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CV Anatomy > Duffy Lecture 4 > Flashcards

Duffy Lecture 4 Flashcards

1
Q

When does blood go into the coronary arteries

A

During diastole

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2
Q

What does MI do to EF

A

MI decreases EF

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3
Q

Branches of left coronary artery & supply

A

Anterior interventricular & circumflex SUPPLIES: LA LV Part of RV IV septum including conducting tissue

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4
Q

Branches of circumflex artery

A

Sinoatrial branch (40%) and marginal branch

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5
Q

Branches of right coronary artery and supply

A

Sinoatrial branch (60%)

Marginal branch

AV nodal branch

Posterior interventricular branch (85%)

SUPPLIES:

  • RA
  • RV
  • Part of AV septum
  • Part of LV
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6
Q

What does the anterior cardiac vein drain into

A

directly into RA

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7
Q

What do the thesbian veins (venae cordis minimae) drain into

A

Into myocardium and then into atria and ventricles

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8
Q

Contributions to coronary sinus

A

Small Middle and Great vein

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9
Q

Definition of Syncytium

A

Every cell is directly in contact with another so the beating of 1 cell moves electrical activity to the next

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10
Q

What supplies the IV septum

A

Left coronary artery => MI may impact conductance as bundles are here

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11
Q

What does the ANS regulate

A

HR Force of contraction CO

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12
Q

What nerve is responsible for parasympathetic innervation

A

Vagus (cardiac plexus) LONGER PRE-GANGLIONIC FIBRES

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13
Q

What nerve is responsible for sympathetic innervation

A

Sympathetic trunk (cardiac plexus) SHORTER PRE-GANGLIONIC FIBRES Visceral afferents travel from heart to the CNS carrying info regarding cardiac homeostasis & pain

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14
Q

Branches of visceral descending aorta

A

Pericardial Bronchial oesophageal

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15
Q

Branches of parietal descending aorta

A

Mediastinal IC & subcostal

Superior phrenic

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16
Q

What do the 1st and 2nd posterior IC arteries join to give

A

Superior IC artery

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17
Q

IVC emerges @

A

T8 right phrenic nerve

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18
Q

Oesophagus emerges @

A

T10 vagi - when you’re fighting and flying, no need for innervation to oesophagus => PS innervation

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19
Q

Aorta emerges @ & its branches (2)

A

T12 thoracic duct and azygos vein associated with it

BRANCHES: Celiac trunk Superior mesenteric artery

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20
Q

Where does the abdominal aorta enter the abdomen

A

Behind median arcuate ligament

21
Q

Where does abdominal aorta end

A

@ L4 (bifurcation)

22
Q

what are the 4 unpaired branches of the abdominal aorta

A

T12 - coeliac trunk L1 - superior mesenteric L3 - inferior mesenteric L4 - median sacral

23
Q

What are the 4 paired branches of the abdominal aorta

A

T12 - inferior phrenic L1 - middle adrenal L2 - renal L2 - gonadal

24
Q

What does the internal carotid supply

A

Cranial cavity - supplies brain and some of the cerebellum

25
Q

What does the external carotid supply

A

Supplies muscles of face, head, neck

26
Q

Some Look Forward Others Are Posterior

What are the branches of the external carotid @ C4

A

Some Look Forward Others Are Posterior

  • Superior thyroid
  • * Lingual
  • * Facial
  • Occipital
  • Ascending laryngeal
  • Posterior auricular
  • [Maxillary (terminal)]
  • * Superficial temporal (terminal)
27
Q

What are the branches of the internal carotid

A

Does not give off any branches in the neck - Anterior cerebral - Middle cerebral

28
Q

Branch of the subclavian

A

Posterior cerebral

29
Q

What is a stroke

A

Rapidly developing loss of brain function due to disturbance in blood supply to the brain -> due to ischaemia, caused by blockage (thrombosis, arterial embolism) or haemorrhage

30
Q

Effect of stroke on anterior cerebral area

A

Contralateral hemiplegia & anaesthesia

31
Q

Effect of stroke on middle cerebral area

A

Contralateral hemiplegia & anaesthesia and/or aphasia

32
Q

Effect of stroke on posterior cerebral area

A

Contralateral hemianopia

33
Q

Effect of stroke on vertobrobasilar area

A

Focal brainstem syndrome

34
Q

What indicates a higher risk of stroke

A

Atrial Fibrillation - Clot in atrial appendage moves from atria -> ventricles -> carotid (least path of resistance) to result in stroke

35
Q

Blood supply to the heart

A
36
Q

Anterior sulci

A
37
Q

Posterior sulci

A
38
Q

Coronary arteries

A

Circumflex wraps around left appendage

39
Q

Branches of coronary arteries

A
40
Q

Where does the coronary sinus drain into

A

RA

41
Q

Coronary veins

A
42
Q

Conducting system of the heart

A
43
Q

Cardiac conduction diagrams

A
44
Q

Step 1 of cardiac conduction

A
45
Q

Step 2 of cardiac conduction

A
46
Q

End of impulse conduction in the heart

A
47
Q

Cardiac innervation

A
48
Q

Pre-ganglionic vs post-ganglionic fibres of the sympathetic trunk and vagus nerve

A
49
Q

Vagus nerve and the heart

A

CV Anatomy (6 decks)

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