Locomotor System Flashcards
What is the function of the skeletal system
- provides the basic shape
- provides support for the body
- allows the muscular system to produce movement
- protection of vital organs
What are the two functional parts of the skeletal system
- axial system
- appendicular system
What is included in the axial skeleton
- head
- neck
- trunk
What is involved in the appendicular Skelton
Limbs
Pectoral and pelvic girdle
Describe cartilage
- resilient, semirigid connective tissue
- in areas for flexibility
- Articular cartilage reduces friction
- avascular
What is stronger cartilage or bone
Bone
What are some functions of bone
- support
- protection
- mechanical basis
- storage
- new cells
What do bones store
Storage of calcium
What are the two types of bone
- compact bone
- spongy bone
Distinguished by amount of solid matter and size of space
What are the functions of compact bone
- strength for weight bearing
- in long bones it is found in the middle of the shaft
- long bones have elevations
What is the function of red marrow
Production of new blood cells, white and red
How long do red blood cells live
120 days
How strong is the femur
The femur can hold 20 times your body weight
Long bones are…
Tubular
Short bones are…
Cuboidal (eg, tarsus, carpus)
Flat bones are…
Protective
What are the classifications of bones
1) long
2) short
3) flat
4) irregular
5) sesamoid
Example of a flat bone
Skull
Example of short bones
Hands and feets
Example of irregular bones
Facial skeleton
Example of sesamoid bone
Knee bone
Diaphysis
Shaft, main part of the bone
Epiphysis
Ends of long bone
Metaphysics
Area of growth between diaphysis and epiphysis
What kind of Articular cartilage is on the end of bone
Hyaline cartilage
Describe the blood supply of bone
Bone does not have a great blood supply
What bone in particular has a very poor blood supply
Tibia
