity by the pressure within

Question 3

hydrostatic example

Answer 3

blood vessels, notochord

Question 4

connective tissues

Answer 4

tissues that enable the musculoskeletal system to function

Question 5

connective tissues include

Answer 5

tendons+ ligaments

cartilage+ bone

Question 6

tendons+ ligaments

Answer 6

found at points where forces occur eg (tension) ex. muscle and joint insertions
contain collagen and elastin of varying levels

Question 7

cartilage+ bone

Answer 7

cartilage- hyaline, fibrocartilage+ elastic

bone- trabecular+ cortical

Question 8

how load influences biological tissue

Answer 8

stress+ strain

Question 9

how bio tissues adapted to be efficient in energy+ force

Answer 9

torques+ levers

Question 10

stress def

Answer 10

describes load placed on structure eg. body weight

Question 11

strain

Answer 11

measure of how when stress is applied a structure deforms

Question 12

youngs modulus of elasticity (E)

Answer 12

equation for tensile strain (level of strain tolerated by structure)

Question 13

lever

Answer 13

distance between load and fulcrum(central axis)

Question 14

fulcrum

Answer 14

location around which the lever will move(

Question 15

torque

Answer 15

application of force on central axis(fulcrum)