• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/39

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

39 Cards in this Set

  • Front
  • Back
Superficial layer. Protects, anchors and prevents overfilling.
Fibrous Pericardium
Parietal layer, Visceral layer and Pericardial cavity.
Serous Pericardium
Heart wall
Epicardium
Visceral layer of the serous pericardium
Epicardium
Cardiac muscle
Myocardium
Lines all chambers. Continuous with endothelial lining of blood vessels.
Endocardium
internal separation of atria chambers
interatrial septum
internal separation of ventricle chambers
interventricular septum
external separation of atria and ventricles
coronary sulcus (atrioventricular groove)
external separation of ventricles
interventricular sulci
Vessels entering the right atrium.
Superior vena cava – from body
Inferior vena cava – from body
Coronary sinus – from heart
Vessels entering left atrium.
Right and left pulmonary veins – from lungs
project into the ventricular cavities
Papillary muscles
Vessel leaving the right ventricle
Pulmonary trunk – to lungs
Vessel leaving the left ventricle
Aorta – to body
Right side is the pump for the...
Pulmonary circuit
Left side is the pump for the...
Systemic circuit
Right atrium  tricuspid valve  right ventricle  pulmonary semilunar valve  pulmonary trunk  pulmonary arteries  LUNGS
 pulmonary veins  left atrium
Pulmonary Circuit Path
Left atrium  bicuspid valve  left ventricle  aortic semilunar valve  aorta  systemic arteries  BODY TISSUES
 superior/ inferior vena cava  right atrium
Systemic Circuit Path
Circuit with short, low-pressure circulation
pulmonary circuit
Circuit where blood encounters much resistance in the long pathways
systemic circuit
the functional blood supply to the heart muscle itself
Coronary Circulation
Thoracic pain caused by a fleeting deficiency in blood delivery to the myocardium.
Cells are weakened
Angina pectoris
Prolonged coronary blockage.
Areas of cell death are repaired with noncontractile scar tissue.
Myocardial Infarction (Heart Attack)
Ensure unidirectional blood flow through the heart.
Heart valves
Prevent backflow into the atria when ventricles contract.
Tricuspid valve (right).
Mitral valve (left).
Atrioventricular Valves (AV)
anchor AV valve cusps to papillary muscles
Chordae tenineae
Prevent backflow into the ventricles when ventricles relax.
Aortic semilunar valve.
Pulmonary semilunar valve.
Semilunar Valves (SL)
striated, short, fat, branched, and interconnected cells
Cardiac muscle cells
Junctions between cells. Includes:
Desmosomes – anchor cardiac cells
Gap junctions – allow passage of ions between cells
Ensures whole unit contraction
Intercalated discs
A network of noncontractile (autorhythmic) cells that initiate and distribute impulses to coordinate contraction of the heart
Intrinsic cardiac conduction system
modified by the ANS
Heartbeat
Cardiac centers located in...
Medulla Oblongata
activated by emotional or physical stressors
Sympathetic nervous system
opposes sympathetic effects.
Heart rate slows.
Parasympathetic nervous system
contraction
Systole—contraction
relaxation
Diastole
takes place in mid-to-late diastole
Ventricular filling
occurs in early diastole
Isovolumetric relaxation