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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
Q

Lateral Branch of Thoracic Spinal nn

A

Motor- deep and superficial back muscles

26
Q

Where do Intercostal nn arise from?

A

Ventral Rami

27
Q

Upper Intercostal nn T1-6

A

sensory and postganglionic to intercostal mm, parietal pleura, and skin
motor: intercostal mm

28
Q

Branches of intercostal nn

A

lateral cutaneous- sensory/ postgang
anterior cutaneous- sensory/ post gang
collateral- redundant

29
Q

Intercostobrachial n

A

T2 only

Sensory/ postganglionic of skin overlying proximal/ medial aspect of arm

30
Q

Lower Intercostal nn T7-11

Thoracoabdominal nn

A

Sensory/ postganglionic to intercostal, anterior abdominal, peripheral diaphragm, parietal pleura.
Motor to intercostal/ anterior abdominal wall

31
Q

Anterior cutaneous branch of lower intercostal nn

A

sensory and postgang sympathetic inn of skin over rectus abdominis m

32
Q

Subcostal n T12

A

Sensory/ postganglionic- skin and muscles over lateral/ant. abdominal wall
Motor- muscles of anterior abdominal wall

33
Q

Sympathetic chains

A

White T1-L2

Gray C1-S5

34
Q

White Rami Communications

A

T1-L2 Carry preganglionic symp axons to sympathetic chain

carry abdominal ganglia/ sensory axons from viscera to spinal cord

35
Q

Gray Rami Comminucation

A

C1-S5

Carry Postganglionic symp axons from sympathetic chain to spinal nn, sensory axon from viscera to spinal cord

36
Q

Medial Sympathetic nn

A
  • Cardiopulmonary splanchnic n
  • upper thoracis splanchnic nn T1-5
  • Greater Splanchnic n T5-9
  • Lesser Splanchnic n T10-11
  • Least Splanchnic n T12
37
Q

Cardiopulmonary splanchnic nn

A

Sensory and postganglionic axons from cervical/ upper thoracic to cardiac and pulmonary plexuses

38
Q

Upper Splanchnic nn T1-5

A

Sensory and postganglionic axons from upper thoracic symp chain to aortic plexus

39
Q

Greater Splanchnic T5-9

A
  • preganglionic axons to celiac ganglion

- sesnory axons from viscera supplied by celiac a

40
Q

Lesser Splanchnic T10-11

A
  • Preganglionic axons to sup mesenteric ganglion

- sensory axons from viscera supplied by sup mesenteric a

41
Q

Least Splanchnic n T12

A
  • Preganglionic axons to aorticorenal ganglion

- sensory axons from viscera supplied by renal, suprarenal, and gonadal aa

42
Q

Thoracic N Plexuses

A
  • Cardiac plexus
  • Pulmonary plexus
  • Aortic
43
Q

Cardiac Plexus

A

sensory, postganglionic symp/preganglionic parasymp axons innervating the heart and coronary aa

44
Q

Pulmnonary Plexus

A

Sensory, postgang symp, pregang parasym axons to pulmonary and broncheal a/ trachea/bronchi

45
Q

Aortic Plexus

A

sensory and postgang symp axons inn the thoracic aorta and branches

46
Q

Parasympathetic chains

A
  • Vagus nn,
  • Right/ Left recurrent laryngealnn
  • ant/post vagal trunks
47
Q

Vagus nn CNX

A

preganglionic parasym axons inn thoracic and abdominal viscera to left colic flexor

48
Q

Dermatome landmarks of Thorax

A

T4- NIPPLE
T6- OVER XIPHOID PROCESS
T10-UMBILICUS

49
Q

Cisterna Chyli

A

recieves lymph from preaortic and retroaortic lymph nodes/ lower extremeties

50
Q

Origin of Thoracic Duct

A

Cisterna Chyli

51
Q

Thoracic Duct

A

drains nodes of r/l LE, pelvis, abdomen, L thorax, L UE, L head/neck

52
Q

Right Lymphatic Duct

A

Drains nodes from R thorax, R UE, R head and neck

53
Q

R/L Bronchomediastinal Trunks

A

Drains parasternal and thoracic visceral nodes

54
Q

Parietal Nodes

A

Parasternal- medial breast, Upper abdominal wall, anterior pleura
Intercostal- lat/post thoracic wall
Post Mediastinum- pleura and espophagus
Diaphragmatic- liver, pleura, and diaphragm

55
Q

Visceral Nodes

A

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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