Chapter 3 Flashcards
skeletal system
skeletal systems
bones, bone marrow, cartilage, ligaments, synovial membranes, synovial fluid and bursae; forms framework of body, supports and protects internal organs, has calcium, joints work with muscle, ligaments and tendons to move body
ossification
3 months after birth, turning fragile membranes and cartilage into bone
osteoclast
cells that break down old or damaged bone
bone
form of connective tissue, 2nd hardest; capable of growth, healing, and reshaping itself
periosteum
tough fibrous tissue that forms the outermost coving of the bone
peri
surrounding
oste/o
bone
compact bone
cortical bone; hard and very strong bone that forms protective outer layer, makes up 75% of bone matter
spongy bone
cancellous bone; porous, lighter and weaker than compact bone, red bone marrow is in, located at ends and inner portion of long bones, pelvic bone, ribs and vertebrae
long bones
major bones of arms and legs ie. femur, humerus
short bones
roughly sub shaped, made of spongy bone covered with a layer of compact bone; wrists and ankles
medullary cavity
central cavity located in shaft of long bones, surrounded by compact, has red and yellow bone marrow
medullary
pertaining to the inner section
endosteum
tissue that lines the medullary cavity
end
within
red bone marrow
within spongy bone; hematopoietic tissue that manufacture red blood cells, hemoglobin, white blood cells, and thrombocytes
hematopoietic / hemopoietic
pertaining to the formation of blood cells
hemat/o
blood
-poietic
pertaining to formation
yellow bone marrow
fat storage area; composed of fat cells, located in medullary cavity of long bones
cartilage
smooth, rubbery, blue-white connective tissue, acts as shock absorbers, more elastic; ears and tip of nose
articular cartilage
covers surfaces of bones where they articulate (come together) to form joints makes smooth join movement possible and protects bones from rubbing against each other
meniscus
curved, fibrous cartilage found in some joints, such as knees and temporomandibular joint of jaw
diaphysis
shaft of long bone