Adventitious
Adventitious
Adventitious (/ædvɛnˈtɪʃəs/), derived from the Latin word "adventus" meaning "coming", is a term used in various fields of medicine. It generally refers to something that is not inherent or innate, but rather, occurs accidentally or spontaneously.
In Medicine
In the field of medicine, adventitious is often used to describe sounds, such as breath sounds or heart sounds, that are not normally heard in a healthy individual. These sounds are typically indicative of some underlying health condition.
For example, adventitious breath sounds are abnormal sounds that are heard over a patient's lungs and airways. These may include wheezes, crackles, rhonchi, and stridor. These sounds can be indicative of various respiratory conditions such as pneumonia, asthma, or chronic obstructive pulmonary disease (COPD).
Similarly, adventitious heart sounds are extra or additional sounds heard during a heartbeat. These may include heart murmurs, gallop rhythms, or clicks. These sounds can be indicative of various heart conditions such as valvular heart disease, heart failure, or congenital heart defects.
In Pathology
In pathology, adventitious refers to any abnormal or extra growth. For example, an adventitious cyst is a cyst that is not normally present but has developed due to some pathological process.
Related Terms
- Adventitia: The outermost layer of a blood vessel, also known as the tunica adventitia.
- Adventitious root: A root that grows from a non-root tissue, such as a stem or leaf.
External links
- Medical encyclopedia article on Adventitious
- Wikipedia's article - Adventitious
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