Pericardium/Heart Wall
The outer layer of the heart wall
What is Epicardium
Name the chambers of the heart
What is RA, RV, LA, LV
Deoxygenated blood flows through these valves
What is Tricuspid and Pulmonary semilunar valve
Muscles found in both atria
What is pectinate muscles
Sets the fundamental rhythm of the heart, 50-100 bpm
What is Sinoatrial node (SA Node)
The inner layer of the pericardium
What is Visceral pericardium
Name the semilunar valves of the heart AND how many cusps each?
What is Pulmonary semilunar valve and Aortic semilunar valve; 3 cusps each
The pulmonary veins carry which kind of blood
What is oxygen-rich blood
Finger-like muscular projections found in ventricles
What are papillary muscles
Spread the electrical signal of the heart throughout the myocardium
What are Purkinje fibers
This layer is 4 times thicker around the L ventricle than the Right ventricle
What is Myocardium
The muscle fibers of the heart are multi-diagonal and multi-directional for what purpose
To ensure strong, rhythmic contractions in unison
The first branch off the aorta delivering oxygen rich blood the the neck and head is:
What is Brachiocephalic Trunk
These chambers contain fibrous chords called chordae tendinea
What are the Ventricles
1. Represented by the QRS complex on an EKG.
2. What is masked behind this?
What is ventricular depolarization
What is atrial repoloarization
This layer of the heart wall also lines the valves
What is Endocardium
The purpose of compressions in CPR is to
What is force blood out of the heart into circulation
These 3 structures empty which kind of blood into the RA
What is the SVC, IVC, CS; deoxygenated
Ridges on the ventricular walls assisting conduction system of the heart
What are trabeculae carnae
The first heart sound ("lub") is which valves closing
What are AV valves
This structure anchors great vessels to the heart as well as the diaphragm through the central tendon
What is Fibrous pericardium
The Greek word for heart
What is Kardia
The three names for the first valve carrying oxygenated blood are:
What is Left AV valve; Bicuspid; Mitral
Structure in RA open during fetal circulation to bypass mother's pulmonary system
What is fossa ovalis
Ventricular relaxation is closest to this wave on an EKG
What is T wave