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Skeletal System
Skeletal System
91
Education
Professional
04/19/2012

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Cards

Term
Name the bone cells?
Definition
Osteoblasts, Osteoclasts, Osteocytes
Term
Osteoblasts do what?
Definition
synthesize and secrete osteoid - mineralizes bone tissue
Term
Osteoclasts do what?
Definition
break up bone minerals not needed to form bones - taken away by blood
Term
Osteocytes do what?
Definition
mature osteoblasts
Term
Bone tissue consists of what?
Definition
Osseous tissue, Matrix, Compact bone and Cancellous bone
Term
Matrix consists of what?
Definition
Inorganic salts and Organic matrix
Term
Inorganic salts consist of what?
Definition
Calcium and phosphate produced by calcification
Term
Organic matrix consists of what?
Definition
ground substance - collagen fibers, protein, polsaccharides
Term
Compact bone description -
Definition
80% of total bone mass - outer part of bones
Term
Cancellous bone description -
Definition
20% of total bone mass - inner part of bones
Term
What are the bone functions?
Definition
Red blood cell production, mineral storage, support for body, protection of inner organs and structures and movement
Term
Red marrow does what?
Definition
Produces red blood cells - more in children than adults
Term
Yellow marrow description?
Definition
Red becomes yellow as we age - can change to red if needed
Term
Calcium, phosphorous and other minerals are released into the blood by action of ?
Definition
osteoblasts and osteoclasts
Term
What triggers the release of minerals into the blood by the osteoblasts and osteoclasts?
Definition
calcitonin vs parathyroid hormone
Term
What are the types of bones?
Definition
Long, short, flat, irregular, sesamoid
Term
Example of a long bone is?
Definition
humerus
Term
Diaphysis of a bone is what?
Definition
main shaft
Term
Epiphysis of a bone is what?
Definition
the end
Term
Articular cartilage description?
Definition
hyaline cartilage covering articular surfaces
Term
periosteum description?
Definition
thick fibrous membrane covering bone
Term
Medullary description?
Definition
hollow space in diaphysis
Term
endosteum description
Definition
thin fibrous membrane lining medullary cavity
Term
Short bone example?
Definition
carpal
Term
flat bone example
Definition
sternum
Term
irregular bone example
Definition
vertebra
Term
sesamoid bone example
Definition
patella
Term
condyle bone marking description
Definition
rounded "bump" - fits into fossa of another bone at joint
Term
epicondyle bone marking description
Definition
"bump" near condyle - muscle attachment
Term
facet bone marking example
Definition
flat surface that articulates with another flat bone or facet
Term
foramen bone marking example
Definition
round hole for vessels and nerves
Term
fossa bone marking example
Definition
depression - receives articulating bone
Term
neck bone marking example
Definition
narrow portion
Term
process bone marking example
Definition
raised area
Term
ramus bone marking example
Definition
curved portion
Term
sinus bone marking example
Definition
cavity within bone
Term
sulcus bone marking example
Definition
groove or elongated depression
Term
trochanter bone marking example
Definition
large "bump" for muscle attachment
Term
tuberosity bone marking example
Definition
oblong, raised "bump" for muscle attachment
Term
There are no ____________ ___________ in the cartilage
Definition
blood vessels
Term
What makes up cartilage?
Definition
chondrocytes (cartilage cells) and matrix
Term
cartilage cells are "fed" via _______?
Definition
diffusion
Term
What are the three types of cartilage?
Definition
hyaline, elastic and fibrocartilage
Term
what is the most common type of cartilage?
Definition
hyaline
Term
Example of hyaline cartilage?
Definition
ribs at sternum, trachea, bronchi and tip of nose
Term
Elastic cartilage has fewer _________ than hyaline?
Definition
fibers
Term
Examples of elastic cartilage?
Definition
external ear, epiglottis, Eustachian tube
Term
Fibrocartilage is the _______ ______
Definition
most rigid
Term
Examples of fibrocartilage are?
Definition
pubic symphysis, intervertebral discs, near where large tendons attach to bones
Term
You are born with how many bones?
Definition
270
Term
As an adult you have how many bones?
Definition
206
Term
What percentage are your bones of your total body weight as an adult?
Definition
14
Term
How many paired bones do you have?
Definition
8 sets - tot
Term
How many unpaired bones do you have?
Definition
6
Term
Name the paired bones -
Definition
nasal concha, lacrimal bone, maxilla, nasal bone, palatine, parietal bone, temporal bone, zygomatic bone
Term
Name the unpaired bones -
Definition
ethmoid, frontal bone, occipital bone, mandible, sphenoid bone, vomer
Term
Sinuses are __________________ to help make the skull lighter?
Definition
hollow areas of the skull
Term
Axial Skeleton consists of what?
Definition
Skull, Vertebral Column and the rib cage
Term
There are how many vertebrae?
Definition
thirty three
Term
There are how many cervical vertebrae?
Definition
seven
Term
atlas #1 and axis #2 are unique in structure from other vertebrae and are located where?
Definition
cervical
Term
how many thoracic vertebrae?
Definition
twelve
Term
how many lumbar vertebrae?
Definition
five
Term
how many lumbar vertebrae?
Definition
five
Term
how many sacral veretbae?
Definition
five- fused
Term
how many coccygeal veretbrae?
Definition
four - fused
Term
Where does the cervical spinal curve end?
Definition
mid 2nd thoracic vertebra
Term
Where does the thoracic spinal curve end?
Definition
mid 12th thoracic vertebrae
Term
Where does the lumbar end?
Definition
at the sacrovertebral angle
Term
The ________ curve is more pronounced in women than men?
Definition
lumbar
Term
Vertebral structure consists of what?
Definition
body, lamina, spinous process, transverse spinous processes, neural arch
Term
Lamina description
Definition
posterior portion of vertebra where processes project outward
Term
spinous process description
Definition
projects inferiorly in midline - part you can feel under your skin in the back
Term
transverse spinous processes description
Definition
right and left projections from lamina
Term
neural arch description
Definition
posterior region of canal
Term
pedicle description
Definition
short posterior projections from body
Term
facets description
Definition
superior and inferior articulating surfaces between vertebrae
Term
what vertebra have additional facets that connect to ribs?
Definition
thoracic
Term
nucleus pulposus description
Definition
pulpy, elastic substance of the intervertebral discs
Term
Ligamenta flava does what?
Definition
binds adjacent vertebrae at laminae
Term
interspinous ligaments do what?
Definition
connect spinous processes
Term
supraspinous ligament does what?
Definition
connects the tips of vertebrae to sacrum
Term
intertransverse ligaments do what?
Definition
connec transverse processes of adjacent vertebrae
Term
longitudinal ligament does what?
Definition
posterior and anterior - connects anterior and posterior surfaces of vertebral bodies from atlas to sacrum
Term
what ribs are the true ribs?
Definition
one through seven
Term
true ribs do what?
Definition
connect to sternum directly and to vertebrae
Term
which ribs are the false ribs?
Definition
eight through ten
Term
the false ribs do what?
Definition
connect to sternum indirectly via cartilage
Term
which ribs are the floating ribs?
Definition
eleven through twelve
Term
floating ribs do what?
Definition
only connect to vertebrae
Term
sternum consists of what?
Definition
manubrium, body, xiphoid process
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