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Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, [2] and released to the public in January 2007. [3] Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [4]
The first portion of an ICSS experiment involves training subjects to respond for stimulation using a fixed-ratio 1 (FR-1) reinforcement schedule (1 response = 1 reward). In experiments involving rats, subjects are trained to press a lever for stimulation, and the rate of lever-pressing is typically the dependent variable . [ 1 ]
Goss was the esteemed editor of the 25th edition of the seminal classic Gray’s Anatomy. Internationally lauded as the authority on all things anatomical, Gray’s Anatomy had been considered essential for any would-be physician to own since it was first published in London in 1858. It was written by Dr. Henry Gray and illustrated by Henry ...
Arousal is the physiological and psychological state of being awoken or of sense organs stimulated to a point of perception. It involves activation of the ascending reticular activating system (ARAS) in the brain, which mediates wakefulness, the autonomic nervous system, and the endocrine system, leading to increased heart rate and blood pressure and a condition of sensory alertness, desire ...
Surface projections of the major organs of the trunk, using the vertebral column and rib cage as main reference points of surface anatomy. Surface anatomy (also called superficial anatomy and visual anatomy) is the study of the external features of the body of an animal. [1] In birds, this is termed topography.
Histologic specimen being placed on the stage of an optical microscope Human lung tissue stained with hematoxylin and eosin as seen under a microscope. Histology, [help 1] also known as microscopic anatomy or microanatomy, [1] is the branch of biology that studies the microscopic anatomy of biological tissues.
(2) Cuspids (or canine tooth), the four cuspids are next to each incisor. Cuspids have a pointed edge to tear food. (3) Premolars (or bicuspids), the four pairs of molars are located next to the cuspids. They crush and tear food. (4) Molars, there are twelve molars, in sets of three, at the back of the mouth. They have wide surfaces that help ...
The series was re-released in 2003 on DVD as Acland's DVD Atlas of Human Anatomy. The series uses unembalmed human specimens to illustrate anatomical structures. [ 3 ] Intended for use by medical, dental and medical science students, the video teaching aid uses simple language and high quality images.