Anatomy exam 2 Flashcards Preview

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Flashcards in Anatomy exam 2 Deck (13):
1

What vertebral level is the sternal angle (transverse thoracic plane) at?

T4/T5

2

What vertebral angle is the bottom of the heart at?

T8/T9

3

What spinal level is the phrenic nerve?

C3,4,5

4

What is a "water-bottle" silohuette on chest xray indicative of?

Pericardial effusion. An acute pericardial effusion is a cardiac tamponade

5

What is becks triad?

muffled heart sound, jugular distension, and low arterial pressure

6

Where is the transverse pericardial sinus?

behind the pulmonary trunk and aorta; permits expansion of vessels during systole

7

what is the oblique sinus?

permits expansion of LA during exhalation

8

Where is the coronary sulcus? Where is the anterior interventricular sulcus?

between the right auricle and right ventricle; between right and left ventricles

9

Which layer is thickened in coronary artery disease?

Tunica intima

10

What arteries are most suscepitble to coronary artery disease?

1. left anterior descending
2. Right coronary artery
3. left circumflex

11

When does coronary artery perfusion take place?

during diastole when the myocardium is relaxed

12

what is the innervation of the heart? (parasympathetic and sympathetic)

parasympathetic- CN X-vagus
sympathetic-T1-T4

13

Why do transplanted hearts have no external nervous input?

because the heart is innervated by autonomic nerves that are too small and too many to reconnect