Heart Anatomy
The number of chambers in a human heart.
What is 4?
The color of blood.
What is red?
The molecule activated (cleaved) by prothrombin activator.
What is prothrombin?
Electrical reading of heart activity that includes a P wave, QRS complex, and T wave.
What is an EKG or ECG?
Term for the number of times your heart beats per minute/
What is heart rate?
The valve between the right atria and the right ventricle.
What is the right AV valve (or tricuspid)?
The organ that releases erythropoietin after hypoxia to stimulate erythropoiesis.
What is the kidney (or liver)?
The first step of hemostasis.
What is vascular spasms?
What are autorhythmic cells or pacemaker cells?
The branch of the autonomic nervous system that increases heart rate.
What is the sympathetic nervous system?
Heart strings that anchor AV valves to walls of ventricles.
What are chordae tendineae?
A type of anemia caused by a deficiency of vitamin B12.
What is pernicious anemia?
Vitamin needed for synthesis of many clotting factors.
What is vitamin K?
After atrial excitation, the structure that delays the electrical impulse before it is passed to the bundle branches.
What is the AV node?
The type of vessel in the vascular system that exhibits the greatest drop in mean systemic blood pressure.
What are arterioles?
A valve that does not close properly, causing blood to backflow and be re-pumped.
What is an incompetent valve?
The plasma membrane protein in an erythrocyte that gives it flexibility.
What is spectrin?
A clot that develops and persists in an unbroken blood vessel.
What is a thrombus?
An ECG tracing with junctional rhythm indicates a malfunction of this.
What is the SA node?
Sympathetic reflex initiated by increased blood in the atria; increases heart rate when moving from standing to lying down.
What is the atrial or Bainbridge reflex?
Structure in intercalated disk that allows force to be transferred between cardiac muscle cells.
Metabolized by bacteria and excreted in feces, causing a brown pigment
What is stercobilin?
During platelet plug formation, it gathers platelets together.
What is ADP?
The segment in an ECG that runs from the beginning of ventricular depolarization through ventricular repolarization.
What is the Q-T interval?
A type of shock caused by an abnormal distribution of blood; examples include spinal cord trauma, overdose, and sepsis.
What is distributive?