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Anatomy 2nd Half > Thoracic Wall And Lungs > Flashcards

Thoracic Wall And Lungs Flashcards

1
Q

What type of joint is the Manubriosternal joint and the xiphisternal joint

A

Symphysis joint
- but xiphisternal joint ossifies and becomes a synostosis joint

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2
Q

Superior thoracic aperture border

A

Posterior: T1
Lateral: medial border rib 1 and coastal cartilage
Anterior: superior Manubrium

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3
Q

Superior thoracic aperture content

A

Pleural cavity, apex of lungs, brachial plexus, subclavian A&V, esophagus, trachea, common corotid A, internal jugular A, phrenic N, vagus N

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4
Q

Inferior thoracic aperture border

A

Post: T12
Lat: rib 12, tip of rib 11, rib 10, coastal margin
Ant: xyphoid process

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5
Q

Inferior thoracic aperture content

A

Almost all of diaphragm, esophagus, inferior vena cava, aorta

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6
Q

Sternocoast joint types

A

Rib 1 + manubrium = synchondrosis
Rib 2-7 + sternum = synovial planar jt

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7
Q

Costotransverse jt

A

Coastal tubercle of rib and articulate facet on TP of vertebrae
- synovial planar

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8
Q

Costovertebral Jt

A

Synovial
Ribs 2-9 + demifacet of 2 adj vertebrae
- vertebrae at same level and level above
Rib 1,10-12 + demifacet of 1 adj vertebrae at same level

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9
Q

Costovertebral joint ligaments

A

Radiate lig (intrinsic)
Intra articular (extrinsic from rib head to intervertebral disk)

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10
Q

Direction of external and internal intercostal

A

External: anterior and inferior
Internal and inner most: posterior and inferior

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11
Q

Branches of ventral rami thoracic spinal nerves

A

1 motor branch to each or the 3 intercostal muscles within each space
3 cutaneous branches in each space
- lateral cutaneous
- ant cutaneous
- post cutaneous

Travel between internal and inner most intercostal muscle

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12
Q

Subclavian A feeds into ___ which runs parallel to the ___ and then branches into the ___ which runs in the intercostal space

A

Internal thoracic, anterior internal thoracic A

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13
Q

Posterior intercostal A is a branch of ___\

A

Descending aorta

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14
Q

Visceral pleura of lung is in touch with ___ and parietal pleura is in touch with ___

A

Lung tissue, rib cage

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15
Q

What are gutters formed by

A

Parts of the parietal pleura become continuous with one another

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16
Q

Parts of the parietal pleura

A

Costal part- inner surface of ribs
Diaphragmatic- covers top of diaphragm
Mediastinal - in touch with mediastinum

17
Q

Inferior border of lung anterior, laterally and posterior

A

Rib 6,8,10

18
Q

Lateral surface of lung content

A

Apex
Horizontal fissure (R lobe only)
Oblique fissure
Costo diaphragmatic recess

19
Q

Medial surface of lung content

A

Hilum at the center with root of lung content
- branches of bronchii
- branches of pulmonary V
- branches of pulmonary A

20
Q

Mediastinum borders

A

Sup: superior thoracic aperture
Inf: diaphragm
Lat: left and right pleural cavities
Ant: sternum
Post: vertebral column

21
Q

Superior mediastinum border and content

A

Above T4/T5
Trachea, esophagus, vagus N, phrenic N, arch of aorta (brachiocephalic, left common carotid and left subclavian A) brachiocephalic V, internal jugular V, subclavian V

22
Q

Inferior mediastinum content

A

Thymus

23
Q

Posterior mediastinum border and content

A

Between heart and vertebral column
Left view: accessory hemiazygos, hemiazygos, descending aorta
Right: esophagus, azygos V
Middle: thoracic duct, sympathetic trunk

24
Q

Heart surface markings

A

Sup right: 3rd CC, 1 inch right from sternum
Sup left: 2nd intercostal space, 1 inch left of sternum
Inf right: 6th CC and 1jnch left of sternum
Inf left/apex: 5th intercostal space, 3 in left of sternum

25
Q

Layers of heart

A

Visceral serious layer/epicardium
- attached to heart
Parietal/pericardium
- attached to inner surface of fibrous pericardium
Fibrous pericardium
- thick irregular connective tissue
- becomes connective tissue with root of heart

26
Q

5 surfaces

A

Posterior, anterior, inferior, left and right pulmonary surfaces

27
Q

Parts of the posterior surface

A

Reflection between parietal and visceral layer
Right atrium
- superior and inferior vena Cava
Left strum
- 2 left and 2 right pulmonary veins
Coronary sinus
Coronary/atrioventricular sulcus

28
Q

anterior surface content

A

Left ventricle
- ascending aorta
Right ventricle
- pulmonary trunk
Left and right auricle
Anterior interventricular sulcus (between ventricles)

29
Q

Inferior surface of lung

A

Left and right ventricle
Posterior interventricular sulcus

30
Q

Right atrium content

A

Pectinate muscle (makes up wall)
Interatrial septum (left wall on R atrium)
- fossa ovalis: closed temporary opening between atria
Coronary sinus office: opening of coronary sinus
Tricuspid valve: regulates flow from right atrium to ventricle

31
Q

Right ventricle content

A

Tricuspid valve
Pulmonary semi lunar valve
Trabeculae carnea
Papillary muscle
Chordea tendinae
Moderator band

32
Q

Left atrium

A

Pectinate muscle
Interarterial septum
- fossa ovallis
4 pulmonary veins
Bicuspid valves

33
Q

Left ventricle

A

Trabculae carnea
Papillary muscle
Chordea tendinae
Aortic semilunar valves

34
Q

Right coronary A path

A

Descending on right side through coronary sulcus —> enters inferior surface —> turns into posterior interventricular Artery in posterior interventricular groove

35
Q

Left coronary A

A

Behind pulmonary A and splits soon after into anterior interventricular A and circumflex A

36
Q

When are semilunar valves open

A

Open with ventricle contraction

37
Q

Cardiac veins

A

Small cardiac vein
Middle - travels with posterior interventricular artery
Great - travels with anterior interventricular artery

38
Q

Heart conduction

A

SA node sending impulse through atrium to AV node which sends impulse through ventricles via AV node
AV bundles travels through interventricular septum and divides into 2 bundles of His
This divides into Perkinje fibers that supply trabaculae carnea

Anatomy 2nd Half (5 decks)

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