More Stuff About The Heart

Question 1

Midsternal line

Answer 1

Question 2

2nd rib

Answer 2

Question 3

Diaphragm

Answer 3

Question 4

Sternum

Answer 4

Question 5

Point of maximal intensity

Answer 5

Question 6

Pericardial cavity

Answer 6

Near the heart

Question 7

Pleural cavity

Answer 7

Near the left lung (anterior view)

Question 8

Spinal cord

Answer 8

Question 9

Epicardium

Answer 9

Superficial
-Continuous with visceral pericardium

Question 10

Myocardium

Answer 10

Medial
-Spiral bundles of cardiac muscle cells anchored by a fibrous skeleton

Question 11

Endocardium

Answer 11

Deep
-Continuous with the lining of blood vessels

Question 12

Pericardium

Answer 12

Superficial
-Protects, anchors, and prevents overfilling
-A thin double walled membranous sac, enclosing the heart.

Question 13

Atria

Answer 13

Separated internally by the internal septum

Question 14

Coronary sulcus

Answer 14

Atrioventricular groove
-Encircles the junction of the atria & ventricles

Question 15

Auricles

Answer 15

Increases the atrial volume

Question 16

Atrioventrical (AV) valves

Answer 16

Prevents back flow into the atria when ventricles contact…
-Tricuspid
-Mitral (bicuspid) valve
-Chordae tendineae… anchors the AV valve cusps to papillary muscles

Question 17

Semilunar (SL) valves

Answer 17

Prevents back flow into ventricles when ventricles relax
-Aortic semilunar valve
-Pulmonary semilunar valve