Ch. 1 Anatomy

Question 1

Layers of Heart

Answer 1

Pericardium
1) Fibrous Pericardium- connective tissue, cont with vessels
2) Serous Pericardium- 3= parietal, space, visceral/epicardial
Heart Wall
1) Visceral/epicardial
2) Myocardial
3) Endocardial

Question 2

4 things in RA

Answer 2

-fossa ovalis, coronary sinus valve, crista terminalis (SA node), pectinate muscle (RA/LA auricle)

Question 3

3 Layers of Arterial Vessels

Answer 3

1) Adventia- fiberous connective tissue
2) Media- muscle
3) Intima- smooth endo, connective

Question 4

Heart Sounds

Answer 4

S1- TV/MV closure- beginning of systole
S2- PV/AV closure- beginning of diastole
S3- filling of ventricle- MV open- diastole after S2
S4- filling of atrium- before S1

Question 5

Femoral Lateral to Medial

Answer 5

• nerve
• artery
• vein

Question 6

LCA Branches

Answer 6

1- LAD- interventricular sulcus, diagonals, septal arteries

2- Circumflex- obtuse marginals

Question 7

RCA Branches

Answer 7

right atrioventricular sulcus, acute marginals

• 50% first branch = conus artery
• 50% first branch= sinoatrial nodal branch

Question 8

Coronary Dominance

Answer 8

of PDA at crux
67% off RCA
15% off circumflex/LCA
18% both

Question 9

Coronary Veins

Answer 9

1) coronary sinus

2) anterior cardiac system- drain directly into RA (small cardiac vein, azygos- drains spine, ab, thoracic, thesbian)

Question 10

Aortic Size

Answer 10

2.5 cm diameter

Question 11

Internal vs External Carotid

Answer 11

Internal- brain, eyes, posterior communicating

External- neck, face