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Chapter 6: The Skeletal System (6.1-6.2 functions of the skeletal system…
Chapter 6: The Skeletal System
6:1
The skeletal system has five primary functions
what does calcition- it reduces amount of calcium in the bloodstream.
6.3-6.5
which of the following is a step in intramembranous ossification - fibrous connective tissue is converted to bone tissue
in intramembranous ossification, - all of the above
the presence of an epiphyseal line indicates - epiphyseal growth has ended
the correct order for these events - 3,1,5,4,2
the hormone calcitonin functions to - increase the rate of bone deposition
a compound fracture- results in bone breaking the skin
the parathyroid hormone- all of the above
6.1-6.2
functions of the skeletal system include..........- all of the above
bone cell capable of of breaking down bonds are termed - osteoclast
immature active bone cell are termed - osteoblast
red bone marrow functions in the formation of - blood cell
osseous tissue is classified as which of the following- connective tissue
layers of bone are referred to as- lamellae
spongy bone is made up of a network of bony spines called - trabeculae
the bones of the limbs are classified as - long bones
the connective tissue covering the outer surface of bone is (the) - periosteum
which of the following is only found in compact bone- osteons
6.1 Bone function
support
a. the bones in legs and pelvis support the trunk b the atlas supports the skull
protection
of underlying organs a. the skull protects the brain. b. the rig cage protects the heart and lungs
body movement
skeletal msucles attached to bones by tendons a. serve as levers to move bones
hematopoiesis
blood cell formation a. all blood cells are formed in the red marrow of certain bones
in organic salt storage
a. bone stores calcium, phosphorus, others
energy storage
yellow bone marrow in the shaft of long bones ,, serve as an important chemical energy reserve
osetoblast, osteocytes, osetoclast
proximal epipysis
diaphysis
distal epiphysis
6.6
hematopoiesis
blood cell formation
medullary cavity
cavity that contains yellow bone marrow in center of bone.
osteons
cylinder-shaped units in compact bone.
lacunae
chambers where osteocytes are found
trabeculae
bony bars and plates in spongy bone
osteoblasts- bone forming cells
6.6
lordosis
exaggerated lumbar curvature of spine or swayback
kyphosis
abnormal thoracic curvature of spine or hunchback
scoliosis
abnormal side-to-side curvature of spine (S-shape)