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A&P I Lab > Chp. 8: Skeleton Overview > Flashcards

Chp. 8: Skeleton Overview Flashcards

1
Q

Skeleton

A

Body’s framework; composed of cartilage and bone

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2
Q

Red marrow cavities of bones

A

site for hematopoiesis (blood cell formation)

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3
Q

Articular cartilages

A

cover the bone at ends of moveable joints

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4
Q

Costal cartilages

A

connect the ribs to the sternum

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5
Q

Laryngeal cartilages

A

largely construct the larynx

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6
Q

Tracheal/ bronchial cartilages

A

reinforce other passageways of the respiratory system

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7
Q

Nasal cartilages

A

support the external nose

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8
Q

Intervertebral discs

A

separate and cushion the vertebrae

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9
Q

Tuberosity

A

Large rounded projection; may be roughened

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10
Q

Crest

A

Narrow ridge of bone; usually prominent

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11
Q

Trochanter

A

Very large, blunt, irregularly shaped process

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12
Q

Line

A

Narrow ridge of bone; less prominent than a crest

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13
Q

Tubercle

A

Small rounded projection or process

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14
Q

Epicondyle

A

Raised area on or above a condyle

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15
Q

Spine

A

Sharp, slender, often pointed projection

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16
Q

Process

A

Any bony prominence

17
Q

Head

A

Bony expansion carried on a narrow neck

18
Q

Facet

A

Smooth, nearly flat articular surface

19
Q

Condyle

A

Rounded articular projection

20
Q

Ramus

A

Armlike bar of bone

21
Q

Groove

A

Furrow

22
Q

Fissure

A

Narrow, slitlike opening

23
Q

Foramen

A

Round or oval opening through a bone

24
Q

Notch

A

Indentation at the edge of a structure

25
Q

Meatus

A

Canal-like passageway

26
Q

Sinus

A

Bone cavity, filled with air and lined with mucous membrane

27
Q

Fossa

A

Shallow basin-like depression in a bone, often serving as an articular surface

28
Q

Hyaline cartilage

A

provides sturdy support with some flexibility; composes most skeletal cartilages

29
Q

Elastic cartilage

A

much more flexible than hyaline cartilage, and tolerates bending. Only in external ear and epiglottis

30
Q

Fibrocartilage

A

consists of rows of chondrocytes, alternating with rows of thick collagen fibers. Has great tensile strength and can withstand heavy compression; composes intervertebral discs and knee joint cartilage.

31
Q

Compact bone

A

smooth and homogenous

32
Q

Spongy (cancellous) bone

A

composed of small trabeculae (columns) of bone and lots of open space

33
Q

4 types of bones

A

Long, short, flat, irregular

34
Q

Sesamoid bones

A

special types of short bones formed within tendons (kneecaps)

35
Q

Sutural bones

A

tiny bones between cranial bones

A&P I Lab (8 decks)

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