Nervous system
The nervous system is the body's complex network of nerves and cells that carry messages to and from the brain and spinal cord to different parts of the body. It is essential for coordinating voluntary and involuntary actions, such as moving a muscle or digesting food. The nervous system is a quick and complex communication system made up of neurons that send signals rapidly, allowing us to react to our environment, feel sensations, and process thoughts and emotions.
There are two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS includes the brain and spinal cord that process information and make decisions. The PNS consists of the network of nerves that branch out from the CNS, reaching the rest of the body and controlling both the crucial functions our bodies perform automatically, like breathing, and responses we consciously control, like walking or typing.
Maintaining a healthy nervous system is important for overall well-being, as it impacts everything from movement and sensory perception to thoughts and behavior.
An ABG (arterial blood gas) test measures levels of oxygen, carbon dioxide, and acidity in the blood to assess lung and kidney function.
Absence from work is when an employee is not present during scheduled working hours due to various reasons like illness or personal commitments.
Acetaminophen is a common medication used to relieve pain and reduce fever, often found in over-the-counter and prescription products.
Acne is a common skin condition that occurs when hair follicles become clogged with oil and dead skin cells, leading to pimples and other lesions.
Acute Coronary Syndrome (ACS) is a serious heart condition where blood flow to the heart is suddenly reduced, requiring immediate medical attention.
"Acute" refers to a medical condition that appears suddenly and resolves over a short time.
Acyclovir is a medication used to treat infections caused by certain viruses like herpes and shingles, reducing the severity and duration of symptoms.
Adalimumab is a medication used to treat inflammatory conditions by reducing inflammation through targeting specific proteins in the body.
Addiction is a compulsive engagement with substances or behaviors that negatively impact one's life.
Addison's disease is a rare condition leading to insufficient hormone production by the adrenal glands, causing symptoms like fatigue and low blood pressure.
ADHD is a common condition affecting attention, impulse control, and activity level, characterized by symptoms like distractibility, impulsivity, and restlessness.
ADL (activities of daily living) refers to essential daily self-care tasks, crucial for maintaining independence and well-being.
The adrenal glands are small, triangle-shaped organs on top of the kidneys that produce hormones essential for stress response, metabolism, and blood pressure regulation.
Adrenaline (epinephrine) is a hormone and medication that helps the body respond to stress and is used in medical emergencies, like severe allergic reactions.
An allergen is a substance that can trigger an allergic reaction in certain people.
Allergies are the immune system's overreaction to typically harmless substances such as pollen or certain foods, causing symptoms from sneezing to potential severe reactions.
An allergist is a medical specialist who diagnoses and treats allergies and related immune system reactions.
An allergy is an immune system response to a harmless substance, mistakenly identified as a threat.
ALP (alkaline phosphatase) is an enzyme found in the body that helps in protein breakdown, with its levels indicating liver and bone health.
Alprazolam is a medication used to treat anxiety and panic disorders by calming the brain through its effects on natural chemicals in the body.
Filter