ch. 1: Skel. Sys. Flashcards
what are the types of bone tissue
compact and spongy
what are 3 features of compact bone
forms outside of bone, very dense, and contains osteons
2 feats. of spongy bone
forms inner marrow, doesn’t contain osteons
what are the 5 bone types
long, short, flat, irregular, and other
2 feats. of long bones and example
cylindrical shaft w/ knobby ends, mostly compact bone tissue. ie) humerus
2 feats. of short bones and example
sm. chunky solid bones, width=length. ie) carpals
2 feats. of flat bones and example
broad flat shape, thin bones. ie) scapula, skull bones
feat. of irregular bones and example
chunky, complex shapes.
ie) vertebra
2 feats. of sesamoid bones and example
formed after birth in tendons, typically flexor tendons. ie) patella
4 functions of bones
support/framework, protection, movement, hematopoiesis (blood cell formation)
name 5 depressions and openings in bone
fissure, fossa, foramen, sulcus, meatus
what is a sulcus
long, narrow groove (not as deep as fissure)
what is a fossa
depression, usually longitudinal
what is a meatus
external opening of a canal
what is a foramen
perforation through a bone
what is a fissure
deep furrow/cleft
define condyle
rounded articular surface at extremity of bone
define facet
small smooth area on bone, usually where another bone articulates
define crest
bony ridge
define line
long, narrow elevated mark/strip on bone
define tubercle
nodule on bone usually for a tendon to attach to
6 functions of the skeletal sys.
structure, protection, movement/muscle attachment, hematopoesis, mineral homeostasis, yellow bone marrow storage
what’re the 2 general divisions of the skel. sys.
axial and appendicular
components of compact bone are arranged into repeating structural units called ______
osteons
Haversian canals in osteons allow _____ ______ to travel within
vascular bundles
what kind of bone tissue is formed from branching bony trabeculae
spongy bone
