Unit 1 test Flashcards
6 types of body tissues
- skin
- bone
- cartilage
- muscles
- tendons
- ligaments
function of the skin
provides first line of defense against external forces and the environment
3 layers of the skin
- epidermis
- dermis
- hypodermis
epidermis
the most superficial, thin layer of the skin
dermis
connects epidermis, thicker layer
hypodermis
-helps hold the skin to underlying bone and muscle tissue
-stores 50% of the body’s fat
function of bone
protects vital organs and structures from trauma
-provides structure to support movement
axial
bones of the spine, thorax, and skull
appendicular
bones of the extremities
5 types of bones
- long bone
- short bone
- flat bone
- sesamoid bone
- irregular bone
long bones
-contains epiphysis (growth plates)
-has a body longer than its width
-facilitates movement
short bones
-as wide as they are long
-cubed-shape
-provide stability and some movement
flat bone
-provide protection to vital organs
-provide a large surface area for the attachment of muscles
irregular bones
-non-uniform complex shape
-vary in shape and structure
sesamoid bones
-free floating bone embedded within a tendon
-help reinforce the role of the tendon