Pathophysiology

What is the Pathophysiology of Acute Coronary Syndrome?

The pathophysiology of Acute Coronary Syndrome (ACS) involves the accumulation of plaque within coronary arteries, leading to reduced blood flow to the heart muscle. This can result in unstable angina or myocardial infarction due to ischemia, typically triggered by plaque rupture and thrombosis.

What is the pathophysiology of Diabetes Type 1?

The pathophysiology of Type 1 Diabetes involves an autoimmune destruction of insulin-producing beta cells in the pancreas. This results in insufficient insulin production, leading to hyperglycemia and associated metabolic complications.

What is the pathophysiology of Constipation?

When motility in the gut slows, the colon absorbs more water, causing stools to become dry and hard, making them more difficult to pass. This can progress to impactions where stools become lodged in the rectum.

What is the pathophysiology of anaphylaxis?

Exposure to an allergen leads to IgE antibodies being created, which bind to receptors on mast cells and basophils. On re-exposure, the antigen attaches to the IgE antibodies, causing degranulation to occur. This results in large amounts of histamine being release which cause vasodilation, increased cell permeability and bronchospasm.

Physiology of fever?

Temperature is regulated by the hypothalamus. As pathogens invade, the immune response/inflammation

occurs, leading to the release of pyrogens. These pyrogens signal the hypothalamus to increase the body's temperature, promoting an environment less favorable for pathogens and enhancing immune function.

What is the pathophysiology of a seizure?

A seizure occurs due to abnormal electrical activity in the brain, often resulting from imbalances in neurotransmitters or excitation of susceptible cerebral neurons altering ion channel function and loss of inhibitory controlleading to uncontrolled motor or sensory activity.

What is the pathophysiology of asthma?

Asthma is characterized by chronic inflammation of the airways, leading to bronchoconstriction and increased mucus production. Triggered by allergens or irritants, this inflammation causes airway hyperresponsiveness and obstructed airflow, resulting in symptoms such as wheezing, coughing, and shortness of breath.

What is the pathophysiology of COPD?

Chronic Obstructive Pulmonary Disease (COPD) is characterized by persistent airflow limitation due to chronic inflammation of the airways and lung parenchyma, primarily caused by long-term exposure to irritants such as cigarette smoke. This inflammation leads to structural changes, decreased elastic recoil, and narrowing of the airways, resulting in difficulty breathing, increased sputum production, and frequent respiratory infections.