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ANAT 314 > Lab 4: Thoracic and Abdominal walls > Flashcards

Lab 4: Thoracic and Abdominal walls Flashcards

(54 cards)

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1
Q

What seals ifnerior thoracic aperture

A

Diaphragm

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2
Q

What structures passs through thoracic inlet and outlet

A

Aorta
Esophagus
Sympathetic chain

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3
Q

What level is jugular notch

A

T2 posteriorly

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4
Q

What level is eternal angel

A

T4/5 posteriorly, rib 2

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5
Q

What level is xiphisternal junction

A

T9 posteriorly
Rib 7

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6
Q

Costal facet on tp articulates with

A

Tubercle of rib
Same # vertebrae
Costotransverse joint

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7
Q

Vertebral Demi facets articulates with

A

Head of rib
Supeior vert = inf facet and in vert = Superior facet (same number)
Costovertebral joint synovial plane/gliding, complex

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8
Q

True ribs

A

1-7
Attach to sternum directly

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9
Q

False ribs

A

8-10
Attach via costal margin

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10
Q

Floating ribs

A

11 and 12
No articulation with sternum

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11
Q

Why is rib 1 atypical

A

Single facet on head

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12
Q

Why is rib 10 atypical

A

Only one facet on head
Articulates with only some number vertebrae

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13
Q

Why is ribs 11-12 atypical

A

Single facet on head
No neck
No tubercle
No intercostal joints- floating
Short

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14
Q

Describe sternocostal articulations

A

Rib1 = synchrondrosis
Ribs 2-7 = synovial plane/gliding

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15
Q

Describe costochondral articulations

A

Synchondroses - ribs 1-10 only
Between eternal end fo rib and costal cartilage

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16
Q

Describe costovertebral articulations

A

Synovial plane/gliding
Between head of rib an vertebral Demi facet of thoracic vertebrae

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17
Q

Describe costotransverse articulations

A

Synovial plane/gliding
Between the tubercle of the rib and costal facet of the transverse process of the thoracic vertebrae with the same number

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18
Q

Where is van

A

Between internal and innermost intercostals

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19
Q

Describe external intercostal

A

Hands in pockets
Sup post to ant inf
Elevates ribs
Ribs to costal cartilages anteriorly
Elevates ribs forceful respiration

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20
Q

Describe internal intercostal

A

Opposite to external= perpendicular
Depress ribs, forceful expiration
Down and back

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21
Q

Describe innermost intercostal

A

Can only see on inside
Same orientation and fucntion of internal

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22
Q

Describe trans versus thoracis

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A

Forceful expiration
From ribs o sternum = pull down

23
Q

What are the 2 terminal branches of internal thoracic artery and hat general areas do they supply

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A

Travels in costal margin
Musculophrenic to diaphragm
Superior epigastris to superior part rectus abdominals

24
Q

Describe where anterior or posterior vans travel

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A

Ant= from internal thoracic
Post = from thoracic aorta except for top 2 = from subclavian
Ant and post anastomose

25
What happens to lower intercostal nerves
Become thoracoabdominal nerves Travel between internal oblique and transversus abdominals Innervate abd msucles T7-11 and t 12
26
Describe arteries
Thoracic aorta —> subclavian —> posterior intercostals + internal thoracic —> anterior intercostal arteries
27
name what other msucles help respiration
Scalenes Serratus posterior superior anf inferior Levatores costarum
28
Describe rectus abdominus tendinous intersections
3 usually At umbilicus, xiphoid proces and one inebtwen
29
Describe rectus abdominus attachments
Inf= pubic tubercle + symphysis Sup = xiphid process and ribs 5-7
30
Describe rectus abdominus functions
Compression fo abdomen and flexion
31
Describe external oblique attachments
Hands in pockets Posterior/lateral = outer surface ribs 5-10 Anterior = pubic tubercle,iliac crest, Linea alba
32
Describe external oblique functions
Ipsilateral flexion Contra lateral axial rotation
33
Describe internal oblique attachments
Perpendicular to ext Post = tlf, iliac crest and Asis Medial/ant = linea alba, pubic tubercle, xiphoid process
34
Describe internal oblique fucnitons
Ipsilateral flexion and rotation
35
How does rectus sheath change
Aponeurosis of all the msucles encase rectus abdominus
36
Describe transervsus abdominus attachments
Transverse orientation Post/lateral = tlf, iliac crest, inner cartilages t6-t12 Ant = linea alba, pubic crest
37
Describe transervsus abdominus Fucntion
Compress abd contents = intrabdominla pressure
38
Describe where superior and inferior epihastri arteries come from
Internal thoracic —> superior epigastric External iliac —> inferior epigastric
39
Describe linea semilunaris
Aponeurosis comes in and converges — fascia of 3 msucles On rectus abdominus
40
Describe above accurate line
Aponeurosis ext oblique and 1/2 internal Rectus abd 1/2 internal oblique anf transversus abdominus
41
Describe below accurate line
Rectus against transversalis fascia
42
Name and describe all hiatuses of diaphragm
Ivc = t8 Aorta = t12 ESO= t10
43
Name and describe all arcuate ligaments
Median = aorta under, equivalent to aortic hiatus Medial = Psoas under Lateral = quadratus lumborum under
44
Describe iliacus
Attach to iliac fossa and assist in hip flexion - bc attaches to femur
45
Describe iliopsoas
Attaches to lesser trochanter of femur - psoas major an iliacus come together
46
Describe psoas minor attachment
T12-l1 to pubis
47
Describe psoas minor fucntion
Lumabr flexion
48
Describe psoas minor innervation
Ant rami l1
49
Describe psoas major innervation
Ant rami l1-l3
50
Describe psoas major Fucntion
Assist with lumbar flexion and hip flexion
51
Describe psoas major Attachments
Vertebral bodies t12-l4 to lesser trochanter femur
52
Describe quadratus lumborum attachments
Iliac crest to rib 12 Attaches to l1-4 tps
53
Describe quadratus lumborum Innervation
Ant rami t12-l4
54
Describe quadratus lumborum Fucntion
Closes space Bilateral extension Unilateral ipsilateral lateral flexion

ANAT 314 (27 decks)

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