Muscles And Skeleton Flashcards
The scapula is also known as the
Shoulder blade
Curves of the spine, top to bottom
Cervical
Thoracic
Lumbar
Sacrum
The axial skeleton consists of
The midline of the body
6 types of joints
Pivot gliding Ball and socket Hinge Saddle Condyloid
Functions of the muscular system
Allows movement
Maintains posture
Allows essential body functions
Production of body heat
Types of muscles
Smooth
Skeletal
Cardiac
Smooth muscles
Involuntary
Blood vessels
Cardiac
Involuntary
Heart
Skeletal
Voluntary
Quad, bicep
Agonist
Primary muscle
Muscle creating the movement
Antagonist
Secondary muscle
The muscle relaxing
Stabilizer
Hold your body parts in place
Concentric movement
Muscle shortens
Against gravity
Eccentric movement
Muscle lengthens
With gravity
Isometric
Muscle contracts but does not shorten
2 types of fibre arrangements
Fusiform and pennate
Benefits of fusiform
Greater range of movement
Disadvantages of fusiform
Less force development
Benefits if pennate
Greater force development
Disadvantages of pennate
Less range of movement
Slow twitch fibers
Red
Endurance
Fast twitch
White
Sprint
Functions of the skeleton
Support Movement Blood cell production Store minerals Protection
Medial
Towards the midline of the body
Lateral
Away from the midline of the body
Superior
Towards the skull
Inferior
Down the body
Posterior
Back
Anterior
Front
3 types of joints
Fibrous(immoveable)
Cartilagenous (partially moveable)
Synovial (freely moveable)
Flex ion
Decrease in the angle if the joint
Extension
Increase in the angle of the joint
Abduction
Taking a body part away from the midline
Addiction
Bringing a body part back to the midline
Circumduction
Movement resulting in a cone shape
Rotation
Rotation around the axis
What bones make up the axial skeleton
Cranium Vertebrae Sternum Ribs Pelvis
