Bones Flashcards
1
Q
axial skeleton
A
- vertical, central axis of body
- head, neck, chest, back
- protects brain, spinal cord, heart and lungs
- attachment site for muscles
2
Q
how many bones in axial skeleton? and which parts?
A
- 80
- skull
- vertebral column
- thoracic cage
3
Q
appendicular skeleton
A
- all bones of upper and lower limbs
- bones that attach limb to axial skeleteon
4
Q
what are the bone shapes
A
- long bone
- short bone
- flat bone
- irregular bone
- sesamoid bone
5
Q
Define long bone and function
A
- longer than wide
- function as levers (move when muscles contract)
6
Q
where are long bones found?
A
- arms (humerus, ulna, radius)
- legs (femur, fibula, tibia)
- fingers (metacarpals, phalanges)
- toes (metatarsals, phalanges)
7
Q
Define short bones and function
A
- cube like, same width, length, and thickness
- provide stability and support
- some limited motion
8
Q
Where are short bones found?
A
- carpals of wrist
- tarsals of ankles
9
Q
Define flat bones and function
A
- thin and curved
- serve as point of attachment for muscles
- protect organs
10
Q
Where are flat bones found?
A
- cranial bones
- scapulae (shoulder blade)
- sternum (breastbone)
- ribs
11
Q
Define irregular bones and function
A
- does not have specific shape, complex
- support and protection
12
Q
Where can irregular bones be found?
A
- vertebrae
- facial bones
13
Q
Define sesamoid bones and function
A
- small found bone (ball)
- form in tendons where pressure is generated
- protect tendons from compressive forces
14
Q
Where are sesamoid bones found?
A
- varies in every person
- usually in tendons of feet, hands, and knees
- patella
15
Q
What is the patella?
A
- sesamoid bone found in common w/ every person
