However, objections have been raised against this argument. Nasal turbinates are absent or very small in some birds, such as ratites, Procellariiformes and Falconiformes. They are also absent or very small in some mammals, such as anteaters, bats, elephants, whales and most primates, although these animals are fully endothermic and in some cases very active. Furthermore, ossified turbinate bones have been identified in the ankylosaurid dinosaur Saichania. See also
Additional images
Notes
References
Wang, Xiaoming (2008) Dogs: Their Fossil Relatives and Evolutionary History Columbia University Press. ISBN 9780231509435.
This produces an osmotic diuresis.Signs and symptoms of diabetic ketoacidosis may include:
Ketoacidosis
Kussmaul hyperventilation (deep, rapid breathing)
Confusion or a decreased level of consciousness
Dehydration due to glycosuria and osmotic diuresis
Increased thirst
Fruity smelling breath odor
Nausea and vomiting
Abdominal pain
Impairment of cognitive function, along with increased sadness and anxiety
Weight lossHyperglycemia causes a decrease in cognitive performance, specifically in processing speed, executive function, and performance. Decreased cognitive performance may cause forgetfulness and concentration loss. Complications
In untreated hyperglycemia, a condition called ketoacidosis may develop because decreased insulin levels increase the activity of hormone sensitive lipase. The degradation of triacylglycerides by hormone-sensitive lipase produces free fatty acids that are eventually converted to acetyl-coA by beta-oxidation.Ketoacidosis is a life-threatening condition which requires immediate treatment. Symptoms include: shortness of breath, breath that smells fruity (such as pear drops), nausea and vomiting, and very dry mouth. Chronic hyperglycemia (high blood sugar) injures the heart in patients without a history of heart disease or diabetes and is strongly associated with heart attacks and death in subjects with no coronary heart disease or history of heart failure.Also, a life-threatening consequence of hyperglycemia can be nonketotic hyperosmolar syndrome.Perioperative hyperglycemia has been associated with immunosuppression, increased infections, osmotic diuresis, delayed wound healing, delayed gastric emptying, sympatho-adrenergic stimulation, and increased mortality. In addition, it reduces skin graft success, exacerbates brain, spinal cord, and renal damage by ischemia, worsens neurologic outcomes in traumatic head injuries, and is associated with postoperative cognitive dysfunction following CABG.