Heart and Circulatory System Review

Practice vocabulary flashcards based on the lecture notes covering the heart, circulatory system, and related medical concepts.

Right Ventricle

Pumps deoxygenated blood to the lungs.

SA Node

The pacemaker of the heart that sets the rate of heartbeat.

Ectopic Rhythm

A heartbeat originating outside the SA node.

Deoxygenated Blood

Type of blood that the right side of the heart receives.

Stroke Volume

The amount of blood pumped by the heart with each beat.

Ejection Fraction

The percentage of blood that is pumped out of the heart with each contraction.

Congestive Heart Failure

A chronic condition in which the heart does not pump blood as well as it should.

Pulse Pressure

The difference between systolic and diastolic blood pressure.

Mean Arterial Pressure

The average pressure in a person's arteries during one cardiac cycle.

Chyme

The acidic fluid that passes from the stomach to the small intestine, consisting of gastric juices and partly digested food.

Bile

A digestive fluid produced by the liver that helps in the digestion of fats.

Hepatic Portal Vein

The vein that carries nutrient-rich blood from the digestive organs to the liver.

CCK (Cholecystokinin)

A hormone that stimulates the gallbladder to contract and release bile.

Basilar Artery

An artery supplying blood to the brainstem and cerebellum.

Atrial Depolarization

The electrical activity in the heart represented by the P wave in an EKG.

Ventricular Depolarization

The electrical activity in the heart represented by the QRS complex in an EKG.

Ventricular Repolarization

The recovery phase of the ventricles represented by the T wave in an EKG.