The Cardiovascular System Flashcards
Narrowing or stricture of duct or canal
Stenosis
Restoration of normal heart rhythm by electrical shock
Cardioversion
Area of tissue death(necrosis) caused by loss of oxygen(ischemia) as a result of obstruction of circulation to the area.
Infarction
Ways to assess the heart (2)
Rate(speed)/Rhythm(intervals)
What are the structures of the Cardiovascular System?
Blood vessels, heart
How much does the heart weight?
Less than 1 pound
What are the functions of the Cardiovascular System?
Transport Oxygen+Nutrients to the body, transport waste products from cells to the kidneys for excretion, distribute hormones and antibodies throughout the body, help control body temp+ maintain electrolyte balance(homeostasis)
What are the 3 types of circulation in the cardiovascular system?
Hepatic, systemic, and pulmonary circulation
How many chambers does the heart have?
4 chambers
What are the top chambers of the heart called?
Left and Right Atria
(receives incoming blood)
What are the bottom chambers of the heart called?
Left and Right Ventricles
(pump blood out of heart)
How many layers of tissue does the heart have?
3 layers
What is in the right atrium that acts as a pacemaker?
SA nodes
(Specialized sinoatrial) heart would beat about 40 times per minute without it
What are the 3 main types of blood vessels?
Arteries, Veins, Capillaries
What do arteries do?
Bring blood away from the heart
What do arteries do?
Bring blood away from the heart
What do veins do?
Bring blood back to the heart
What are capillaries?
Microscopic vessels that carry blood between arterial and venous vessels
What are thicker Arteries or Veins?
Arteries
Deoxygenated blood enters the right atrium of the heart from the body through the what?
Superior and Inferior Vena Cavas
Blood is pumped from the heart to the body by the largest artery of the body? What it this called?
Aorta
Ways to asses the heart?
Measuring Blood pressure, pulse. Listening to heart sounds, biomarkers(blood work), cardiac catheter, electrocardiography.
Normal pulse rate for an adult?
60-100 beats per minute
NAME: Different locations to count pulse
Radial artery (wrist), carotid artery(throat), brachial artery(on arm; used for blood pressure), temporal(close to ear), femoral(by groin), popliteal (behind knee), pedal(foot), posterior tibial(close to foot)