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Other transient features are normal: vertex waves and sleep spindles are seen in normal sleep. There are types of activity that are statistically uncommon, but not associated with dysfunction or disease. These are often referred to as "normal variants". The mu rhythm is an example of a normal variant.
Normal T wave. In electrocardiography, the T wave represents the repolarization of the ventricles. The interval from the beginning of the QRS complex to the apex of the T wave is referred to as the absolute refractory period. The last half of the T wave is referred to as the relative refractory period or vulnerable period.
Eagle is the common name for the golden eagle, bald eagle, and other birds of prey in the family of the Accipitridae.Eagles belong to several groups of genera, some of which are closely related.
The golden eagle (Aquila chrysaetos) is a bird of prey living in the Northern Hemisphere.It is the most widely distributed species of eagle.Like all eagles, it belongs to the family Accipitridae.
Electroantennography or EAG is a technique for measuring the average output of an insect antenna to its brain for a given odor.It is commonly used in electrophysiology while studying the function of the olfactory pathway in insects.
A shortcut for determining if the QRS axis is normal is if the QRS complex is mostly positive in lead I and lead II (or lead I and aVF if +90° is the upper limit of normal). [59] The normal QRS axis is generally down and to the left, following the anatomical orientation of the heart within the chest. An abnormal axis suggests a change in the ...
The bald eagle is placed in the genus Haliaeetus (), and gets both its common and specific scientific names from the distinctive appearance of the adult's head. Bald in the English name is from an older usage meaning "having white on the face or head" rather than "hairless", referring to the white head feathers contrasting with the darker body. [4]
Schematic representation of a normal sinus rhythm ECG wave. Diagram showing how the polarity of the QRS complex in leads I, II, and III can be used to estimate the heart's electrical axis in the frontal plane. The QRS complex is the combination of three of the graphical deflections seen on a typical electrocardiogram (ECG or EKG). It is usually ...