Thoracic Osteology And Wall Structure Flashcards

1
Q

How many thoracic vertebrae?

A

12

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2
Q

How many pairs of ribs and their costal catilages?

A

12

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3
Q

What comprises the superior boundary?

A

First thoracic vertebrae, first pair of ribs and costal cartilages, and manubrium

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4
Q

What comprises the inferior boundary?

A

12th thoracic vertebra, 12th pair of ribs and costal cartilages, and xiphisternal joint

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5
Q

Manubrium articulates with __ aspect of body of sternum

A

Superior

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6
Q

What joint type is the manubriosternal joint

A

Symphysis joint

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7
Q

Xiphoid process marks level of dermatome _?

A

6

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8
Q

Body of sternum made up of how many fused sternebrae?

A

4

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9
Q

Vertebrosternal ribs numbers

A

1-7

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10
Q

Vertebrochondral ribs numbers

A

8-10

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11
Q

Vertebral ribs

A

11-12

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12
Q

Costa = __ + __ ?

A

Rib bone + its cartilage

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13
Q

What are the parts of a rib?

A

Head, neck, tubercle, shaft, and costal cartilage

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14
Q

The scalene tubercle is for insertion of what muscle?

A

Scalene anterior muscle

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15
Q

The shallow groove for subclavian vein is __ to tubercle

A

Anterior

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16
Q

Shallow groove for subclavian artery is __ to tubercle

A

Posterior

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17
Q

What is the first spinous process to be palpated

A

Vertebra prominent (C7)

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18
Q

T/F: tubercle articulates with transverse process of same number vertebra

A

T

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19
Q

Sternal angle marks rib number

A

2

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20
Q

Aortic valve heart sound can be heard at the __ intercostal space of __ side

A

2nd intercostal space on right side

21
Q

Pulmonary valve heart sound can be heard at __ intercostal space along the __ side

A

Second an left side

22
Q

Scapular spine is at level of __ rib and __ vertebra

A

3rd rib and T2

23
Q

Costal margin superior part is marked by the __ cartilage

A

7th

24
Q

Costal margin inferior part is marked by the __ cartilage

A

10th

25
Q

What is important in CPR?

A

Infrasternal angle

26
Q

Vertical line running through the inferior angle of the scapula

A

Scapular line

27
Q

Anterior axillary line is formed by lower border of __

A

Pectoralis major

28
Q

Posterior axillary line formed by tendon of __ muscle

A

Latissimus dorsi muscle

29
Q

Clavicular and scapular regions of upper thorax innervation

A

C3-4

30
Q

Upper thorax innervation

A

T1-5

31
Q

Xiphoid process region innervation

A

T6

32
Q

Lower parts of thorax and lateral/anterior abdominal wall innervation

A

T7-12

33
Q

Cephalic vein drains into the __ vein

A

Axillary vein

34
Q

Basilic vein continues as the __ vein

A

Axillary vein

35
Q

Hands in front pocket is synonymous with what muscle layer

A

External intercostals

36
Q

Hands in back pocket is synonymous with what muscle layer

A

Internal intercostals

37
Q

What muscle layer has incomplete layers with fibers arranged in a more horizontal direction?

A

Innermost intercostals

38
Q

Four of five slips that originate from the inferior sternum and extend superolaterally to internal surface of upper ribs is what muscle layer?

A

Transversus thoracis

39
Q

What is the fibrous tela subcutanea?

A

CT layer surrounding the entire mammary gland

40
Q

What is the fatty tela subcutanea?

A

Adipose tissue deep to fibrous layer

41
Q

What is the suspensory ligament of Cooper?

A

Bundles of collagen fibers in dermis and hypodermis

42
Q

Nipple, areola, and lactiferous lobules drain where?

A

Subareolar lymph node

43
Q

75% of lymph from breast drain here

A

Axillary lymph nodes (pectoral, central, apical)

44
Q

Remaining lymph (25%) drain here

A

Parasternal and abdominal lymph nodes

45
Q

Perilobular and interlobular lymphatic vessels drain into…

A

Subareolar plexus

46
Q

Subareloar plexus drains into…

A

Lateral lymphatic trunk and medial lymphatic trunk

47
Q

Lateral lymphatic trunk and medial lymphatic trunk drain into…

A

Pectoral group of axillary lymph nodes

48
Q

Pectoral group of axillary lymph nodes drain into…

A

Subclavian lymphatic channels