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Cardiovascular > Anatomy 7 > Flashcards

Anatomy 7 Flashcards

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1
Q

The internal thoracic (Mammary) artery is

A

An artery of the anterior chest wall

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2
Q

Intercostal Spaces .. there are

A

9 anterior & 11 posterior

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3
Q

The internal thoracic artery supplies

A

The skin & muscle of the anterior thoracic cage, the breast, & the superior aspect of the abdominal wall.

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4
Q

Origin of the internal mammary artery

A

The 1st part of the Subclavian Artery

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5
Q

The internal thoracic artery travels

A

Inferiorly along the the inner surface of the anterior chest wall approximately 2 cm lateral to the sternal margin.

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6
Q

The internal thoracic artery descends between

A

The internal intercostal muscle & the costal cartilage anteriorly, & the sternocostalis muscle posteriorly.

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7
Q

At the level of the 1st rib, the internal thoracic artery is crossed

A

Anteriorly by the phrenic nerve

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8
Q

The internal mammary artery terminates

A

At the 6th space, it bifurcates into the terminal branches Superior epigastric artery & Musculophrenic artery.

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9
Q

Branches of the Internal Thoracic Artery

A

1) Anterior intercostal arteries (Spaces 1-6)
2) Pericardiophrenic artery
3) Perforating cutaneous branches
4) Medial mammary branches
5) The musculophrenic artery
6) The Superior epigastric artery

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10
Q

The perforating cutaneous branches supply

A

The superior six internal intercostal muscles, pectoralis major muscles, & the overlying skin.

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11
Q

The medial mammary branches originate from

A

The 2nd to 4th spaces

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12
Q

The medial mammary branches supply

A

The tissue of the breast.

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13
Q

During high vascular demand (lactation), the medial mammary branches

A

Enlarge in diameter

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14
Q

Provides blood supply for the last 3 intercostal spaces (7-9)

A

Musculophrenic Artery

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15
Q

A distal continuation of the internal thoracic artery

A

The Superior Epigastric Artery

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16
Q

The superior epigastric artery supplies

A

The superior aspect of the rectus abdominis muscle.

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17
Q

In the umbilical region, the superior epigastric artery anastomoses with

A

The inferior epigastric artery

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18
Q

The intercostal arteries course through the thoracic wall between the ribs, with the exception of

A

The 10th & 11th intercostal spaces.

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19
Q

Each intercostal space is supplied by

A

1) A large posterior intercostal artery & its collateral branch
2) A small pair of anterior intercostal arteries

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20
Q

The anterior intercostal arteries… There are

A

9 pairs for the upper 9 intercostal spaces

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21
Q

In the upper 6 intercostal spaces, the anterior intercostal arteries originate from

A

The internal thoracic artery

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22
Q

In the 7th, 8th, & 9th spaces, the anterior intercostal arteries originate from

A

The musculophrenic artery

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23
Q

The anterior intercostal arteries end by

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A

Anastomosing with the posterior intercostal artery & its collateral branch of the same space.

24
Q

The anterior intercostal arteries supply

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A

1) Intercostal muscles
2) Pectoral muscles
3) Breast & Skin

25
The arteries that supply the back muscles, vertebral column, spinal cord segments, & the overlying skin.
The posterior intercostal arteries
26
The posterior intercostal artery travels in
The costal groove, between the intercostal vein & nerve.
27
No# of the posterior intercostal arteries
11
28
The first & second posterior intercostal arteries originate from
The superior intercostal artery SICA, a branch of the costocervical trunk.
29
The third to eleventh posterior intercostal arteries originate from
They arise directly from the posterior surface of the thoracic aorta.
30
Each posterior intercostal arteries lies at first between
The pleura & the internal intercostal membrane as far as the costal angle.
31
The posterior intercostal arteries pass between
The intercostal muscles, at the neurovascular plane.
32
In the costal groove, the posterior intercostal arteries run
below the vein & above the intercostal nerve VAN
33
At the angle of the rib, the posterior intercostal arteries give
A collateral branch which runs along the upper border of the rib below.
34
The posterior intercostal artery gives the collateral branch at
The Costo-chondral junction
35
The posterior intercostal arteries end by
anastomosing with the anterior intercostal branches from the internal thoracic or musculophrenic artery.
36
Branches of the posterior intercostal & subcostal arteries
1) Dorsal ( Posterior) branch 2) Collateral branch 3) Mammary branches 4) Right bronchial artery 5) Muscular branches 6) Lateral cutaneous branch
37
The dorsal (Posterior) branch emerges close to the origin of the artery & it follows
The posterior ramus of the spinal nerve
38
Dorsal (Posterior) branches give off
1) Spinal branches 2) Musculocutaneous branches
39
Mammary branches arise from
The posterior intercostal arteries of the 2nd, 3rd, & 4th spaces.
40
Mammary branches supply
The pectoral muscles, skin, & mammary gland.
41
The right bronchial artery may arise from
The 3rd posterior intercostal artery
42
Muscular branches supply
Intercostal & pectoral muscles
43
The lateral cutaneous branch accompanies
The lateral cutaneous branch of the intercostal nerve.
44
The 10th & 11th posterior intercostal arteries terminate in
The muscles of the abdominal wall due to the absence of the 10th & 11th anterior intercostal arteries.
45
There are _ anterior intercostal veins in each space of the anterior 9 spaces.
2
46
The anterior intercostal reins follow the same course as the arteries & drain into
Internal thoracic veins (1-6 spaces) Musculophrenic veins (7-9 spaces)
47
There are _ posterior intercostal vein in each space of the posterior 11 spaces.
1
48
The azygos & hemiazygos veins will eventually empty into
SVC
49
The 1st space posterior intercostal veins on the right side end in
The right Brachiocephalic vein
50
The 2nd & 3rd space posterior intercostal veins on the right side end in
Unite to form the right superior intercostal vein that ends in the arch at the azygos vein.
51
The 4th-8th space posterior intercostal veins on the right side end in
Azygos vein
52
The 9th - 11th space posterior intercostal veins on the right side end in
Aryges Vein
53
The 1st space posterior intercostal veins on the left side end in
The left brachiocephatic vein
54
The 2nd & 3rd space posterior intercostal veins on the left side end in
Unite to form the left superior intercostal vein which ends in the left brachiocemphatic vein.
55
The 4th-8th space posterior intercostal veins on the left side end in
Superior (Accessory) hemi azygos vein
56
The 9th -11th space posterior intercostal veins on the left side end in
Inferior hemi azygos vein

Cardiovascular (10 decks)

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