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Clinical Anatomy 1 Aryssara > Thorax > Flashcards

Thorax Flashcards

1
Q

The intercostal nerves, arteries, and veins are positioned deep to the ___________.

A

Internal intercostal muscles.

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2
Q

The intercostal veins, arteries, and nerves are all positioned directly inferior to the ______.

A

ribs

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3
Q

The internal thoracic artery is positioned posterior (deep) to the __________.

A

first 6 costal cartilages.

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4
Q

The left phrenic nerve passes _______ to the root of the left lung.

A

anterior

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5
Q

The left phrenic nerve is positioned lateral to the _______

A

pericardial sac.

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6
Q

The left phrenic nerve passes lateral to the __________.

A

ascending aorta.

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7
Q

The right phrenic nerve is positioned _______ to the SVC and pericardial sac.

A

lateral

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8
Q

The right phrenic nerve passes anterior to the ___________.

A

root of the right lung.

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9
Q

The azygous vein (arch) passes _______ to the right main bronchus.

A

superior

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10
Q

What are the boundaries of the thoracic cavity?

A

Posterior- spine
Anterior- sternum
Inferior- diaphragm
Superior- Superior thoracic aperture

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11
Q

What are the general contents of the thoracic cavity?

A

Primary organs of respiratory and cardiovascular systems.

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12
Q

What are the compartments of the thoracic cavity?

A

Right and left pleural, superior and inferior mediastinum.

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13
Q

What is contained in the right and left pleural cavities?

A

The lungs

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14
Q

What are the components of the thoracic wall?

A

Skin, subcutaneous tissue, ribs, and intercostal muscles.

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15
Q

What is the function of the thoracic wall?

A

Protection, respiration, and muscles attachment of thorax.

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16
Q

What are the 3 types of ribs?

A

True, False, and Floating.

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17
Q

What are true ribs?

A

They have direct cartilagenous attachment to sternum.

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18
Q

What are false ribs?

A

They have indirect cartilagenous attachment to sternum.

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19
Q

What are floating ribs?

A

They don’t have attachment to sternum.

20
Q

What are the 3 ribs joints and their synovial classification?

A

Costovertebral, costotransverse, and sternocostal.

All are plane.

21
Q

What joint connects from the head of the rib to the vertebral body?

A

Costovertebral

22
Q

What joint connects from the costal tubercle to the transverse process?

A

Costotransverse

23
Q

What joint connects from the sternum to the costal cartilage?

A

Sternocostal

24
Q

Where is the scalene tubercle and what attaches to it?

A

On the 1st rib.

Anterior scalene muscle attaches from it to 1st rib.

25
Q

The 1st rib contains grooves for the ___________.

A

Subclavian artery and vein.

26
Q

Where is the jugular notch located?

A

Superior aspect of manubrium.

27
Q

Where are the clavicular notches and what are their functions?

A

On the superior aspect of manubrium, on either side of the jugular notch.

Function- articulates manubrium to clavicle.

28
Q

How many costal notches are on the manubrium and for which ribs?

A

1 and first rib.

29
Q

What is the are the attachments of the external intercostal muscles?

A

From rib to rib oriented from superior-lateral to inferior-medial (down and in)

30
Q

What are the actions of the external intercostal muscles?

A

Elevation of ribs.

31
Q

What innervates the external, internal, and innermost intercostal muscles?

A

Intercostal nerves (segmental)

32
Q

What are the attachments of the internal and innermost intercostal muscles?

A

from rib to rib oriented superior-medial to inferior-lateral (down and out)

33
Q

What are the actions of the internal and innermost intercostal muscles?

A

Depression of ribs.

34
Q

What are the attachments of the transversus thoracis muscles?

A

From posterior sternum to costal cartilages

35
Q

What are the actions of the transversus thoracis muscles?

A

Depression of ribs.

36
Q

What is the innervation of the transversus thoracis muscles?

A

Intercostal nerves (segmental)

37
Q

What are the attachments of the diaphragm?

A

From the xiphoid process, inner surface of the lower ribs and costal cartilages, lumbar vertebrae via the crura to the central tendon.

38
Q

What are the actions of the diaphragm?

A

Inspiration (negative thoracic pressure by inferior displacement)

39
Q

What is the innervation and common spinal segments of the diaphragm?

A

Phrenic nerve

C3-5

40
Q

Which are the upper intercostal nerves?

A

T1-6

41
Q

Which are the thoracoabdominal (lower intercostal) nerves?

A

T7-11

42
Q

Which is the subcostal nerve?

A

T12

43
Q

What is the major landmark of T4 innervation?

A

Nipples

44
Q

What is the major landmark of T6 innervation?

A

Skin over xiphoid process

45
Q

What is the major landmark of T10 innervation?

A

Umbilicus

Clinical Anatomy 1 Aryssara (16 decks)

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