skeletal system Flashcards

1
Q

what are the two subdivisions of the skeleton

A

Axial skeleton
Appendicular skeleton

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2
Q

What are the parts of the skeletal system(main)

A

Bones
Joints
Carilage
Ligaments

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3
Q

Two classifications of bone

A

Compact bone
Spongy Bone

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4
Q

Dense, Smooth, Homogeneous

A

Compact Bone

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5
Q

Small needle like pieces of bone.

A

Spongy Bone

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6
Q

The four classifications of bone, based on shape

A

Long
Flat
Short
Irregular

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7
Q

The shaft of the long bone is also known as?

A

The Diaphysis

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8
Q

The outside covering of the diaphysis

A

Periosteum

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9
Q

Secures the periosteum to an underlying bone

A

Peforating(sharpey’s Fiber)

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10
Q

Composed mostly of spongy bone enclosed by thin layer of compact bone

A

Epiphysis

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11
Q

Covers the external surface of the epiphyses

A

Articular Cartilage

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12
Q

Remnant of the epiphyseal plate

A

Epiphyseal line

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13
Q

Flat plate of hyaline cartilage seen
in young, growing bone that causes the lengthwise growth of a long
bone

A

Epiphyseal plate

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14
Q

Lines the inner surface of the shaft and made of connective tissue

A

Endosteum

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15
Q

is the cavity inside the shaft that contains yellow marrow in adults, and Contains red marrow for blood cell
formation in infants until age 6 or 7

A

Medullary cavity

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16
Q

Mature bone cells situated in bone
matrix

A

Osteocytes

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17
Q

Cavities in bone matrix that house
osteocytes

A

Lacunae

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18
Q

Concentric circles of lacunae situated around the central (Haversian) canal

A

Lamellae

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19
Q

Opening in the center of an osteon (Haversian system) that Runs lengthwise through bone and Carries blood vessels and nerves

A

Central Haversian Canal

20
Q

A unit of bone containing central canal and matrix rings, and for Structural and functional unit of compact bone

A

Osteon(Haversian System)

21
Q

Tiny canals that Radiate from the central canal to lacunae that Form a transport system connecting all bone cells to a
nutrient supply

A

Canaliculi

22
Q

The Canal perpendicular to the central
canal and Carries blood vessels and nerves

A

Perforating(Volkmann’s) canal

23
Q

Bony expansion carried on a
narrow neck

A

Head

24
Q

Smooth, nearly flat articular surface

A

Facet

25
Q

Rounded articular projection

A

Condyle

26
Q

Armlike bar of bone

A

Ramus (ra’mus)

27
Q

Furrow

A

Groove

28
Q

Narrow, slitlike opening

A

Fissure

29
Q

Round or oval opening through a bone
Indentation at the edge of a structure

A

Foramen

30
Q

Canal- or tunnel-like passageway

A

meatus

31
Q

Cavity within a bone, filled with air and
lined with mucous membrane

A

Sinus

32
Q

Shallow, basinlike depression in a bone, often serving as an articular surface

A

Fossa

33
Q

Any bony prominence

A

Process

34
Q

Sharp, slender, often pointed projection

A

Spine

35
Q

Raised area on or above a condyle

A

Epicondyle

36
Q

Small, rounded projection or process

A

Tubercle

37
Q

Narrow ridge of bone;
less prominent than a crest

A

Line

38
Q

Very large, blunt, irregularly shaped process (the only examples are on the femur)

A

trochanter

39
Q

Narrow ridge of bone; usually prominent

A

crest

40
Q

Categories of bone markings

A

Projections or processes and Depressions cavities

41
Q

grow out from the bone surface
Terms often begin with “T”

A

Projections

42
Q
  • indentations
  • Terms often begin with “F”
A

depressions

43
Q

Sites of attachments for muscles, tendons, and ligaments
- Passages for nerves and blood vessels

A

Bone Markings

44
Q

give the layers of the bone from superficial to deep

A

periosteal blood vessel
periosteum
perforating(sharpey’s) fiber
compact bone
osteon
lamellae
central(haversian) canal
blood vessel
central(volksmann’s) canal
spongy bone
epiphyseal line
medullary cavity
yellow bone marrow

45
Q

spongy bone is Composed of small, needlelike pieces of bone called

A

trabeculae