Thorax Flashcards

1
Q

Structure Relations: Intercostal Nerves, Arteries and Veins

A

Positioned Deep to Internal Intercostal Muscles
& Directly Inferiorly to the Ribs

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2
Q

Structure Relation: Internal Thoracic Artery

A

Positioned Posterior/Deep to the first 6 costal cartilages (running vertically)

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3
Q

Structure Relation: Left Phrenic Nerve

A

Passes Anterior to Root of the Left Lung & Laterally to the Ascending Aorta

Positioned Lateral to the Pericardial Sac

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4
Q

Structure Relation: Right Phrenic Nerve

A

Positioned Lateral to the Superior Vena Cava and Pericardial Sac
& Passes Anterior to the Root of the Right Lung

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5
Q

Structure Relation: Azygos Vein (Arch)

A

Passes Superior to the Right Main Bronchus

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6
Q

Structure Relation: Thoracic Aorta

A

Positioned Posterior to the Pericardial Sac and Left/Lateral to the Vertebral Bodies
& Passes Posterior to the Left Main Bronchus

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7
Q

Structure Relation: Superior Vena Ceva

A

Positioned Lateral/Right to the Ascending Aorta

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8
Q

Structure Relation: Inferior Vena Cava

A

Positioned to the Right of the Descending Aorta

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9
Q

Structure Relation: Arch of the Aorta

A

Passes Superior to the Pulmonary Trunk

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10
Q

Structure Relation: Left Vagus Nerve

A

Passes Lateral to the Arch of the Aorta &
Posterior to the Left Main Bronchus

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11
Q

Structure Relation: Left Recurrent Laryngeal Nerve

A

Passes Posterior to the Ligamentum Arteriosum &
Inferior to the Arch of the Aorta

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12
Q

Structure Relation: Right Vagus Nerve

A

Positioned Lateral to the Trachea &
Passes Medial to the Arch of the Azygos Vein & Posterior to the Right Main Bronchus

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13
Q

Structure Relation: At the Hilum of the Left Lung, the Pulmonary Artery is….

A

Positioned Superior to the Main Bronchus

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14
Q

Structure Relation: At the Hilum of the Left Lung, the Pulmonary Veins are…

A

Positioned Anterior and Inferior to the Main Bronchus

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15
Q

Structure Relation: At the Hilum of the Right Lung, the Pulmonary Artery is…

A

Positioned Anterior to the Main Bronchus

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16
Q

Structure Relation: At the Hilum of the Right Lung, the Pulmonary Veins are…

A

Positioned Anterior to the Main Bronchus &
Anterior and Inferior to the Pulmonary Arteries

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17
Q

Structure Relation: Esophagus

A

Positioned Posterior to the Trachea and Pericardial Sac &
Passes Posterior to the Left Main Bronchus

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18
Q

Structure Relation: Thoracic Duct

A

Positioned Directly Anterior to the Thoracic Vertebral Bodies

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19
Q

Structure Relation: Right Posterior Intercostal Arteries

A

Pass Anterior to the Vertebral Bodies

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20
Q

Structure Relation: Sympathetic Chain

A

Positioned Lateral to the Thoracic Vertebral Bodies

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21
Q

Structure Relation: Greater Splanchnic Nerve

A

Positioned Anterior-Medial to the Sympathetic Chain

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22
Q

Bony Landmarks: External Intercostal

A

Rib to Rib oriented from Superior-Lateral to Inferior-Medial

(Down and In)

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23
Q

Bony Landmarks: Internal & Innermost Intercostal

A

Rib to Rib oriented Superior-Medial to Inferior-Lateral

(Down and Out)

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24
Q

Bony Landmarks: Transversus Thoracis

A

Posterior Sternum to Costal Cartilages

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25
Q

Bony Landmarks: Diaphragm

A

Xiphoid Process, Inner Surface of the Lower Ribs & Costal Cartilages, Lumbar Vertebrae via Curran to the Central Tendon

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26
Q

Action: External Intercostal

A

Elevation of Ribs

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27
Q

Action: Internal & Innermost Intercostal

A

Depression of Ribs

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28
Q

Action: Transversus Thoracis

A

Depress Ribs

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29
Q

Action: Diaphragm

A

Inspiration (Negative Thoracic Pressure by Inferior Displacement)

30
Q

Innervation: External Intercostal

A

Intercostal Nerve (Segmental)

31
Q

Innervation: Internal & Innermost Intercostal

A

Intercostal Nerve (Segmental)

32
Q

Innervation: Transversus Thoracic

A

Intercostal Nerves (Segmental)

33
Q

Innervation: Diaphragm

A

Phrenic Nerve (C3-C5)

34
Q

Bony Landmarks: Ribs

A

Head (Articular Facet)
Neck
Shaft (Tubercle, Angle, Costal Groove)

1st Rib: Scalene Tubercle, Grooves for Subclavian Artery (post) & Vein (ant)

35
Q

Bony Landmark: Articular Facet of Head of Ribs

A

Articulates with Body of Vertebrae

36
Q

Bony Landmark: Tubercle of Shaft of Rib

A

Articulates with Transverse Process

(Costotubercular, Costcotransverse)

37
Q

Bony Landmark: Costal Groove (Intercostal)

