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List the six functions of the skeletal system discussed in class.
- structural support
- physical protection
- movement and leverage
- mineral storage
- triglyceride storage
- production of red blood cells
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What is the function of red bone marrow?
to make blood cells
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What is the function of yellow bone marrow?
to store fat
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How many bones comprise the axial skeleton?
80
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The skull, hyoid, thoracic cage, and vertebral column make up the _______ skeleton.
axial
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Axial skeleton refers to the bones:
surrounding the midline
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How many bones comprise the appendicular skeleton?
126
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Appendicular skeleton refers to the bones of:
the extremeties
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The humerous, radius, femur, and tibia are examples of which bone shape?
long bones
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The long bones of the body are primarily the bones of the:
arms and legs
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The sternum, parietal, occipital, and frontal bones are examples of which bone shape?
flat bones
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Oddly shaped bones such as the vertebrae, sphenoid, and ethnoid are examples of which bone shape?
irregular bones
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The patella is a _______ shaped bone. The name also means "shaped like a sesame seed."
sesamoid bone
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List the two examples of short bones given in class.
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Small, square shaped bones are classified as:
short bones
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List the two functions of depressions, tunnels, and grooves in bone.
- passageways for arteries, veins, and nerves
- articulation points
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Lit the two functions of projections, and elevations in bone.
- attachment of tendons and ligaments
- articulation points
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Define process.
any projection or bump
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An extension of a bone making an angle with the rest of the structure is known as a:
ramus
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A large, rough projection where tendons or ligaments attach is called a:
trochanter
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A smaller, rough projections where tendons or ligaments attach is called a:
tuberosity
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A smooth, rounded projection on a bone is known as a:
tubercle
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Which of the two projections is smaller, a trochanter or a tuberosity.
a tuberosity
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Define crest.
a prominent bone ridge
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Define line in relation to bone features.
a low bone ridge
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Define spine in relation to bone features.
a pointed or narrow process
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The expanded articular end of an epiphysis, separated from the shaft by the neck is known as the:
head
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A narrow connection between the epiphysis and the diaphysis, or shaft, is the:
neck
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Define condyle.
a smooth rounded articular surface
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A smooth, grooved articular surface shaped like a pulley is a:
trochlea
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A small, flat articular surface is called a:
facet
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Define fossa.
a shallow depression on a bone
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Define sulcus.
a narrow groove on a bone
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A rounded passageway for blood vessels or nerves is known as a:
foramen
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A duct or channel through bone is a:
canal
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A passageway through bone is known as a:
meatus
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An elongated cleft or slit in bone is a:
fissure
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Define sinus.
a chamber within a bone, normally filled with air
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The tubular shaft of a long bone is known as the:
diaphysis
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The expanded area at each end of a long bone is known as the:
epiphysis
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The narrow zone that connects the diaphysis to the epiphysis, and is also called the neck of the bone, is the:
metaphysis
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Bone that is relatively solid and provides a sturdy protective layer is called:
compact bone
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Cancellous bone, which consists of an open network that appears lattice-like, is also called:
spongy bone
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The outer fibrous tissue layer of bone is called the:
periosteum
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The inner fibrous layer of bones is called the:
endosteum
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A mature bone cell is known as an:
osteocyte
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The pockets in bone tissue where the osteocytes are located are called:
lacunae
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Narrow passageways between the lacunae and nearby blood vessels are called:
cannaliculi
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A periosteum covers the outer surface of bones everywhere in the body except:
at joints
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The meshwork of random rods and bundles that make up spongy bone are known as:
trabeculae
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