Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

BONES

No description
by

Caitlin Stover

on 8 October 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of BONES

Running or high impact activity will cause cartilage in the joints to disappear.
Over time, all physical activity will cause arthritis and other joint problems
BONES
JOINTS
SKELETAL MUSCLE
Support
Protection
Links between joints
Sites for Attachment
Physiological Functions
mineral storage
Mechanical Functions

The original DIY Repairmen: Your bones!
Spongy Bone
AKA: Cancellous or Trabecular
meshwork arrangement; Springy
intertwined with blood vessels
Compact Bone
AKA Cortical or Dense
solid arrangement; solid
Contains OSTEONS (Haversian system)
prevents tissue death
blood transport through long bones
Joints: Types and Basics
The basis for movement
Named based on what soft tissue separating the joint from the bone:
Fibrous
Cartilaginous
Synovial
Synovial
Articular cartilage at joint
collagen fibers in a liquid matrix (80% water)
imagine: sponge full of water
draws water; cushion
Synovial Fluid
lubrication
protection
nutrition
Examples:
knee, elbow, shoulder and ankle
(ligaments)

Bones on either side of each joint
All joints are crossed by at least one skeletal muscle
Stabilized by these muscles as well as ligaments
Nerves provide feedback about joint position
The Joint as a Functional Unit of the Musculoskeletal System
Injury: functional impairment of joint and surrounding structures
The Big Picture
origin
Muscle Features
Distinguishing Properties
Contraction
Types of Contractions
Ball and socket
Hinge
Simple
compound
complex
Insertion
action
Regardless of shape:
elongated and highly nucleated (fibers)
striated (thick and thin filaments)
sarcomere
is the structural and functional unit of muscle
motor unit
"" of neuromuscular system: nerve+fibers it controls
fine movement vs gross movement

1. excitability in response to nerve stimulation
2. contractility in response to stimulation
3. conductivity (travels along fibers)
4. extensibility
5. elasticity
-active tissue (rather than resist applied forces it produces it)
when in doubt, look at the data:
1990- Dr. Panush: Does exercise cause arthritis? Long-term consequences of exercise on the musculoskeletal system.
"reasonable recreational exercise--carried out within limits of comfort, putting joints through normal motions, and without underlying joint abnormality--need not inevitably lead to joint injury, even over many years"
2008- 284 runners VS 156 non-runners.
21 year follow up: runners had better musculoskeletal stability and 39% lower mortality rate
...-2013- Physical activity can be used as a therapy for OA patients to improve bone and joint health and overall stability as well as quality of life. (this statement can be found in many peer reviewed journal articles).

to review more research see: google scholar, or library website. search: joints and physical activity or joint health

Concentric
Eccentric
Isometric
Full transcript