Skeletal System Flashcards
What are facts about bones
Normal adult has 206 bones
26 bones in a foot
56 bones in a hand
Femur is the largest and strongest bone
Stapes is the smallest bone in the human body located in the ear
We are bone with over 300 bones
What are the types of bones
Long bones
Short bones
Flat bones
Irregular bones
Sesamoid bones
What is the functions of a long bone
Support the weight of the body and movement for example the femur arms and legs
Longer than they are wide
Found mostly in appendicular body
What are the functions of short bones
Stability and movement
As wide as long for example tarsals carpals
Skirt and cubed shaped
Flat bones
Protect internal organs
Skill sternum ribs pelvis
Acts like a shield
Somewhat flattened
Irregular bones
Have complex shapes
Vertebrae and sacrum
Help protect internal organs don’t fit in the other categories
Sesamoid bones
Reinforced tendons embedded in tendons
Small and round
Protects tendons from wear and tear
Patella
How are bones alive
They constantly remodel through osteo coast (breakers) blast (builders)
Because of this we get a new skeleton every 7-10 year
Bones produce blood components through hematopoiesis
Classified as organs because they hey have more than 1 type of tissue
What is a bone made of
Compact bones
Osteons
Sponges bone
Bone marrow
What is osteoporosis
It has a fitting name because it deals with osteoclast and blast and how the bone is not building bones enough but is rather breaking them more. Symptoms of this are easier to break fractures in spine hips wrists and also a hunched posture
To help prevent this requires a healthy diet with vitamin D and calcium to make the bones healthy and strong
Rheumatoid arthritis
A disorder that causes an inflammation in one or more joints
Specifically attacks the lining of the joint
Swelling joint pain stiffness fatigue
Hard to diagnose because the symptoms mirror the symptoms of other disorders
Medication to suppress the immune system helps help because it will reduce the swelling and preserve joint function
Osteoarthritis
The joint becomes inflamed through break down of bcartilage and it’s common in knees hips hands and spine because there areas common used
4 factors that place you at high risk are: aging, joint injuries, obesity, genetics redisposition
Can’t be reversed but manages through pain relief excersize management Surgical inventions
