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heart-valve

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Journal Articles
The American Biology Teacher. 2014; 767466–469 doi: https://doi.org/10.1525/abt.2014.76.7.9
Published: 01 September 2014
...Margaret L. Hudson Heart valves play a vital role in efficient circulation of the blood, and the details of their physical structure are related crucially to their function. However, it can be challenging for the learner to make the mental connection between anatomical structures of valves and the...
Journal Articles
The American Biology Teacher. 1946; 87173 doi: https://doi.org/10.2307/4437730
Published: 01 April 1946
...John W. Baechle Heart Valves REV. JOHN W. BAECHLE St. Joseph's College, Collegeville, Indialia It is sometimes difficult to demolnstrate to the studenit just how the valves in the heart actually work. For this reasoll the following easily made gadget was de- vised, alnd is beinig passed oln in...
Journal Articles
The American Biology Teacher. 2015; 778632–636 doi: https://doi.org/10.1525/abt.2015.77.8.11
Published: 01 October 2015
... . American Biology Teacher , 74 , 644 – 646 . Hudson, M.L. ( 2013 ). Making working models of heart valves . [Online.] Available at https://www.youtube.com/watch?v=H4q1u2aCbjo [Part 1] and https://www.youtube.com/watch?v=TUUrcK-8pnc [Part 2] . Hudson, M.L. ( 2014 ). Make your own working...
Journal Articles
The American Biology Teacher. 2014; 769643–647 doi: https://doi.org/10.1525/abt.2014.76.9.14
Published: 01 November 2014
... .......................7:460-TT Make Your Own Working Models of Heart Valves! .......................7:466-TT Learning about Vertebrate Limb Development .......................7:471-TT The Cell Cycle: An Activity Using Paper Plates to Represent Time Spent in Phases of the Cell Cycle .......................7...
Journal Articles
The American Biology Teacher. 2012; 743185–189 doi: https://doi.org/10.1525/abt.2012.74.3.11
Published: 01 March 2012
... elements sometimes referred to as “hearts.” Small openings known as ostia allow blood to return to the dorsal vessel after circulation through the body sinuses. In the abdomen, lateral vessels can be observed branching off the dorsal vessel to facilitate blood distribution to the body. The authors have...
Journal Articles
The American Biology Teacher. 2010; 727452–455 doi: https://doi.org/10.1525/abt.2010.72.7.12
Published: 01 September 2010
..., the move is now back to natural products, though in a much more sophisticated way than wooden toes. Synthetic materials came to be used because they were less likely to be destroyed by body fluids and to elicit immune responses. That's why there are so many people with plastic heart valves and...
Journal Articles
The American Biology Teacher. 2009; 719554–557 doi: https://doi.org/10.2307/20565380
Published: 01 November 2009
... layer around your fist is the visceral pericardium, the outer layer is the parietal. The heart is like a four-room house: The vinyl siding is epicar dium, the walls are myocardium, and the glossy interior paint is endocardium. The valves of the heart open and close like a screen door in the wind. Valves...
Journal Articles
The American Biology Teacher. 2007; 697416–421 doi: https://doi.org/10.2307/4452194
Published: 01 September 2007
... short articles on the benefits of animal research to human health and/or life expectancy, including information on vaccines for polio, diphtheria, whooping cough, and meningitis; medicines for asthma, diabetes, penicillin, and leukemia; and surgical methods for anesthetics, heart lung machine, replace...
Journal Articles
The American Biology Teacher. 2007; 693134–181 doi: https://doi.org/10.2307/4452116
Published: 01 March 2007
.... , @ t l _ Watch interest and understanding increase as students record and examine O _dphysiological data from their own bodies to study muscle, heart, brain, eyes, respiration, reaction time, biofeedback, aerobic exercise physiology, and more! _ WS / * j * own data in real time [n . _XSuet e hi Sample...
Journal Articles
The American Biology Teacher. 2005; 67156–59 doi: https://doi.org/10.2307/4451780
Published: 01 January 2005
... blood, in an opposing rhythm. Harvey shares his observations of living ani- mals (vivisection), especially of frogs and other "lower" animals. With their slower hearts, the stages of motion were more readily seen. From observing blood flow in fishes and fetuses, and noting how heart valves work, Harvey...
