Unit 2 Flashcards
Osteocytes
Bone maintaining cells
Extra cellular matrix
Collagen (protein fibers) hardened by calcium
2 types of bone tissue:
- compact bone
- spongy bone
Compact bone: (the outer shell of all bone) tightly packed osteoblasts that run longitudinally within the bone GOOD FOR SUPPORTING
Spongy bone: (found at the heads of long boats and fills most of irregular bones) it consists of a lattice of thing threads of bone called trabeculae MAKES THE BONE LIGHTWEIGHT
3 parts of a long bone:
- Epiphysis (ENDS of the bone)
- articular cartilage (smooth surface where 2 bones meet) - Diaphysis (SHAFT of the bone)
- compact bone (support) - Periosteum
- covering around a bone
3 parts of the vertebral column:
- Cervical (7)
- Thoracic (12)
- Lumbar (5)
The top 2 bones of the vertebral column
Atlas
Axis
A rounded process that articulated with another bone
Condyle
Example: occipital condyle
A projection situated above a condyle
Epicondyle (medial epicondyle of humerus)
An opening for the passage of b.v. &/or nerves
Forsaken (ex: foramen magnum)
An enlargement at the end of a bone
Head
Femoral head
A prominent projection of a bone
Process (lateral process of vertebrae)
A sharp projection
Spine
Ex: spine of scapula
A relatively large process
Trochanter
Ex: greater trochanter of femur
A small knob-like process
Tubercle (ex: tubercle of rib)
A knob-like process larger than a tubercle
Tuberosity (ex: tibial tuberosity)
