General Anatomy Chiro Essentials 5 Cardiovascular Anatomy 2 Flashcards
The heart is supply by what 2 branches that arise from the ascending aorta?
Right & Left coronary arteries
The right coronary artery runs in the anterior atrioventricular sulcus btwn the right auricle and the pulmonary trunk. What 6 structures of the heart does it supply?
right atrium right ventricle 30% left atrium SA node AV node Posterior 1/3 of the interventricular septum
How many branches does the right coronary artery have?
4
The Left coronary artery has 3 branches, what are they?
Circumflex
Anterior interventricular
Left marginal
What 3 areas does the left coronary artery supply?
left ventricle
70% left atrium
anterior 2/3 of the interventricular spetum
The Circumflex artery is a branch of which coronary artery?
Left
The coronary sinus drains 60-70% of the hearts venous blood via what 4 veins?
Great Cardiac (accompanies the anterior interventricular A) Small Cardiac (accompanies the right marginal A) Middle Cardiac (accompanies the posterior interventricular A) Oblique Cardiac
Where is the sino-atrial node located?
upper right atrium
Where is the Atrial-ventricular node located?
posteroinferior part of right atrium
*in the Triangle of KOCH
The bundle of his is located where? A. Left Atrium B. Interventricular septum C. right ventricle D. Left ventricle
interventricular septum
The SA node is innervated by what plexus?
Cardiac Plexus
The cardiac plexus innervated the SA node with sympathetic fibers from T1-T5 symp ganglia and parasympathetics from what cranial nerve?
CN X (10- Vagus)
Does the superficial or deep part of the cardiac plexus receive some contributions from the recurrent laryngeal nerves from the vagus?
Deep Cardiac plexus
What are the 3 branches of the aortic arch?
Brachiocephalic trunk
Left common carotid
Left subclavian
The right and left coronary arteries arise from what part of the aorta?
Ascending
How many bronchial branches come off the descending aorta?
3 bronchial branches
What are the 4 paired visceral branches of the abdominal aorta? *GRIM
Gonadal
Renal
Inferior Phrenic
Middle Adrenal
What are the 4 paired parietal branches of the abdominal aorta?
1st-4th lumbar arteries
The aorta ends at L4 and bifurcates into what?
Common iliac arteries
*which then divide into internal and external iliac arteries
Among the following UNpaired visceral branches of the abdominal aorta, which is found at T12? A. Celiac trunk B. Superior Mesenteric A C. Inferior Mesenteric A D. Median Sacral A
Celiac trunk
*got some 12’s in the trunk
Among the following UNpaired visceral branches of the abdominal aorta, which is found at L3? A. Celiac trunk B. Superior Mesenteric A C. Inferior Mesenteric A D. Median Sacral A
inferior mesenteric A