Musculoskeletal and Nerve Trauma Flashcards Preview

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Flashcards in Musculoskeletal and Nerve Trauma Deck (53)
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1

What is Trauma

produced by some sort of force. internal, or external.

2

What is a Mechanical Injury?

Force that changes the structure of a muscle/tendons/ligament.

3

What are the properties of tissues?

Load
Stiffness
Stress
Strain

4

What is Load (tissue Property)

external force causes reaction within the tissues

5

What is stiffness (tissue property)

ability of a tissue to resist a load.

6

What is stress (tissue property)

internal resistance to load

7

What is Strain (tissue property)

internal change in tissue

8

What is Creep?

a deformation in shape. creep is a constant force/strain

9

What are the components of tissue loading?

Tension, compression, shearing (across the fibers)

10

Traumatic Injury

direct blow

11

Overuse Injury

repetitive dynamic use over time

12

Musculotendinous Injuries

High incidence in athletics. composed of contractile cells that produce movement.

13

What characteristics does a musculotendinous unit posses?

irritability, contractility, conductivity, elasticity.

14

What are the three types of muscle?

cardiac, smooth, striated

15

What is a muscle strain?

A stretch, rip, or rear to muscle or adjacent tissue.

16

What is the cause of a muscle strain?

1)failure in reciprocal coordination of agonist and antagonist. 2)electrolyte imbalance due to profuse sweating 3) strength imbalance.

17

Grade I Muscle Strain

some fibers have been stretched or torn resulting in tenderness and pain on active ROM, movement painful but full ROM present

18

Grade II Muscle Strain

Number of fibers have been torn and active contraction is painful, usually a depression or divot is palpable, some swelling and discoloration result

19

Grade III Muscle Strain

Complete Rupture of muscle or musculotendinous junction, significant impairment, with initially a great deal of pain that diminishes due to nerve damage.

20

How long should treatment of a muscle strain last?

6-8 weeks. Return to play too soon could result in major injury.

21

What is a Muscle Cramp?

Painful involuntary skeletal muscle contraction. Occurs in well-developed individuals when muscle is in shortened position. can be experienced at night, or at rest.

22

What is Muscle Guarding?

Following injury, muscles within an effected area contract to splint the area in an effort to minimize pain through limitations in motion

23

What is a Muscle Spasm?

A reflex caused by trauma.

24

What is a Clonic Muscle Spasm?

alternating involuntary muscular contractions and relaxations in quick succession

25

What is a Tonic Muscle Spasm?

Rigid Contraction that lasts a period of time

26

What is Muscle Soreness?

Overexertion in strenuous exercise resulting in muscular pain.

27

What are the two types of muscle soreness?

Acute-onset muscle soreness
Delayed-onset muscle soreness

28

What is the breaking point of a tendon?

6-8% increased length. tears generally occur in the muscle, not the tendon.

29

What is the most susceptible tendon to injury?

Achillies

30

What is tendonitis?

inflammation of the tendon