CV System Anatomy 1 Flashcards

1
Q

In what chambers are the SA and AV nodes?

A

Right atria

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2
Q

Where does blood from cardiac veins flow into?

A

Through the coronary sinus into the right atrium

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3
Q

How much serous fluid lies between the parietal and visceral layer of the pericardium?

A

Approximately 10-15 ml or cc

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4
Q

What work together to prevent tricuspid and mitral valves from buckling open?

A

Chordae tendinae and papillary muscle. Papillary muscles pull on the chordae tendinae (which attach to AV valves).

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5
Q

When do coronary arteries fill?

A

During diastole blood backs up and fills up the semilunar valves of the aortic valve, entering coronaries

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6
Q

Where does the subclavian artery turn into the axillary artery?

A

At the lateral border of first rib

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7
Q

At what level of the spine does the vertebral artery enter the transverse foramen?

A

C6

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8
Q

What are the 2 sources for blood to the cns?

A

The vertebral artery

The internal carotid

Internal carotid artery supplies the anterior and middle aspects of the brain. Vertebral artery supplies the posterior brain.

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9
Q

What does the common carotid ascend the neck with?

A

Internal jugular vein

Vagus nerve

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10
Q

What happens to the common carotid between the hyoid bone and upper thyroid cartilage?

A

It bifurcates into internal and external carotid arteries.

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11
Q

What artery supplies all the visceral, musculoskeletal and dental structures of the head and neck apart from the brain and orbit?

A

The external carotid artery. Internal head structures are supplied by the internal carotid artery.

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12
Q

What artery supplies the orbit? Where does it come from?

A

Opthalmic artery that branches off from the internal carotid

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13
Q

What is the terminal branch of the external carotid?

A

The superficial temporal

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14
Q

What is a major source of blood for deep skull cavity, part of the orbit, teeth, muscles of mastication, and the dura mater?

A

Maxillary artery (from the external carotid artery)

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15
Q

What supplies the anterior part of brain?

A

The internal carotid. This supplies the anterior and middle aspects of the brain. Vertebral artery supplies the posterior brain.

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16
Q

What do the 2 vertebral arteries form?

A

The basilar artery

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17
Q

What supplies the posterior part of brain?

A

The basilar artery from the 2 vertebral arteries

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18
Q

What purpose does the circle of Willis serve?

A

It encircles the pituitary gland and the optic chiasm. It unites the brain’s anterior and posterior blood supply, equalizes the 2 hemisphere’s blood pressures, and provides alternative routes for blood to reach the brain if a vessel becomes compromised

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19
Q

From what artery does the superior cerebellar branch?

A

Basilar

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20
Q

What branches off from the vertebral artery?

A

Posterior and anterior spinal arteries

Posterior inferior cerebellar

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21
Q

What branches off from the basilar artery?

A

Superior cerebellar

Anterior and middle inferior cerebellar

Labyrinthine

Pontine

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22
Q

What drains blood from scalp and face?

A

External jugular. Versus the internal carotid artery supplies internal head structures (like the brain).

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23
Q

What drains blood from brain, superficial face, and neck?

A

Internal jugular vein

24
Q

Which jugular vein joins up with subclavian vein?

A

External jugular

25
Q

Where does the Azygos Vein drain into?

A

The superior vena cava

26
Q

What crosses anterior to the scalene tubercle of the 1st rib?

A

The subclavian vein

27
Q

What do internal jugular and subclavian become?

A

Brachiocephalic vein

28
Q

What travels superficial to SCM

A

External jugular

29
Q

What structures in the dura mater collect venous blood from the brain?

A

Sinuses

30
Q

Where do the sinuses drain to?

A

The internal jugular vein

31
Q

What structure drains blood from the brain?

A

Cavernous sinus

32
Q

What structure provides collateral blood flow through the head?

A

The pterygoid plexus

33
Q

What vein travels on the radial side of the arm?

A

The cephalic vein

34
Q

What vein travels on the ulnar side of the arm?

A

Basilic. Basilic and cephalic veins are connected via the median cubital vein.

35
Q

What vein crosses the cubital fossa?

A

Median cubital

36
Q

The basilic vein joins with what to form the inferior portion of the axillary vein?

A

The brachial vein

37
Q

What merge into the popliteal vein?

A

Anterior and Posterior tibial veins

38
Q

What veins drain into the popliteal vein?

A

Ant. and post. tibial veins

Small saphenous vein

39
Q

What does the popliteal vein become?

A

Femoral vein

40
Q

What drains into the femoral vein?

A

Great saphenous vein

41
Q

What vein travels from the medial foot along the medial calf?

A

Saphenous vein

42
Q

What vein begins behind medial malleolus and crosses popliteal fossa?

A

Small saphenous vein

43
Q

What forms the portal vein?

A

Superior mesenteric vein

Splenic vein

44
Q

How does blood drain from the liver?

A

Via sinusoids into hepatic veins and into the inferior vena cava

45
Q

What drains the greater curvature of the stomach, spleen and pancreas?

A

The splenic vein

46
Q

What drains the transverse and the descending colon, sigmoid and rectum?

A

Inferior mesenteric vein

47
Q

Where does the inferior mesenteric vein drain?

A

Into the splenic vein

48
Q

What does the superior mesenteric vein drain?

A

Small intestine and ascending colon

49
Q

What lymphatic vessel drains the lower extremities?

A

Cisterna chyli

50
Q

What does the cisterna chyli flow into?

A

The thoracic duct (which flows into the subclavian vein then into the inferior vena cava)

51
Q

True or False: The upper Left side and the lower right and left side of the body’s lymph drains into the Thoracic duct?

A

True, the upper right side of the body (from lower costal margin up to head) drains into the right lymphatic duct, while the rest drains into the thoracic duct

52
Q

Where does the lymph of the right upper extremity and right neck flow?

A

Into the right lymphatic duct

53
Q

Where does the thoracic duct drain?

A

Into the left subclavian vein

54
Q

What makes up central lymphatic tissue?

A

Bone marrow and thymus. This is where stem cells proliferate into mature B and T lymphocytes. These cells then migrate from the bone marrow or thymus to secondary lymphoid organs.

55
Q

Parasympathetic stimulation of the heart via the vagus nerve innervates which two control center?

A

SA node and AV node

56
Q

What is the function of the carotid sinus reflex?

A

To maintain normal blood pressure in the brain. Carotid sinus contain baroreceptors that sense blood pressure changes.

57
Q

What makes up peripheral lymphoid tissue?

A

Lymph nodes, Peyer’s patches, spleen