Chest and Back Flashcards

1
Q

Rhomboid major and minor mm

A
Superficial back mm.
O: nuchal ligament, C7-T5 transverse processes
I: medial border of scapula
Inn: dorsal scapular n.
BS: dorsal scapular a.
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2
Q

Pectoralis major m

A

Superficial chest m
O: sternum, ribs, clavicle
I: lateral aspect of inter tubercular groove
Inn: lateral and medial pectoral nn.
BS: pectoral branch of thoracoacromial trunk

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3
Q

Pectoralis minor m

A
Chest muscle deep to pec major m.
O: ribs 3-5
I: coracoid process
Inn: medial pectoral n
Bs: pectoral branch of thoracoacromial trunk
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4
Q

Serratus anterior m

A
Superficial inferior (lateral) chest muscle
O: ribs 1-8, 9, lateral wall of thorax
I: anterior medial border of scapula
Inn: long thoracic n (C5, 6, 7)
Bs: lateral thoracic a
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5
Q

Subclavius m

A

Superior chest m
O: rib 1 sternal end
I: inferior middle half of clavicle
Inn: n to subclavius (C5, 6 ventral ramus)
Bs: clavicle branch of thoracoacromial trunk

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6
Q

Trapezius m

A

Superficial extrinsic back m
O: superior nuchal line external occipital protuberance, spinous processes of C7-T12
I: lateral middle of clavicle, acromion, scapular spine
Inn: CN XI (spinal accessory n.)
Bs: transverse cervical a

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7
Q

Levator scapulae m

A
Superficial superior back m
O: C1-C4 transverse processes
I: superior medial border of scapula
Inn: dorsal scapular n (ventral C3, 4, 5)
Bs: dorsal scapular a
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8
Q

Latissimus Dorsi m

A
Superficial back m
O: T7-T12 spinous processes, iliac crest, inferior ribs 3, 4
I: floor of interubercular groove
Inn: thoracodorsal dorsal n (C6-8)
Bs: thoracodorsal a
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9
Q

Deltoid m

A
Intrinsic shoulder m
O: lateral clavicle, scapular spine
I: deltoid tuberosity (on humerus)
Inn: axillary n
Bs: deltoid branch of thoracoacromial trunk
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10
Q

Supraspiantus m

A
Intrinsic shoulder m
O: supraspinatus fossa
I: greater tubercle superior
Inn: suprascapular n (C5, 6)
Bs: suprascapular a
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11
Q

Infraspinatus m

A
Intrinsic shoulder m, 
O: Infraspinatus fossa
I: middle greater tubercle 
Inn: suprascapular n (C5, 6)
Bs:  suprascapular a
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12
Q

Teres minor m

A
Shoulder m
O: superior lateral border of scapula
I: inferior greater tubercle
Inn: axillary n (C5, 6)
Bs: subscapular and scapular circumflex AA
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13
Q

Teres major m

A

Intrinsic shoulder m
O: posterior inferior angle of scapula
I: medial aspect of intertubercular groove
Inn: lower subscapular n (C5, 6)
Bs: subscapular and scapular circumflex AA

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14
Q

Subscapularis m

A
Intrinsic shoulder m
O: subscapular fossa
I: lesser tubercle of humerus
Inn: upper and lower subscapular nn (C5, 6)
Bs: subscapular a
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15
Q

Serratus posterior superior m

A
Intermediate intrinsic back m
O: ligamentum nuchae and C7-T3 spinous processes 
I: upper border of ribs 2-5
Inn: segmental intercostal nn #1-4
Bs: segmental intercostal aa
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16
Q

Serratus posterior inferior m

A
Intermediate extrinsic back m
O: T11-L2 spinous processes 
I: lower border of ribs 9-12
Inn: last 4 segmental intercostal nn
Bs: segmental intercostal aa
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17
Q

Splenius capitus m

A

Superficial intrinsic upper back m
O: ligamentum nuchae and T1-6 spinous processes
I: Lateral mastoid process and supior nuchal line
Inn: segmental dorsal rami of upper cervical nn
Bs: segmental intercostal aa

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18
Q

Splenius cervicis m

A
Superficial extrinsic back m
O: T3-6 spinous processes
I: C1-3 transverse processes 
Inn: segmental dorsal rami of lower cervical nn
Bs: segmental intercostal aa
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19
Q

Iliocostalis lumborum m

A

Intermediate intrinsic back m, part of erector spinae
O: T11-L5 spinous processes, iliac crest, sacrum
I: lower border of ribs 7-12 at angle
Inn: segmental dorsal rami
Bs: segmental intercostal aa

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20
Q

Iliocostais thoracis m

A
Intermediate intrinsic back m, part of erector spinae
O: upper border of ribs 7-12,  at angle
I: ribs 1-6, lower border at angle
Inn: segmental dorsal rami
Bs: segmental intercostal aa
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21
Q

Muscles of the erector spinae

A

Spinalis, longissimus, iliocostalis mm

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22
Q

Muscles of the transversospinalis

A

Semispinalis, multifidus, rotatores mm

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23
Q

Longissimus m

A

Intermediate intrinsic back m, part of erector spinae
O: spinous/transverse processes of thoracic/cervical vertebrae
I: ribs 9, 10; transverse spinal processes C2-6,mastoid process
Inn: segmental dorsal rami
Bs: segmental intercostal aa

