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Forensic anthropology > The thorax: sternum and ribs > Flashcards

The thorax: sternum and ribs Flashcards

1
Q

Composed of the manubrium, corpus sterni, and xiphoid process

A

The sternum

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2
Q

On manubrium, points of articulation with left and right clavicles. Collarbones articulate medially

A

Clavicular notches

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3
Q

On manubrium, central notch on superior edge of manubrium. Where the jugular artery passes through

A

Jugular notch

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4
Q

On manubrium, points of articulation for costal cartilage

A

Costal notches

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5
Q

Where the manubrium and sternum meet. Angle formed between fused manubrium and corpus sterni

A

Sternal angle

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6
Q

Manubrium superior and xiphoid process inferior, anterior surface rough and convex, posterior surface smooth and concave

A

Orienting sternum

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7
Q

Sternum, 12 ribs per side, 24 total

A

The thorax

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8
Q

Ribs 1-7, connect via their own costal cartilage to the sternum, don’t share with other ribs

A

True ribs

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9
Q

Ribs 8-10, share a common cartilage attachment

A

False ribs

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10
Q

Ribs 11-12, do not articulate with the sternum, articulate posteriorly with T1-T12

A

Floating ribs

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11
Q

Houses essential organs, useful for determining cause and manner of death, can be used to age adults

A

Ribcage functions

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12
Q

Part of the rib, swollen proximal part of rib, contains two demifacets for contact with thoracic vertebrae

A

Head

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13
Q

Short segment between head and tubercle on rib, constricted as you move laterally from head

A

Neck

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14
Q

Point of articulation on the rib with the transverse process of thoracic vertebrae, raised rough portion on rib, point of attachment

A

Tubercle

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15
Q

Body of rib, long part of the bone

A

Shaft

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16
Q

Sharp curve in bone lateral to tubercle, point on the rib where it changes direction

A

Angle

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17
Q

Anterior end that attaches to costal cartilage, first ten ribs connect with cartilage, flat and distinct compared to head

A

Sternal end

18
Q

Special rib. Broad, flat, tightly curved. Superior surface is rough and inferior is smooth. Wide and short

A

First rib

19
Q

Special rib. Intermediate between first and third, large tuberosity on midshaft, tight angle, elongated neck

A

Second rib

20
Q

Special rib. Shortest, single facet and no tubercle. Lacks angle. Witch’s fingernail, floating rib

A

Twelfth rib

21
Q

Made of the clavicle and scapula. Great mobility, but unstable

A

Shoulder girdle

22
Q

S shaped bone, medial end articulates with sternum. Distal articulates with scapula. Last bone to fully fuse, superior view smooth, inferior has a groove

A

Clavicle

23
Q

Part of clavicle, medial end, inferior surface. Point of attachment for costoclavicular ligament

A

Costal impression

24
Q

Part of clavicle, posterior inferior midshaft, protects neck vessels, groove on inferior view of clavicle

A

Subclavian sulcus

25
Q

Part of clavicle, lateral and posterior. Attaches ligament from scapula to clavicle, secures articulation with scapula

A

Conoid tubercle

26
Q

Medial end round, lateral end flat. Bone bows anteriorly on the medial end and posteriorly on the lateral end. Inferior surface is rougher, medially bows convex, laterally concave

A

Siding the clavicle

27
Q

Shoulder blades, anterior is smooth and posterior has a spine

A

Scapula

28
Q

Top edge of scapula, upper surface besides the bump

A

Superior border

29
Q

Edge of bone faces laterally scapula

A

Lateral border

30
Q

Medial edge of bone in scapula

A

Medial border

31
Q

Point where the lateral and medial borders of the scapula unite

A

Inferior angle

32
Q

Point where the medial and superior borders of scapula unite

A

Superior angle

33
Q

Transmits the suprascapular nerve on scapula

A

Superior notch

34
Q

Raised portion of scapula, posterior surface has a long ridge of bone that moves medial to lateral

A

Scapular spine

35
Q

Deltoid muscle attachment, anteromedial surface articulates with clavicle. Juts out, attaches to muscle. Comes around anteriorly to articulate with clavicle on the scapula

A

Acromion process

36
Q

Smooth empty space above scapula spine

A

Supraspinous fossa

37
Q

Flat smooth area below the scapula spine posteriorly

A

Infraspinous fossa

38
Q

Shallow oval concavity humeral head articulates. Looking into scapula medially on the lateral surface. Slightly concave, articulates with humerus

A

Glenoid fossa

39
Q

Lateral view of scapula, anchor for various shoulder muscles

A

Coracoid process

40
Q

Lateral view of scapula, anchor for triceps muscle, below glenoid fossa

A

Infraglenoid tubercle

41
Q

Glenoid fossa is lateral, spine posterior, inferior angle inferior

A

Siding scapula

Forensic anthropology (7 decks)

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