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CU DPT ANATOMY I > Thorax > Flashcards

Thorax Flashcards

1
Q

Organization/ location of intercostal neurovasculature

A

Intercostal vein, artery, nerve are between internal intercostals and innermost intercostals on post/inf. rib

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2
Q

Where is the internal thoracic a

A

Post to 1-6 costal cartilages

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3
Q

Boundaries of Thorax

A

Sup: superior thoracic aperture
Inf: Diaphragm
Ant: Sternum
Post: Vertebral Column

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4
Q

Compartments of Thorax

A

R/L Pleural Cavities

Mediastinum: middle, superior, inferior, posterior

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5
Q

Contents of the Thoracic Wall

A

skin, subcutaneous tissue, ribs, intercostal mm

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6
Q

Functions of the Thoracic Wall

A

Protection, Respiration, Muscle Attachment

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7
Q

How many types of ribs are there?

A

3: true rib, false rib, floating rib

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8
Q

True rib

A

Ribs 1-7

connect directly to the sternum via costal cartilage

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9
Q

False Ribs

A

Ribs 8-10

Connect to the sternum via shared costal cartilages

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10
Q

Floating Ribs

A

Ribs 11-12

No connection to the sternum

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11
Q

Rib Components

A

Head, Neck, Shaft, Angle

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12
Q

Rib articular surfaces

A

Head->Body of vertebrae

Tubercle-> Transverse Process of vertebrae

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13
Q

Bony landmark on 1st rib

A

scalene tubercle-> Scalene m attachment that has pulled on lateral aspect of 1st rib

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14
Q

Rib joint classification

A

plane/gliding

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15
Q

Rib joints

A

costovertebral
costotranverse
sternocostal

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16
Q

External Intercostal

A

att: rib to rib (ex to sex)
ax: elevate ribs
in: intercostal n
* does not attach to costal cartilage

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17
Q

Internal Intercostal

A

att: rib to rib (in to chin)
ax: depress ribs
in: intercostal n

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18
Q

Innermost Intercostal

A

att: post surface of ribs
ax: depress ribs
in: intercostal n

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19
Q

Transversus Thoracis

A

att: posterior sternum to costal cartilages 3-7
ax: depress ribs
in: intercostal

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20
Q

Diaphragm attachments

A

att: xiphoid process, inner surface of lower ribs/ costal cartilages, lumbar vertebrae, cura of central tendon

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21
Q

Diaphragm innervation

A

phrenic n

segmental C3-5

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22
Q

Diaphragm action

A

Inspiration and maintain negative pressure in thoracic cavity

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23
Q

Medial and Lateral Thoracic Spinal nn

A

sensory/ postganglionic sympathetic inn to back muscles and skin

24
Q

Medial branch of Thoracic Spinal nn

A

Motor- midline deep back muscles and facet joints

25
Lateral Branch of Thoracic Spinal nn
Motor- deep and superficial back muscles
26
Where do Intercostal nn arise from?
Ventral Rami
27
Upper Intercostal nn T1-6
sensory and postganglionic to intercostal mm, parietal pleura, and skin motor: intercostal mm
28
Branches of intercostal nn
lateral cutaneous- sensory/ postgang anterior cutaneous- sensory/ post gang collateral- redundant
29
Intercostobrachial n
T2 only | Sensory/ postganglionic of skin overlying proximal/ medial aspect of arm
30
Lower Intercostal nn T7-11 | Thoracoabdominal nn
Sensory/ postganglionic to intercostal, anterior abdominal, peripheral diaphragm, parietal pleura. Motor to intercostal/ anterior abdominal wall
31
Anterior cutaneous branch of lower intercostal nn
sensory and postgang sympathetic inn of skin over rectus abdominis m
32
Subcostal n T12
Sensory/ postganglionic- skin and muscles over lateral/ant. abdominal wall Motor- muscles of anterior abdominal wall
33
Sympathetic chains
White T1-L2 | Gray C1-S5
34
White Rami Communications
T1-L2 Carry preganglionic symp axons to sympathetic chain | carry abdominal ganglia/ sensory axons from viscera to spinal cord
35
Gray Rami Comminucation
C1-S5 | Carry Postganglionic symp axons from sympathetic chain to spinal nn, sensory axon from viscera to spinal cord
36
Medial Sympathetic nn
- Cardiopulmonary splanchnic n - upper thoracis splanchnic nn T1-5 - Greater Splanchnic n T5-9 - Lesser Splanchnic n T10-11 - Least Splanchnic n T12
37
Cardiopulmonary splanchnic nn
Sensory and postganglionic axons from cervical/ upper thoracic to cardiac and pulmonary plexuses
38
Upper Splanchnic nn T1-5
Sensory and postganglionic axons from upper thoracic symp chain to aortic plexus
39
Greater Splanchnic T5-9
- preganglionic axons to celiac ganglion | - sesnory axons from viscera supplied by celiac a
40
Lesser Splanchnic T10-11
- Preganglionic axons to sup mesenteric ganglion | - sensory axons from viscera supplied by sup mesenteric a
41
Least Splanchnic n T12
- Preganglionic axons to aorticorenal ganglion | - sensory axons from viscera supplied by renal, suprarenal, and gonadal aa
42
Thoracic N Plexuses
- Cardiac plexus - Pulmonary plexus - Aortic
43
Cardiac Plexus
sensory, postganglionic symp/preganglionic parasymp axons innervating the heart and coronary aa
44
Pulmnonary Plexus
Sensory, postgang symp, pregang parasym axons to pulmonary and broncheal a/ trachea/bronchi
45
Aortic Plexus
sensory and postgang symp axons inn the thoracic aorta and branches
46
Parasympathetic chains
- Vagus nn, - Right/ Left recurrent laryngealnn - ant/post vagal trunks
47
Vagus nn CNX
preganglionic parasym axons inn thoracic and abdominal viscera to left colic flexor
48
Dermatome landmarks of Thorax
T4- NIPPLE T6- OVER XIPHOID PROCESS T10-UMBILICUS
49
Cisterna Chyli
recieves lymph from preaortic and retroaortic lymph nodes/ lower extremeties
50
Origin of Thoracic Duct
Cisterna Chyli
51
Thoracic Duct
drains nodes of r/l LE, pelvis, abdomen, L thorax, L UE, L head/neck
52
Right Lymphatic Duct
Drains nodes from R thorax, R UE, R head and neck
53
R/L Bronchomediastinal Trunks
Drains parasternal and thoracic visceral nodes
54
Parietal Nodes
Parasternal- medial breast, Upper abdominal wall, anterior pleura Intercostal- lat/post thoracic wall Post Mediastinum- pleura and espophagus Diaphragmatic- liver, pleura, and diaphragm
55
Visceral Nodes
Pulmonary- lung Bronchopulmonary- pulmonary nodes and bronchi Tracheobronchial- bronchiopulmonary/ post mediastinal nodes, trachea and heart Paratracheal- tracheobronchial nodes

CU DPT ANATOMY I (2 decks)

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