15 Musculoskeletal System Vocab Flashcards
articular cartilage
thin layer of cartilage covering the bone in the joint space
Bone
hard connective tissue, long, short, flat, sesamoid
calcium
mineral constituent in bone, calcium phosphate is the major calcium salt in bones
cancellous bone
spongy, porous, bone tissue in the inner part of a bone
cartilage
flexible, rubbery connective tissue. immature skeleton, epiphyseal growth plate, and on joint surfaces
collagen
dense, connective tissue protein strands found in bone and other tissue
compact bone
hard, dense, bone tissue, usually found on the outer portion of bones
cranial bones
ethmoid, frontal, temporal, occipital, parietal, sphenoid
facial bones
lacrimal, mandibular, zygomatic, nasal, vomer, maxilla
fontanelle
soft spot between skull bones in an infant
haversian canals
minute spaces filled with blood vessels, found in compact bone
ossification
process of bone formation
osteoblast
immature osteocytes that produce the bony tissue that replaces cartilage during ossification
osteoclast
large cells that function to reabsorb or digest bony tissue (-clast=break)
periosteum
membrane surrounding bones, rich in blood vessels and nerve tissue
red bone marrow
found in cancellous bone, site of hematopoiesis
sella turcica
depression in the sphenoid bone where the pituitary gland is located
trabeculae
supporting bundles of bony fibers in cancellous (spongy) bone
yellow bone marrow
fatty tissue found in the medullary cavity of most adult long bone
bursa
sac of fluid near a joint, promotes smooth sliding of one tissue against another
synovial joint
freely moveable joint
types of muscles
striated, smooth, cardiac
striated muscles
voluntary or skeletal muscles
fascia
separates muscle, contains muscle’s blood, lymph, and nerve supply
smooth muscle
involuntary or visceral muscles that move internal organs; digestive tract, blood vessels, secretory ducts. autonomic nervous system (ANS)
cardiac muscle
involuntary, striated in appearance but fxns like smooth