Journal Articles
The American Biology Teacher. 2003; 658600–609 doi: https://doi.org/10.2307/4451570
Published: 01 October 2003
.../students/heart/ dissection.htm. The University of Western Ontario Heart Valve Lab. (1997). Dissecting a Porcine (Pig) Heart. Retrieved May 8, 2002, from http://www.heartlab.rri.on.ca/dissect/dissection. html. Theil, L. (2000). Lamb heart awes 4th graders - Howell students learn what makes animal...
Journal Articles
The American Biology Teacher. 2005; 674206–212 doi: https://doi.org/10.2307/4451824
Published: 01 April 2005
... recorded performance of each student in each section. While some of the questions were more factual (e.g., "The valve between the atrium and ventri- cle on the right side of the heart is the [tricuspid, pul- monary semilunar, mitral-pick one Others attempt- ed to assess a deeper level of knowledge (e.g...
Journal Articles
The American Biology Teacher. 2005; 67120–26 doi: https://doi.org/10.2307/4451776
Published: 01 January 2005
... mental model or its application. Consider the following situations. Situation 1 When asked, almost all students will correctly predict that during vigorous exercise, heart rate increases, and the strength of contraction of the heart increases. Both of these responses are immediately perceptible to the...
Journal Articles
The American Biology Teacher. 2002; 648638–639 doi: https://doi.org/10.2307/4451393
Published: 01 October 2002
... Alicia Mundy is a well-researched review of the court battles waged on behalf of persons suffering from a fatal condition, primary pulmonary hypertension and/or heart valve damage as a result of taking a pre- scription diet drug, Fen-Phen, against the company that manufac- tured and marketed it, Wyeth...
Journal Articles
The American Biology Teacher. 2002; 648636–638 doi: https://doi.org/10.2307/4451392
Published: 01 October 2002
...-25324-9). 386 pages. Hardback $24.95. Dispensing with the Truth by Alicia Mundy is a well-researched review of the court battles waged on behalf of persons suffering from a fatal condition, primary pulmonary hypertension and/or heart valve damage as a result of taking a pre- scription diet drug, Fen...
Journal Articles
The American Biology Teacher. 2003; 657503–510 doi: https://doi.org/10.2307/4451549
Published: 01 September 2003
... completed questionnaires and interviews. FIGURE 4. This plastinated human heart show- ing the internal valve structure can be used with students in any of the elementary grades and can be easily stored for use by another class. /n FIGURE 5. The alveolar damage done by emphy- sema, s seen in this plastinated...
Journal Articles
The American Biology Teacher. 2002; 642130–134 doi: https://doi.org/10.2307/4451256
Published: 01 February 2002
... with both hands, peer through the holes cut into each chamber, wiggle their fingers in the holes (in spite of instructor admonitions not to touch the valves), and then try to figure out how the heart actually works. The faculty teaching the lab USING PLASTINATED SP CIMENS 131 are deliberately reticent...
Journal Articles
The American Biology Teacher. 2002; 64164–69 doi: https://doi.org/10.2307/4451238
Published: 01 January 2002
... consider in more detail how animal-built structures can be seen as organs of physiology, "no different from, and just as much a part of the organism as, the more conventionally defined organs such as kidneys, hearts, lungs, or livers" (p. 2). To make his point, he uses a number of examples, most involving...
Journal Articles
The American Biology Teacher. 2001; 632110–115 doi: https://doi.org/10.2307/4451052
Published: 01 February 2001
... utilize resources like the cardiovascu- lar BioCoaches? in the classroom. Cardiovascular I: The Beating Heart Somewhere along the way, students learn the four chambers and valves of the mammalian heart and pathway of blood through it. They can recite fluently with vigor and pride the fol- lowing...
Journal Articles
The American Biology Teacher. 2000; 627482–495 doi: https://doi.org/10.2307/4450956
Published: 01 September 2000
... importance. The hypothetico- deductive reasoning behind his experiment can be reconstructed as follows: If blood flows in veins only toward the heart because of the presence of one-way valves (Postu- late 5), and a tourniquet is tied around the upper arm (as shown in Figure 1), a finger is pressed on the...