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Anatomy > Anterior Thorax > Flashcards

Anterior Thorax Flashcards

1
Q

Costal Margin

A

Edge of most inferior costal cartilage

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2
Q

Jugular Notch

A

Most superior edge of sternum

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3
Q

Manubrium

A

Part of sternum between jugular notch and sternal angle

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4
Q

Sternal Angle (+ location)

A

Point where manubrium meets sternal body (2nd rib + T4)

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5
Q

Xiphisternal Joint

A

Point where xiphoid process attaches to sternal body/where costal cartilage meets body

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6
Q

Xiphoid Process

A

Part of sternum that sticks out below xiphisternal joint

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7
Q

Sternoclavicular Joint

A

Point where sternum and clavicle meet

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8
Q

Acromion Process

A

Posterior process extending from superior scapula

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9
Q

Coracoid Process

A

Anterior process extending from scapula

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10
Q

Male Nipple Location (2)

A

4th intercostal space on midclavicular line/T4 dermatome

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11
Q

Suspensory (Cooper’s) Ligaments

A

White strands extending from pectoralis fascia on pectoralis major

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12
Q

Mammary Pathway

A

(15-20) glandular lobes->lactiferous ducts->lactiferous sinuses->(15-20) open onto surface of nipple

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13
Q

Areolar (Montgomery) Glands

A

Sebaceous glands on areola

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14
Q

Mammary Gland Lymphatic Drainage (2.2)

A

75% Axillary Nodes (pectoral, apical)

Parasternal Nodes

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15
Q

Pectoral Axillary Nodes

A

4 of 5 glands along lower border of pectoralis minor, in relation w/ lateral thoracic artery

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16
Q

Apical Axillary Nodes

A

6-12 glands partly posterior and superior to pectoralis minor

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17
Q

Parasternal Lymph Nodes

A

Follow medial portion of breast

18
Q

3 Innervates of Mammary Gland

A

Supraclavicular nn. from above, intercostal nn., lateral mammary branches, intercostal nn., medial mammary branches

19
Q

Lateral Cutaneous Branch of Intercostal nn.

A

Separates ant. and post. branch of intercostal nn.

20
Q

3 Dermatome Landmarks

A

T1 - above sternal angle
T4 - nipple area
T10 - belly button

21
Q

3 Parts of Pec Major (Sup.->Inf.)

A

Clavicular, sternocostal, abdominal

22
Q

Deltopectoral Triangle

A

Gap between deltoid and pectoralis major where you can see axillary a. and v.

23
Q

Pectoralis minor innervation

A

Medial pectoral nn.

24
Q

Pectoralis minor origin

A

Ribs 3-5

25
Q

Pectoralis minor insertion

A

Coracoid process

26
Q

Pectoralis minor action

A

Stabilizes scapula

27
Q

Pectoralis major innervation

A

Medial pectoral and lateral pectoral nerves

28
Q

Pec major origin (2.3)

A

Has clavicular head (anterior surface of medial clavicle) and sternocostal head (anterior sternum and sup. costal cartilages)

29
Q

Pec major insertion

A

Intertubercular groove

30
Q

Pec major action

A

Adducts and medially rotates humerus

31
Q

Transversus thoracis innervation

A

Segmentally by intercostal nn.s

32
Q

Transversus thoracis origin (2)

A

Post. surface of xiphoid process and lower 3rd of sternum

33
Q

Transversus thoracis insertion

A

Inner surface of costal cartilages of ribs 2-6

34
Q

Transversus thoracis action

A

Draws costal cartilages inferiorly

35
Q

6 Mammary Gland Clinical Considerations

A

Cancer, polythelia, amastia, hypomastia, polymastia, gynecomastia

36
Q

Pleural cupula

A

Little domes of pleural cavity that rise above clavicles

37
Q

Costomediastinal recesses

A

Potential space at border of mediastinal pleura and costal pleura

38
Q

Pericardial sac

A

Double-walled sac containing heart and roots of great vessels

39
Q

Cardiac Notch

A

Area of left lung curved to allow heart, where pericardium is exposed

40
Q

Costodiaphragmatic Recesses

A

Potential space of pleural cavity at junction of costal pleura and diaphragmatic pleura

41
Q

5 Boundaries of Thoracic Cavity

A

Post: 12 thoracic vertebrae
Lat: 7 true ribs/5 false ribs (inc. 2 floating ribs)
Ant: Sternum
Sup: Superior thoracic aperture (thoracic inlet)
Inf: Inf. thoracic aperture (thoracic outlet)

Anatomy (28 decks)

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