Mosquitoes (Culicidae) are disease vectors, which are responsible for an estimated one million deaths per year. Female mosquitoes, which need blood for survival and reproduction, collect blood with a disease present from a host, and will transmit that disease from one host to another as it feeds on additional food sources. This continuous feeding…

Students of physiology are taught that the body's homeostatic mechanisms are in place to maintain the body's internal environment. This is most often associated with maintaining health. Congestive Heart Failure represents a disease in which the body's homeostatic mechanisms worsen the progression of the disease. Using the analogy of Santa Claus…

This column includes activities inspired by children's literature. This month's trade books teach students about external and internal structures that allow animals and humans to survive. This months trade books are: (1) "Creature Features" (Steve Jenkins and Robin Page); and (2) "Body Actions" (Shelley Rotner and David A.…

The eastern oyster, "Crassostrea virginica," is an ecologically and economically important species in Chesapeake Bay. Oysters are ecologically unique in the Chesapeake Bay because they build a structure known as a bar or reef by attaching to one another over a 45 long period of time. They have been coined the "Ecological Engineers…

Evolution can be a difficult concept for students, even though it is an organizing principle in biology. It can also be a challenge for teachers to cover evolution properly (or at all) in the classroom, whether due to personal attitudes or lack of knowledge or confidence in the material (Rutledge and Mitchell 2002). Even in some states where…

Studies show that children may not be able to conceptualize some of the topics associated with anatomy, including internal organs and involuntary muscles, because the concepts are too abstract and are not easily visualized. Thus, this article presents activities that incorporate a variety of models and hands-on activities designed to provide…

Students struggle with the amount of information they are expected to learn in undergraduate human anatomy and physiology labs. Often, the models used in labs may look different from the figures or photos in the lab manuals purchased from publishing companies and therefore studying at home with lab manual diagrams can be an unnecessarily…

This article describes a lesson in which high school biology, ecology, environmental science, anatomy, and physiology students can devise hypotheses and test them with scientific data, identify unanswered questions, and design an additional study to answer those questions. This module connects students with exciting research and current science…

There is a particular need for inquiry-based lessons in the early elementary grades, when students are starting to develop their analytical skills. In this article, the authors present a 2-tiered inquiry-based lesson plan for 1st and 2nd grades that has been successfully used by graduate teaching fellows involved in the National Science Foundation…

This article describes how to establish a primary tissue culture, where cells are taken directly from an organ of a living animal. Cardiac cells are taken from chick embryos and transferred to culture dishes. These cells are not transformed and therefore have a limited life span. However, the unique characteristics of cardiac cells are maintained…

Many topics in the secondary science classroom can be difficult to introduce to students in a manner that fully engages them, especially when presented using traditional teaching methods. However, with a little innovation and an emphasis on inquiry, even dry subjects can be presented in an appealing way. The authors developed an inquiry-based…

Very often, some type of writing assignment is required in college entry-level Human Anatomy and Physiology courses. This assignment can be anything from an essay to a research paper on the literature, focusing on a faculty-approved topic of interest to the student. As educators who teach Human Anatomy and Physiology at an urban community college,…

A pinhole camera is a camera without a lens. A tiny hole replaces the lens, and light is allowed to come in for short amount of time by means of a hand-operated shutter. The pinhole allows only a very narrow beam of light to enter, which reduces confusion due to scattered light on the film. This results in an image that is focused, reversed, and…

The focus of this textbook is anatomy, physiology, and hygiene for schools, colleges, and general readers. It is believed to be a fair exponent of physiological and hygienic knowledge at the time of publication. Throughout its pages the lessons of moderation are taught in connection with the use of each part of the body. The subjects of food, and…

Discusses Henry's Law which describes the relationship between the pressure of gas and the concentration of that gas in a solution. Presents an application of Henry's Law to the cracking of knuckles. (CCM)