chapter 2 skeletal system Flashcards
skeletal system
define crest
sharp ride of the border, lilac crest
define meatus
tubelike or canal opening of the bone like external auditory meatus
define facet
flat or shallow surface articular surface
ditch like groove than contain a nerve or a tendon
groove
define line of bony landmarks
less prominent ridge
define turbercle
small round projection
define tuberosity
large round projection
trochanter
very large prominence for muscles attachment
define eminence
projecting prominent part of bone
define spine
long thing projection like scapular spine
define condyle
rounded knuckle like projection like medial epicondyle of femur
what are the axial skeleton?
Trunk - Thorax
Vertebra
Skull
what are the appendicular system
Pelvis
Scapula
Upper & Lower Extremities
the function of the cancellous bone
Porous & spongy= traveculae
Pores filled with marrow
Most of the articular ends
the function of the compact bone
Hard Dense outer shell
Thicker along the shaft,
flat bones & skull
Thinner at ends of the bone
the function of the endosteum
Important for bone resorption
what are the characteristics of periosteum
Thin fibrous membrane
Outside of the bone except for articular surface
Attachment for tendons & ligaments
Nourishment
Repair of the bone
the function of the medullary canal
Center of shaft
Bone marrow
Nutrient arteries
Lined by endosteum
deine the diaphysis
shaft of the bone
Mostly compact bone=strength
what are the function of the trabeculae
to add strength, mesh network of bone, related to stress applied
what does osteoclasts mean
to make new cells
what does osteoblast mean
to destroy old cells
what are the function of periosteum
to repair bone, nourishment, attachment for tendons and ligaments
