Muscles Chapter 10 Fasicle arrangement Physics of levers.

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Presentation transcript:

Muscles Chapter 10

Fasicle arrangement

Physics of levers

Torque Torque = Force x Lever length or   l

A human example

There are 3 types of lever systems 1.First Class - fulcrum between load and effort 2.Second Class - load is between fulcrum and effort 3.Third Class - effort is between load and fulcrum

First Class Lever Systems The classic “see-saw” or teeter totter of your youth

Second Class Lever Systems

Third Class Lever Systems Most muscle/joint systems fall into this catagory

Muscles: anterior

Muscles: posterior

Muscles of the Hip & Thigh (anterior view)

The Adductor brevis

The Gluteus minimus

The erector spinae Erector spinae

Up next … Nervous System Histology

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