Test 1 Flashcards
Function of the Skeletal System
structure support protection Locomotion Blood cell formation Storehouse for inorganic minerals Indicator of individual
What are the classifications of bone?
Long Bone Short Bone Flat Bones Irregular Bones Pneumatic Bones Sesamoid Bones Accessory Bones Heterotopic Bones
Irregular bone
a bone with numerous projections
Pneumatic bones
Bones containing sizable air pockets, found in skull
Sesamoid Bone
Round bones found in tendons, alters the angle of muscle attachment
Heterotopic bones
formed in soft tissue (eg. kidney stones)
of bones in the skull
28
Neurocranium - 8 bones
Facial Skeleton - 14 Bones
Auditory Ossicles - 6 Bones
Hyoid
1 Bone
of bones in the Vertebral Column
26 Bones Cervical - 7 Thoracic Vertebrae - 12 Lumber Vertebrae - 5 Sacrum - 1Coccyx - 1
Sternum
1 bone
of Ribs
24
of bones in the shoulder
2 each side
of bones in the upper extremities
30 each side
Arm - 1 each side
Forearm - 2 each side
Hand - 27 each side
of bones in the hand
Hand - 27 each side
Carpus - 8 each side
Metacarpals - 5 each side
Phalanges - 14 each side
of bones in the hip
1 bone on each side
of bones in the lower extremities
30 each side
Thigh - 1 each side
Leg - 3 each side
Foot - 26 each side
of bones in the ankle
26 each side
Ankle - 7 bones each side
Metatarsals - 5 Bones each side
Toes - 14 each side
Diagram of Long Bone
See diagram
Elevation
Linear: Line, ridge, crest
rounded: Tubercle protuberance, tuber/tuberosity, trochanter, malleolus
Projection: spine, process
Indentations
Depressionsl: Groove, sulcus, fossa, fovea, cavity
Passageway: foramen, canal, meatus
Facets
: flattened, smooth surfaces for bone articulation
