Four

Four is a number that comes after three and before five. In the field of medicine, the number four has several significant associations.

Medical Significance of Four[edit | edit source]

In the field of medicine, the number four is often associated with a variety of conditions, syndromes, and anatomical structures. Some of these include:

Tetralogy of Fallot: This is a congenital heart condition that is characterized by four anatomical abnormalities of the heart.

Quadriplegia: This is a condition where all four limbs are paralyzed due to damage to the spinal cord.

Four Humors: In ancient and medieval medicine, it was believed that the body was governed by four humors: blood, phlegm, black bile, and yellow bile.

Gang of Four (medicine): This refers to four important signs in medicine: heart rate, blood pressure, respiratory rate, and temperature.

In Anatomy[edit | edit source]

The number four also has significance in anatomy. For example:

Four Lobes of the Brain: The human brain is divided into four main lobes: the frontal lobe, parietal lobe, occipital lobe, and temporal lobe.

Four Chambers of the Heart: The human heart is divided into four chambers: the left atrium, right atrium, left ventricle, and right ventricle.

In Pharmacology[edit | edit source]

In pharmacology, the number four is significant in the following ways:

Four Stages of Anesthesia: In general anesthesia, there are four stages: induction, excitement, surgical anesthesia, and overdose.

Four Classes of Drugs: There are four main classes of drugs: stimulants, depressants, hallucinogens, and opioids.

See Also[edit | edit source]

Four Resources
Need Help Finding a Doctor? Need help finding a doctor or specialist anywhere in the world? Explore our world directory. WikiMD's DocFinder can assist you in locating millions of physicians.	Medical Knowledge Access the latest research - Most recent articles Ongoing trials.