The apex of the heart is located at this intercostal space on the left side of the body.
What is the 5th intercostal space.
100
The out wall of the right atrium is composed of those muscles.
What are pectinate muscles?
100
Sensation from th pericardium is carried by these three branches of this nerve.
What are C3, C4, and C5 of the phrenic nerve?
100
Blockage of this artery is serious because it may disrupt the cardiac conduction system in the interventricular septum.
What is the anterior ventricular artery/left anterior descending artery?
200
The anterior surface of the heart, also known by this name because of its boundaries, is formed mainly by the right ventricle.
What is the sternocostal surface?
200
This ridge separates the smooth wall from th muscular wall in the right ventricle.
What is the crista terminalis?
200
Preganglionic sympathetic axons synapse in these locations.
What are the cervical sympathetic ganglia?
200
Identifying this cardiac sinus in order to bypass major cardiac vessels is useful during open heart surgery.
What is the transverse pericardial sinus?
300
The parietal pericardium consists of these two layers.
What are the outer fibrous layer and the inner serous layer?
300
These fibrous tendons and muscles prevent valve cusps from entering into the atria during ventricular contraction.
What are chordae tendinae and papillary muscles?
300
The left recurrent laryngeal nerve hooks around the aortic arch next to this structure in the superior mediastinum.
What is the ligamentum arteriosum?
300
The membranous and muscular parts of th ventricular septum develop from different embryological origins, and so the septum is a common place for these problems.
What are ventricular septal defects?
400
This ridge separates each atrium from its corresponding ventricle.
What is the coronary sulcus?
400
These are irregular bands of cardiac muscle lining th inside of the ventricle.
What are trabeculae carnae?
400
Pain from a diseased myocardium enters the spinal cord and is felt as referred pain from these dermatomes.