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Anatomy Exam III > Thoracic Wall > Flashcards

Thoracic Wall Flashcards

1
Q

Suprasternal (jugular notch)

A

starts at larynx, go down to sternum

sits in plane between T2 and T3

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2
Q

Sternal Angle of Louis

A

at level of 2nd rib. Inferior to jugular notch

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3
Q

Xiphoid process

A

at level of T9-T10. Begins to ossify at about 40 years old. Can curve inward or outward

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4
Q

Root spine of scaupla

A

on medial border at wall of T4. Points inferiorly to thorax

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5
Q

Inferior angle of scapula

A

pointy thing at the bottom

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6
Q

Midsternal line

A

straight down midline

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7
Q

midclavical line

A

midway in clavical

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8
Q

scapular line

A

goes right through the inferior angle of scapula

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9
Q

anterior axillary line

A

slightly lateral to nipple

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10
Q

midaxillary line

A

goes straight through middle of armpit. chest tubes get put here

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11
Q

posterior axillary line

A

posterior to midaxillary line, over latissimis dorsi

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12
Q

Borders of thoracic aperture

A

body of T1, rib 1 , manubrial-costal join (costal notch), superasteral notch

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13
Q

manubrium

A

starts at T2, goes to T4/T5 where it joins the body

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14
Q

Thoracic outlet/inferior thoracic aperture consists of

A

consists of diaphragm, openings for abdominal aorta, vena cava and esophagus

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15
Q

Thoracic outlet/inferior thoracic aperture borders

A

xiphisternal joint, subcostal margin, 12th rib, vertebra 12

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16
Q

True Ribs

A

1st 7 pairs. directly attach to sternum

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17
Q

False ribs

A

8-10 don’t attach directly. 11 and 12 are floating

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18
Q

Sternocostal Joint

A

primary cartilagenous joint. Will ossify later in life

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19
Q

Sternoclavicular joint

A

synovial/saddle type joint. only bony attachment of upper limb to axial skeleton

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20
Q

manubristernal and xiphisternal joints

A

secondary cartilagenous. immovable

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21
Q

Where are breasts located in men

A

4th intercostal space

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22
Q

Parts of the breast

A

pectoralis major, serratus anterior, areola, nipple

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23
Q

Which quadrant is the axillary tail located on the breast

A

superolateral

24
Q

Lactiferous glands

A

secrete milk into lactiferous duct system

25
Q

Sinus (ampulla) does what in lactation

A

stores a small amount of fluid so that a continuous amount of fluid is provided for the baby

26
Q

lactiferous duct

A

opens into the nipple

27
Q

Reteromammary space

A

deep to mammary gland and superficial to deep fascia of muscle. allows for breast movement

28
Q

suspensory (cooper’s) ligament

A

suspends glands from dermis on thoracic wall. Stretches over time - which results in saggy boobs. When tumors press on these ligaments it causes dimpling

29
Q

Arteries of mammary gland

A

pectoral branches of thoracoacromal trunk
laternal thoracic artery
internal thoracic artery

30
Q

Lymph vessels and nodes of mammary gland

A

central axillary nodes
apical axillary nodes
parastemal nodes

31
Q

Where do most breast cancers go

A

apical axillary nodes to the armpit

32
Q

Origin of pectoralis major

A

clavicle, and sternum

33
Q

Insertion of pectoralis major

A

lateral lip of intertuberullar groove, latissmus dorsi

34
Q

Innervation of pectoralis major

A

medial and lateral pectoral nerves

35
Q

origin of seerratus anterior

A

upper 8 or 9 ribs

36
Q

insertion of serratus anterior

A

anterior medial border of scapula

37
Q

innervation of serratus anterior

A

long thoracic nerve

38
Q

origin of pectoralis minor

A

ribs 3,4,5

39
Q

insertion of pectoralis minor

A

scapula, coracoid process

40
Q

innervation of pectoralis mino

A

medial pectoral nerve

41
Q

Function of external intercostal m

A

elevates

42
Q

How do muscle fibers of external intercostal run

A

anteroinferiorly

43
Q

Function of internal intercostal m

A

depresses bony rib portion. elevates costal cartilage partion.

44
Q

How do muscle fibers of internal intercostal m run

A

posteoinferiorly

45
Q

Function of inner most intercostal m

A

elevation

46
Q

How do transverse thoracis m run

A

superiorly/laterally

47
Q

Muscles of respiration

A

anything that attaches to ribs can be recruited in active breathing. Quite breathing is 8-% diaphragm and 20% intercostals.

48
Q

Exhalation

A

relaxation

49
Q

Intercostal n

A

at costal groove
typical spinal nerve
runs between internal and innermost layers of muscle

50
Q

thoraco-abdominal n

A

T5-Tii

starts as intercostal and ends up at abdomin

51
Q

Internal thoracic a

A

branch of subclavin. left one is used in bypass surgery

52
Q

Thoracic aorta

A

to left of vertebral column

53
Q

Superior intercostal a

A

in 1st 2 intercostal spaces (from costocervical trunk)
Superior thoracic a
both help supply intercostal space

54
Q

Axygous vein

A

drains everything from thoracic cavity up and into superior vena cava

55
Q

Parietal pleura

A

firmly attached to internal surface of thoracic wall by endothoracic fascia

56
Q

Visceral pleura

A

part of lung

Anatomy Exam III (13 decks)

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