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Anatomy > Axillary Fossa > Flashcards

Axillary Fossa Flashcards

1
Q

Up and down

A

Up: Subclavian artery
Down: Axillary sheath (Vagina axillaries)

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2
Q
A

Up: Anterior Axillary fold
Down:Posterior Axillary fold

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3
Q

Apex and floor

A

Apex: (cervico-axillary canal)
Floor: Armpit skin &axillary fascia

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4
Q
A

Up: Costocoracoid membrane
Down: Axillary membrane

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5
Q

What’s at the Anterior wall of Axillary fossa

A

Clavipectoral fascia

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6
Q
A

Up: Costocoracoid ligament
Down left to right: Suspensory lig of axilla(pulls skin up), Pectoralis minor, Costocoracoid memb, Pectoralis major.

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7
Q
A

Up: Subscapularis
Down: Latismus dorsi

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8
Q
A

Right up: Pectoralis major
Right down: Pectoralis minor
Arrow: Serattus Anterior
Left: Intertubercular groove of humerus

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9
Q
A

Left up: Short head of bicep
Left down: Long head of bicep
Down: Cords of brachial plexus

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10
Q

Axilla content

A

Axillary a-v-lymph nodes
Cords of brachial plexus
Biceps-coracobrachialis
Loose connective tissue
Axillarysheath (cont. w prevertebral fascia)
Axillary process of breast – tail of Spence
Branches from intercostal nerves

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11
Q
A
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12
Q
A

Up: Cephalic vein
Down: Lateral pectoral nerve

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13
Q
A

Subclavian vein

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14
Q
A

Catheterisation for central venous pressure

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15
Q

Part of Axillary Artery

A

Branch 1– Above muscle
Branch 2– Below muscle
Branch 3

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16
Q

Branch 1 of Axillary artery

A

Superior (highest)(supreme) thoracic a

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17
Q

Branch 2 of Axillary artery

A

Thoraco-acromial trunk
pectoral, acromial, clavicular, deltoid brr
Lateral thoracic a

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18
Q

Branch 3 of Axillary artery

A

Anterior circumflexhumeral a
Posterior circumflexhumeral a
Subscapular a (thickest branch)
Thorocodorsal a
Circumflex scapular a

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19
Q

Right

A

Up: Superior thoracic artery
Down: Coracoacromial trunk

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20
Q

Left

A

Up: Subscapular artery
Under: CIrcumflex lateral artery
Down: Thoracodorsal artery

21
Q

What is the scapular network

A

Rete scapulae

22
Q

Up to down

A

Subclavian artery, superior thoracic artery, lateral thoracic artery, Long thoracic nerve, Serratus anterior muscle

23
Q
A

Right: Branches to breast
Left: Lateral mammary artery

24
Q
A

Right: Branches to breast
Left: Lateral mammary artery

25
Q

Down left to right (Axillary spaces)

A

Medial/ Triangular space
Quadrangular/ Lateral space
Triangular interval transmitting: Anastomotic atery and exposing radial nerve

26
Q
A
27
Q
A

Cephalic vein

28
Q
A

Right: Ariolar vein
Left: Thorcoaxillary

29
Q

AxillaryVeinTributaries

A

Subscapular v
Circumflex scapular v
Thoracodorsal v
Anterior humeral circumflex v
Posterior humeral circumflex v
Lateral thoracic v
Thoraco-epigastric vv
Areolar vv
Cephalic v

30
Q

Drainage of subclavian trunk (right)

A

Jugular trunk
Subclavian trunk
Left superior intercostal vein

31
Q

Drainage of subclavian trunk (left)

A

Jugular trunk
Subclavian trunk
Superior vena cava

32
Q

Left and right

A

Left: Anterior axillary lymph nodes
Right: Posterior axillary lymph nodes

33
Q
A

Lateral group of axillary lymph nodes

34
Q

Sentinel Lymph node dissection

A

If you remove the mass you inject a dye around the location of the mass through lymphatics the dye goes to 1 of the axillary nodes. Next, you dissect the axilla. If you find cancer cells in axillary lymph node– dissect more. If not– treated. Node where dye goes is called sentinel node.

35
Q

What is the network of nerves in the Axilla

A

Brachial plexus

36
Q

What happens if during birth if you pull the head laterally too much?

A

The upper cords of the brachial plexus will be damaged. Known as Fetal dystocia

37
Q

What forms the spinal nerve?

A

Dorsal- Ventral root and Spinal cord

38
Q
A

Right:
Spinal cord
Dorsal root (ganglion)
Ventral root
Left: (spinal nerve division)
Dorsal ramus
Ventral ramus

39
Q

What forms a plexus?

A

Ventral rami (before intervening body parts)
Dorsal rami doesnt

40
Q

What plexuses does the ventral rami form?

A

Cervical plexus,Lumbar plexus and sacral plexus

41
Q

Do thoracal spinal nerve form plexuses?

A

No

42
Q

Number of pairs of spinal cord? (spinal nerves)

A

C8
T12
L5
S5
Co1
31 spinal nerves

43
Q
A

Skin area of pair of spinal nerves

44
Q

Dermatomes

A

Sensory areas foreachpair of spinal nerves
Usually parallel to each other

45
Q
A
46
Q

Roots

A

Between scalene muscles

47
Q

Trunks

A

Posterior triangle of neck

48
Q

Division

A

Behind clavicle

Anatomy (17 decks)

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