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Organ system that gives humans the ability to move using their muscular andskeletal systems
Skeletal
MuscularJoints, ligaments
and tendons
The Musculoskeletal System
Skeletal
BONES
Structure
Functions
The bones are what gives the body shape.
Bones support our bodies.
Babies have more than 300 bones and adults have 206 bones.
Underneath your skin there are 5 types of bones in the human body. These are . . .
Long Bones
Short Bones
FlatBones
Irregular
BonesSesamoid
Bones
Long Bones
Includes having a body which is longer than it is wide.They are usually somewhat
curved for strength.The femur -a long bone
Tibia Fibula
Examples include femur, tibia, fibula, humerus, ulna and radius
Short Bones
The carpals -a short bone
Roughly cube-shaped and have approximately equal length and widthProviding support and
stability with little movement. Examples include
ankle and wrist bones
Flat Bones
The scapula -a flat bone
a thin shape/structure and provide considerable mechanical protection and extensive surfaces for muscle attachments.
Irregular
Bones
Vertebrae -irregular bones
Bones in the body which do not fall into any other category, due to their non-uniform shape. Consist of cancellous bone,
with a thin outer layer of compact bone.
Good examples of these are the Vertebrae, Sacrum and Mandible (lower jaw).
Sesamoid
Bones
The patella (knee cap) – a sesamoid bone
Short or irregular bones,imbedded in a tendon.It passes over a joint
which serves to protectthe tendon.
Examples common to everyone include the patellae (kneecaps).
What do you think we would look like without
bones?
Bones provide the framework for the body.
Bones protect the body organs.
Bone helps the body move in different directions and different ways
What is your bone made of?
A typical bone has an outer layer of hard or compact bone, which is
very strong, dense and tough!
Inside this is a layer of spongy bone, which is
like honeycomb, lighter and
slightly flexible.
In the middle of some bones is jelly-like bone marrow,
where new cells are being produced for
the blood.
Muscular
Muscles are also necessary for movement: They're the masses of tough, elastic tissue that pull our bones when we move.
Smooth Cardiac Skeletal
TYPEs
SmoothMuscle
Involved in involuntary motion, forexample the smooth muscle of theeyes helps them focus without theprompt of the nervous system.
No striations and has cells that aredescribed as spindle shaped.
Examples include stomach and bladder
CardiacMuscle
Makes up the thick, inner layer of the heart.Enables the heart muscle to pump
continuously and involuntarily without everresting.
Promotes the circulation necessary to sustainthe entire body.
SkeletalMuscle
Called striated muscle is part of what comprises the musculoskeletal
system, which connects muscles and bones for voluntary body movements.
Attached to both ends of a bone by the tendons.
Joints, ligaments and tendons
Joints Ligaments Tendons
The ones between the carpals of the wrist, are found where bones meet as flat surfaces
Allow for the bones to glide past one another in any direction.
Are where two or more bones meet; They allow you to move.
Such as the one between the first metacarpal and trapezium bone, permit 360 degree motion by allowing the bones to pivot along two axes.
Such as the elbow and knee, limit movement in only one direction so that the angle between bones can increase or decrease at the joint.
Form the only ball and socket joints in the body.
Have the freest range of motion of any joint in the body – they are the only joints that can move in a full circle and rotate around their axis.
Fibrous connective
tissue which
attaches muscle to
bone.
Fibrous connective
tissue which
attaches bone to
bone