Chapter 15 Flashcards
bones are made of
made of osseous tissue, blood vessels, and nerves
osseous tissue
specialized connective tissue
osteocytes
bone cells
osseous tissue is made of
osteocytes
collagen,
calcium salts
collagen
dense connective tissue strands
bones of a fetus
made of cartilage
- add calcium salt over time to replace them with bone
ossification
bone formation
osteoblast
immature osteocytes to produce bone
- builds up bone
osteoclast
reabsorb or digest bony tissue
- breaks down bone
osteocytes aka
bone phagocytes
number of bone
206
long bones
strong
broad at both ends
large area for surface attachments
short bones
small
irregular shape
flat bones
for small body parts
sesamoid bones
small, rounded bones
diaphysis
middle region
- aka shaft
shaft of the bone
middle region
epiphysis
the end of the long bone
epiphyseal line/plate
area of cartilage tissue that is constantly being replaced by new bone tissue as the bone grows
- aka growth plate
cartilage cells
help form new bones
- lengthen bones during childhood and adolescence
full growth
plates calcifies and disappears
metaphysis
flared portion of the bone
- between the epiphysis and diaphysis
-adjacent to epiphyseal plate
periosteum
strong, fibrous, vascular membrane that covers long bones except the end
- also has extensive nerve supply
articular cartilage
coverage for when ends of long bones and surface of any bone meets another bone to form a joint
articular cartilage described
smooth, strong, and slick tissue
articular cartilage job
it caps the end of the bone
- cushion joint and allows it move smoothly and efficiently
compact. cortical bone
a layer of dense bone under the periosteum in all bones
- located around the diaphysis of long bones
haversian canals
small canals that bring oxygen and nutrients to bone and remove waste products (CO2)
medullary cavity
compact bone is tunneled out in the central shift
yellow bone marrow
composed by fat cells
cancellous bone
spongy bone
trabecular bone
porous, less dense bone
trabeculae
series of separated bony fibers that make up a spongy latticework
- found on epiphyses and metaphyses
red bone marrow
immature and mature blood cells in stages of development
hematopoiesis
production of all types of blood cells in bone marrow
bone processes
enlarged areas that extend out of the bones that serve as attachments for muscles, tendons, and ligaments
bone head
rounded end of a bonec
condyle
round, knuckle like process at the end of the bone
epicondyle
small rounded process above the condyle
trochanter
large and small processes for tendon attachment on the femur
tuberosity
round elevation where where tendons and muscles attach to humerus, calcaneus and pelvis