Cardio Vascular System Flashcards
What does the SA node (primary pacemaker) due?
The Sinoatrial node starts the heart contraction of atria & starts the AV node
What does the AV node due?
The atrioventricular node delays the signal for contraction and sends a signal the bundle of his
What is the bundle of his?
The bundle of his is the splits into the left and the right side and leads to the perkinje fibers
What is the function of the right side of the heart?
- pulls the blood from your body
- the blood goes from your heart to your lungs
What is the function of the left side of the heart?
- takes oxygenated blood from lungs to body
What is left congestive heart failure?
blood pooling in the lungs, while laying down blood fills the alveoli
What is right congestive heart failure?
- adema, swelling of the extremities
- increase clots, increase cerebrovascular accident (stroke), increase MI (heart attack)
Symptoms of LCHF?
coughing, shortness of breath, dizzy/lightheaded, fatigue/tired, increased heart rate
Symptoms of RCHF?
shortness of breath, rapid heart rate, sweating, dizzy/lightheaded, fatigue/tired
What does the cardiac nerve do?
the cardiac nerve speeds up the contraction of the heart
What does the vagus nerve do?
the vagus nerve slows down the contraction of the heart
What is LBB?
LBB is left bundle branch, which comes from the bundle of his
What is RBB
RBB is right bundle branch which comes from the bundle of his
What does the LBB and RBB turn into?
the LBB and RBB split into perkenji fibers
What is an EKG/ECG?
an electrocardiogram that records the electrical signals or impulses in the heart
Where can you get and EKG/ECG?
hospitals, doctors offices, operating rooms, ambulances
What does an EKG/ECG detect?
abnormal heart rhythm, coronary heart disease, if you have had a previous heart attack ,if you are currently having a heart attack
What tells you someone has had a heart attack?
the patient will have elevated enzymes in the blood stream
What is the biggest cause to arrythmia?
chemo
What is the doctor most likely to recommend if the patients symptoms come and go?
doctor might recommend continuous monitoring like wearing a small patch for 24-48 hours, or a monitor they wear for 30 days but only activates for a few minutes when they are having symptoms
What kind of diets do cardiac patients have?
cardiac patients have low salt diets to help lower their blood pressure
Where does the positive nerve impulse come from?
the front of the heart, the ventricles
Where does the negative nerve impulse come from?
the back of the heart, the atria
What is the order the electrical impulses goes through?
SA node -> atria -> AV node -> bundle of his -> left and right bundle branches -> ventricles