24
Q

Spinalis m

A
Intermediate intrinsic back m,  part of erector spinae
O: T1-12 transverse processes
I: ???
Inn: segmental dorsal rami
Bs: segmental intercostal aa
25
Q

Semispinalis capitus m

A
Deep intrinsic back m, of neck
O: C3-T6 transverse processes
I: midline to mastoid process btwn superior and inferior nuchal lines
Inn: segmental dorsal rami
Bs: segmental intercostal aa
26
Q

Rectus capitus posterior major m

A

Deep intrinsic back m, suboccipital, of neck
O: C2 spinous process
I: lateral inferior nuchal line and occipital bone
Inn: suboccipital n (C1) dorsal ramus
Bs: vertebral and occipital aa

27
Q

Rectus capitus posterior minor m

A
Deep intrinsic, suboccipital back m
O: C1 posterior tubercle
I: medial inferior nuchal line
Inn: suboccipital n (C1) dorsal ramusm
Bs: vertebral and occipital aa
28
Q

Superior obliquus capitus m

A
Deep intrinsic, suboccipital back m
O: C1 transverse process
I: occipital bone btwn superior and inferior nuchal lines
Inn: suboccipital n (C1) dorsal ramus
Bs: vertebral and occipital aa
29
Q

Inferior obliquus capitus m

A
Deep intrinsic , suboccipital back m
O: C2 spinous process
I: C1 transverse process
Inn: suboccipital n (C1) dorsal ramus
Bs: vertebral and occipital aa
30
Q

Branches of the thoracoacromial a

A

Clavicular, pectoral, deltoid, acromial branches

31
Q

Clavicular branch of the thoracoacromial a supplies which m?

A

Subclavius m

32
Q

Pectoral branch of the thoracoacromial a supplies which mm?

A

Pectoralis minor and Pectoralis major mm

33
Q

Deltoid branch of the thoracoacromial a supplies which m?

A

Deltoid m

34
Q

Cephalic vein runs where?

A

Runs through the deltopectoral groove (btwn pec major and deltoid mm) and dives under the clavicle at the deltopectoral triangle

35
Q

Subcutaneous components of the breast are ?

A

Mammary glands and fat = majority,
Deep to surface:
Glands – lactiferous ducts – lactiferous sinuous – (lactiferous ducts again) – nipple

36
Q

Lymphatic drainage of the breasts goes to?

A

Mostly to axillary lymph nodes (in armpits)

37
Q

Blood supply to breasts is by ?

A

Internal and lateral thoracic aa

38
Q

3 layers of epithelial are ?

A

(superficial to deep):

  1. True epithelial
  2. Mesothelia
  3. Endothelia
39
Q

Clavicle bone

A

Art: maunbrium (sternum), acromion (scapula)

Holds scapula away from thorax

40
Q

Scapula bone

A

Art: clavicle, humerus

Triangular, has…
Scapular spine, acromion, coracoid process, glenoid fossa

41
Q

Humerus bone

A

Art: scapula (glenoid fossa), ulna/radius

Contains…
Head, anatomical neck, greater and lesser tubercles, intertubercular groove, deltoid tuberocity

42
Q

Subclavian artery becomes what after passes 1st rib?

A

Subclavian a – axillary a – brachial a – radial and ulnar aa

43
Q

Branches of the axillary a?

A
  1. Superior thoracic
  2. a) thoracoacromial trunk
    b) lateral thoracic a
  3. a) subscapular trunk
    b) posterior humeral circumplex
    c) anterior humeral circumflex
44
Q

Arterial branches of the subscapular trunk

A
  1. Circumflex scapular a

2. Thoracodorsal a

45
Q

Dorsal root carries what type of neural info?

A

Dorsal - sensory
*has cell body (root ganglion) close to spinal cord

(“IN the Back”)

46
Q

Ventral root carries which type of neural info?

A

Ventral - motor
*has cell body out nearer the mm

(“IN the Front”)

47
Q

5 segment types of the brachial plexus?

A

(medial to lateral)

  1. Root
  2. Trunk
  3. Divisions
  4. Cords
  5. Branches
48
Q

Triangle of auscultation is where?

A

Triangle with minimal muscle cover, good space for listening to breathing
Mm:
Trapezius, latissimus dorsi, rhomboid major

49
Q

M responsible for first 15 degrees of arm rotation

A

Supraspinatus m

50
Q

M responsible for most of arm rotation (degrees 15-90)

A

Deltoid m

51
Q

Sternoclavicular joint is where?

A

Synovial Shoulder joint, articulates with clavicle and maunbrium

Attaches the interclavicular and costoclavicular ligaments too!

52
Q

Acromioclavicular joint - where, what f(x)?

A

Art: clavicle and acromion of scapula

Synovial shoulder joint, often dislocated in accidents/injuries

53
Q

Glenohumeral joint - where?

A

Art: head of humerus, glenoid cavity of scapula

54
Q

Triangular space - borders, contents

A

Window to see circumflex scapular a
Superior: Teres minor
Inferior: Teres major
Lateral: triceps long head

55
Q

Triangular interval - borders, contents

A

See radial nerve and deep brachial artery here

Sup: Teres major
Lat: triceps lateral head
Medial: triceps long head

56
Q

Quadrangle space

A

Where axillary n and posterior humeral circumflex a pass through

Sup/inf: Teres minor/major
Med: triceps long head
Lat: humerus (and triceps lateral head)

57
Q

good location for epidural injection

A

sacral hiatus,
bc = opening in bone,
= cauda equina (Not spinal cord anymore)