Bones Flashcards
What initially make up the human skeleton, then is replaced by bone?
Cartilages and fibrous membranes
What is Skeletal cartilage made of?
A variety of cartilage tissue sculpted to fit location and function
Features of Skeletal cartilage?
- Mostly water
- resilient
- No nerves and blood vessels
What is the perichondrium?
- layer of dense regular regular tissue
What does the perichondrium do?
- Act as reinforcement to resist expansion, when cartilage is compressed
What does the perichondrium surround?
- Cartilage
What is Skeletal cartilage thickness limited by?
- distance nutrients can diffuse through the matrix
What are three types of Cartilage tissue?
- Hyaline
- Fibrocartilage
- Elastic
What do all cartilage tissue have?
- chondrocytes in a lacunae with an Extracellular matrix in a jelly like substance and fibers
What does hyaline cartilage look like?
- Frosted glass
Shape of hyaline cartilage chondrocytes?
- spherical
Features of hyaline cartilage?
- Provide support (flexibility and resilience)
- most abundant
- only fiber type is collagen
What does Skeletal hyaline cartilage include?
- articulate cartilage
- costal cartilage
- respiratory cartilage
- nasal cartilage
What does articulate cartilage do?
- cover end of most bones at moveable joints
What does costal cartilage do?
- Connect the ribs to the sternum (breastbone)
What does respiratory cartilage do?
- form larynx skeleton (voicebox) and strengthen other respiratory passageways
What does Nasal cartilages do?
- support external nose