Congenital metabolic defects of pigments (porphyrins) derived from the oxygen-carrying moleculehemoglobinin red blood cells may occur. Faulty or deficient production of hemoglobin leads toanemiaorred blood celldefects categorized assickle-celldisease andthalassemias. Congenital bleeding disorders may involve...
of surface area available for the exchange of oxygen and carbon dioxide during breathing. This produces symptoms of shortness of breath, coughing, and wheezing. In severe emphysema, difficulty in breathing leads to decreased oxygen intake, which causes headaches and symptoms of impaired mental ...
Five Common Rabbit Illnesses Bunny Breed and Size Guide: Mini Lop (Holland Lop) Rabbits The 10 Best Pet Rabbit Breeds for Children Recognizing a Long-Haired Bunny Moult The Ultimate Guide to Dwarf Rabbit Care
In addition, there are “silent strokes,” so called because they often exhibit no (or few) obvious symptoms. However, this type of stroke can do permanent damage to your brain over time. Like all strokes, a silent stroke occurs when part of your brain’s oxygen supply gets cut off, bu...
Ischemic colitis.This is when blood flow to your colon slows down or stops. The lack of oxygen causes damage to your intestine. The blockage can happen slowly over time, such as when cholesterol builds up in your arteries. Or it can happen all of a sudden from a blood clot or from a...
When you briefly stop breathing because of sleep apnea, the oxygen levels in your blood drop. This triggers a brain reflex that wakes you up long enough to start breathing again. These repeated awakenings keep you from spending enough time in the deep stages of sleep. The more serious your...
A myocardial infarction (myo=muscle + cardium=heart+ infarction=death) or heart attack occurs when the sudden blockage of a coronary artery, usually because ofblood clot, causes damage and death to heart muscle. The heart is an electric pump with the purpose of sending oxygen-rich blood throug...
Doing some form of exercise, especially an aerobic workout, improves blood flow and delivers oxygen directly to the brain tissue, saysJocelyn Bear, PhD, a board-certified neurologist based in Boulder, Colorado. Breaking a sweat also releases brain-derived neurotropic factors, or growth factors, ...
Root rot is common in Senetti plants and is often caused by overwatering. If your plant’s roots constantly sit in too much water, they’ll not find any oxygen to aspire. The roots get deprived of nutrients and oxygen and die. They often turn black and mushy, creating a suitable enviro...
In acute stress, this response triggers the release of substances called catecholamines, which include epinephrine, norepinephrine, and cortisol, from the adrenal glands. These substances prepare the body to react to immediate danger by increasing heart rate, increasing oxygen delivery to the brain, ...