A

Houses Intercostal Vein, Artery & Nerve

38
Q

Bony Landmark: Scalene Tubercle

A

Attaches Anterior Scalene Muscle to 1st Rib

39
Q

Bony Landmark: Sternum

A

Manubrium
Body
Xiphoid Process

40
Q

Bony Landmark: Manubrium of Sternum

A

Jugular Notch, Clavicular Notch & Costal Notch for 1st Rib

41
Q

Bony Landmark: Clavicular Notch of Manubrium

A

Articulates with Clavicle

42
Q

Bony Landmark: Body of Sternum

A

Stern Angle & Costal Notches

43
Q

Bony Landmark: Costal Notches of Body of Sternum

A

Articulate with Ribs 2-7

44
Q

Bony Landmark: Xiphoid Process

A

Attaches to Diaphragm

45
Q

Thoracic Cavity Boundaries

A

Sternum
Spine
Superior Thoracic Apeture
Diaphragm

46
Q

Compartments of Thoracic Cavity

A

R & L Pleural Cavity (R & L Lung)
Superior Mediastinum
Inferior Mediastinum
Diaphragm

47
Q

Components of Thoracic Wall

A

Skin
Subcutaneous Tissue
Ribs
Intercostal Muscles

48
Q

Functions of Thoracic Wall

A

Protect
Respiration
Muscle Attachment

49
Q

Bony Landmarks on Rib from posterior to inferior

A

Head
Neck
Costotubercle
Costalangle
Body/Shaft
Costocartilage
(Sternum)

50
Q

Joints of Ribs

A

All = Plane

Costovertebral
Costotransverse
Sternocostal

51
Q

Costovertebral Joint

A

Head of Rib to Vertebral Body

52
Q

Costotransverse Joint

A

Costotubercle to Transverse Process

53
Q

Sternocostal Joint

A

Sternum to Costal Cartilage

54
Q

Bony Landmarks on 1st Rib

A

1- Groove for Subclavian A. (Posterior)
2- Tubercle for Anterior Scalene
3- Groove for Subclavian V. (Anterior)

55
Q

Bony Landmarks on Sternum from Superior to Inferior

A

Jugular Notch
Clavicular Notch
Manubrium
Sternal Angle
Body
Costal Notches
Xiphoid Process

56
Q

Action of Ribs with Inhale

A

-Diaphragm Depresses
-Lateral Ribs (Shaft) Elevate & Move Laterally
-Sternum Moves Superior & Anterior

57
Q

Actions of Ribs with Exhale

A

-Diaphragm Elevates
-Lateral Ribs (Shaft) Depress & Move Medially
-Sternum Moves Inferior & Posterior

58
Q

Structures on Intercostal Nerves (Posterior to Anterior)

A

Posterior & Anterior Dorsal Root
Spinal Ganglion
Posterior Dorsal Ramus
Anterior Ventral Ramus
Lateral Cutaneous Branch
Anterior Cutaneous Branch

59
Q

Major Landmarks w/ Intercostal Nerves

A

T4 = Nipple
T6 = Xiphoid
T10 = Umbilicus

60
Q

Segments for Naming Intercostal Nerves

A

T1-T6 = Upper Intercostal
T7-T11 = Lower Intercostal
T12 = Subcostal

61
Q

Arterial Supply to Thorax - Aorta

A

Brachiocephalic
L Common Carotid
L Subclavian
Bronchioles
Esophageal
Posterior Intercostals (3-11)
Subcostal (12)

62
Q

Arterial Supply to Thorax - Subclavian

A

Internal Thoracic:
Pericardiacophrenic
Anterior Intercostals (1-6)
Superior Gastric
Musculophrenic
Anterior Intercostals (7-9)

Costocervical:
Superior Intercostal
Deep Cervical

63
Q

Venus Drainage from Thorax - Right Atrium

A

Superior Vena Cava
Azygos
R Brachiocephalic Vein
L Brachiocephalic Vein - L Superior Intercostal - L Posterior Intercostals (2-3)

64
Q

Venus Drainage from Thorax - Azygos

A

R Superior Intercostals - R Posterior Intercostals (2-3)
R Posterior Intercostals (4-11), Accessory Hemiazygos, Hemiazygos
R Subcostal (12), R Ascending Lumbar, R Lumbar Azygos

65
Q

Venus Drainage from Thorax - L Side

A

Accessory Hemiazygos - L Posterior Intercostals (4-8)
Hemiazygos - L Posterior Intercostals (9-11),
- L Lumbar Azygos, L Ascending Lumbar, L Subcostal (12)

66
Q

R Lymphatic Duct

A

R Subclavian Vein & R Internal Jugular Vein

RJI, R Subclavian, R Bronchiomediastinal

67
Q

L Lymphatic Duct

A

L Internal Jugular Vein & L Subclavian

Thoracic Duct & L Bronchiomediastinal

68
Q

What is found on L & R Bronchiomediastinals?

A

Parasternal - Diaphragmatic

Visceral Nodes

69
Q

Visceral Nodes

A

Paratracheal
Tracheobronchial
Bronchopulmonary
Pulmonary

70
Q

Thoracic Duct
(Lymph nodes)

A

Intercostals
Posterior Mediastinal
Intercostals
Cisterns Chyli @ L2

71
Q

Parietal Nodes

A

Diaphragmatic
Parasternal
Intercostals
Posterior Mediastinal