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Anatomy > THORACIC WALL > Flashcards

THORACIC WALL Flashcards

1
Q

Superior part of the trunk between the neck and the abdomen

A

Thoracic cavity

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2
Q

What is the thoracic cavity formed by?

A

12 ribs, 12 vertebrae, sternum, costal cartilage

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3
Q

muscle attachments in thoracic cavity

A

Support the shoulder girdle

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4
Q

Manubrium facets

A

Clavicular and costal

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5
Q

Stefan jugular notch

A

T3-t4

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6
Q

Junction for the manubrium and body

A

Sternal angle

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7
Q

2nd rib attachment site

A

Sternal angle

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8
Q

Location of aortic arch (left recurrent laryngeal nerve wraps around aorta )

A

Sternal angle

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9
Q

Rib attachments

A

Posteriorly to vertebrae

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10
Q

Costotransverse ligament

A

Transverse process

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11
Q

Costovertebral ligament

A

Vertebral body

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12
Q

Ribs are __________ to the sternum via costal cartilage

A

Anteriorly

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13
Q

Right lung lobes

A

Superior, middle, inferior

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14
Q

Separate upper and middle lobe

A

Horizontal fissure

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15
Q

Separates lower and other lobes

A

Oblique fissure

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16
Q

Left lobe, oblique fissure separates

A

Superior and inferior

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17
Q

Lingula equivalent

A

Right

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18
Q

Lungs two membranes

A

Viscera and parietal pleura

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19
Q

Lines the lungs

A

Viscera

20
Q

Lines the thoracic wall

A

Parietal

21
Q

Space between pleura filled with serous fluid
to lubricate and reduce friction

A

Pleural cavity

22
Q

Pneumothorax

A

Air

23
Q

Hemothorax

A

Blood

24
Q

Chylothorax

A

Lymph fluids

25
Q

Primarily ribs 2-6
• Increase the anterior-posterior
diameter of the thoracic cavity

A

Pump handle

26
Q

Lower 6 ribs
• Focuses on the middle (lateral)
portion of the ribs to increase the lateral diameter of the ribs

A

Bucket handle

27
Q

Muscles of respiration - rib to rib

A

Intercostals

28
Q

Primary muscle of inspiration

A

Diaphragm

29
Q

Pectoralis major origin and insertion

A

O: clavicular head (medial half of clavicle)
Sternal head (superior 6 costal cartilages)
I: lateral lip of intertubercular sulcus of humerus

30
Q

Pectoralis major innervation

A

Lateral and medial pectoral nerves

31
Q

Action of Pectoralis major

A

Adduct and medially rotate
Aid in inspiration

32
Q

Pectoralis minor o and I

A

3-5 ribs near costal cartilages
I: medial border and superior surface of Coracoid proce

33
Q

Pectoralis minor nerve

A

Medial pectoral nerves (c8, t1)

34
Q

Action of Pectoralis minor

A

Stabilizes scapula and draws anteriorly and inferiorly

35
Q

Sternocleidomastoid origin and insertion

A

O- Sternal head: manubrium
Clavicular head:medial 1/4 of clavicle
I: mastoid process cranium

36
Q

Nerve sternocleidomastoid

A

Spinal accessory nerve (c11)

37
Q

Action of sternocleidomastoid

A

Cervical flex ion and contralaterL rotation

38
Q

Scalenes origin and insertion

A

O: transverse process
Insertion: 1st and 3nd ribs

39
Q

Scalenes action

A

Elevate ribs and aid in inspiration

40
Q

Scalene innervation

A

Ventral rami c3-c8

41
Q

Intercostal orientation
• Anterior to posterior

A

External intercostal
Internal intercostal

Intercostal vein, artery, and nerve
Innermost intercostal Transversus thoracis or subcostal (depending on location in thoracic cavity)

42
Q

Superior to Inferior (VAN)

A

• Intercostal Vein
• Intercostal Artery
• Intercostal Nerve

43
Q

Intercostal arteries come
from

A

Aorta

44
Q

From Descending Aorta:

A

Pass
anteriorly and anastomoses
with the internal thoracic
Thoracic artery

45
Q

The Subclavian artery comes
off the aortic arch and

A

supplies the internal thoracic
artery.

Anatomy (16 decks)

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