Thigh And Hip Flashcards
1
Q
Connective Tissue Components
A
Cells, Extracellular matrix
2
Q
Cartilage
A
- Found wherever body needs to stand up to tension and compression
- Tough and flexible
- lacks nerve fibers
- not vascular (no direct blood supply)
- firm ground substance (up to 80% water for flexibility)
3
Q
Chondroblasts
A
- Cells that create cartilage
- mature into chrondrocytes which are found in small cavities in cartilage called lacunae
4
Q
Chondrocytes
A
Cells that are found in small cavities in cartilage called lacunae
5
Q
Hyaline Cartilage
A
- Shiny blue-white fibers
- form the end of long bones where they meet to form joints (aka articulations)
- “articular cartilage”
- provides firm support with some pliability
- tip of nose, connections of ribs to sternum, most of the respiratory system passages
6
Q
Fibrocartilage
A
- similar to hyaline
- compressible and resists tension well
- found where strong support and ability to withstand pressure are required
- intervertebral discs, knee menisci
- contains many collagen fibers
7
Q
Elastic Cartilage
A
- contains elastic fibers (increases stretchability)
- forms “skeletons” of external ear and epiglottis
8
Q
Bone (osseous tissue)
A
- exceptionally hard
- provides support and protection to body’s structures
- matrix similar to cartilage’s matrix (abundant collagen fibers) and also has inorganic calcium salts on and bt/w fibers
- spongy bone is not as dense and has strcutures called trabeculae
9
Q
Hyaline Cartilage
A
- Ground Substance
- Chondrocyte (cell inside lacuna)
- Lacuna
10
Q
Fibrocartilage
A
- Ground substance
- Collagen fibers
- Chondrocyte or fibroblast (cells)
11
Q
Bone is produced by _________
A
Osteoblasts
12
Q
Osteoblasts mature into _____________
A
Osteocytes (which reside in lacunae w/in matrix
13
Q
Cortical (compact) bone
A
-when observering, you are looking at closely packed structural units of bone called osteons
14
Q
Osteons
A
- form concentric rings/layers of bony matrix (lamellae)
- lamellae surround central canal containing blood vessels and nerves serving the bone
- vessels enter and exit via perforating canals
15
Q
Pelvis
A
- the connection bt/w the axial skeleton and the lower extremity
- pelvic bone comprised of three fused bones
- ilium
- ischium
- pubis
- each ilium articulates with the end of the vertebral column (the sacrum)
