1,2 chapters
Mechanical principles that relate directly to the human body
What is biomechanics
refers to the loss of bone density or bone mass
what is Osteoporosis
Generally this occurs because the distal end of the muscle (its insertion site) is stabilized so the origin site
moves towards the insertion site
what is reverse muscle action
Isometric
A wall-sit is an example of what type of contraction
newton first law An object at rest remains at rest, and an object in motion remains in motion at constant
what describes inertia
the abdominals are blank to the back
what is Anterior
joint describes the articulation of the distal fibula and tibia.
what is syndesmotic
false- Remember parallel muscles are better at range of motions
True or False. Parallel muscles produce more force.
responsible for motor movement. (They take messages from the CNS to the periphery of
the body)
what is Efferent nerves
by separating their legs which widens the base and the center of gravity is lowered to the floor and the individual becomes more stable.
how would individuals increase there base of support
material gives bone hardness and strength.
what is Inorganic
occurs when muscle bulk is compressed e.g., elbow flexion of bicep cur
what is soft end feel
Elasticity
Extensibility
Irritability
Ability to develop tension
What are the 4 functional characteristics of muscle tissue?
esponsible for sensory information. (They take messages from the periphery to the
CNS.)
Afferent nerves
is when the axis is located between the force and resistance.
what is first class levers
as nerves and bone vessels so it can help the bone repair. It can also allow for ligamentous and tendinous attachment.
what is the Periosteum
boggy, Muscle spasm,Empty end feel,Springy block
What is abnormal end feel
Calcium binds to troponinTroponin is then “activated” and can force tropomyosin to get out of the way Once tropomyosin moves, the binding sites on actin are“open” Energy is released which allows: Myosin heads attach to the binding sites on actin. Myosin head to pull the actin (which slides past) (Concentric) Contraction occurs as actin filaments move past each other (sarcomere
shortens)
Describe sliding filament theory.
Lymphatic System
Cardiovascular System
What are the two transport systems
is when the resistance is in the middle and the axis is at one end eg a wheelbarrow carrying a load.
what is second class levers
It provides a space for articulating bone or muscles to be. (E.g. supraspinous fossa allows the supraspinatus
muscle to sit flush against the scapula.
what is fossa
1. it will glide on a fixed convex surface in the same direction as the distal portion of the same bone.
2. it will glide on a fixed concave surface in the opposite direction as the distal end of the moving bone.
1. what is concave
2. what is convex
Excursion
What term describes the distance from maximal shortening to maximal lengthening?
Atrium = More superior
Ventricles = More inferior
Describe the chambers of the heart.
is when the force in the middle with resistance and the axis at the opposite ends.
what is third class levers