Skeletal system Flashcards
functions of skeleton
- provides scaffold to support weight of body
- facilitates movement by being the points of attachment for muscles
- protects vital organs
- produces red blood cells
- stores and releases minerals and fats
types of bones
- flat bone
- long bone
- sesamoid bone
- irregular bone
- short bones
flat bone, purpose and example
protects vital organs
sternum
long bone, purpose and example
supports weight and allows movement
femur
sesamoid bone, purpose and example
protects tendons
patella
irregular bone, purpose and example
variable nature helps to protect diff structures
- vertebrae
short bone, purpose and example
provides stability and some movement
how many bones in a skeleton
206
axial skeleton
consists of the bones that lie around the central axis of the body
provides the main support for erect posture and protection of the CNS + organs within thorax
name some bones that make up the axial skeleton (SKULL)
- cranium (8)
- face (14)
- hyoid (1)
- ossicles (ear bones) (6)
name some bones that make up the axial skeleton (VERTEBRAL COLUMN)
- cervical vertebrae (7)
- thoracic vertebrae ( 12)
- lumbar vertebrae (5
- sacrum
-coxyx
name some bones that make up the axial skeleton (THORAX)
- sternum
- ribs
appendicular skeleton
consists of bones of the upper and lower limps, the shoulder and hip