Four stage corss-section of the bronchus demonsrating the tissue changes occuring with asthma and chronic bronchitis. Four stages: normal bronchitis, hypersecretion of the mucous gland, swelling with lymphoid aggregations, and smooth-muscle spasm. The model includes cartlage, mucous glands and plug, spiraling smooth muscles, and the fibroelastic connective tissue and epithelial layers of the bronchus. All stages rotate on a hinge pin.
Diseased Lung Model
The Diseased Lung Model is a full-size two-sided model of two separate lungs with four cutaway sections illustrating normal anatomy and the effects of chronic obstructive pulmonary disease (COPD), cancer, and asthma. Size: 4-1/4 inches x 5-1/2 inches x 8-1/4 inches.
Four-Piece Artery Model
This model includes a four-stage cross-section of an artery demonstrating atherosclerosis in which the narrowing of the artery is due to a build up of fatty tissue (cholesterol) and plaque. The four stages illustrate normal artery, fatty streak, fibrous plaque, and blockage. The stages cause a decrease in blood flow, which can lead to a blood clot or thrombus. All stages rotate on hinge pin. Size: (each of four pieces) 1-3/8 inches diameter x 7/8 inches x 3-1/2 inches.
Human Heart Model
A detailed heart model that illustrates the musculature of the heart and large blood vessels. Sectioned so that both ventricles and atria open to expose the valves. Twice enlarged. Dissects into 4 parts. Removable from stand. Size: 10" x 10"
Lungs With Heart Model
This hand-painted model of the lungs with heart and larynx is about 3-times life-size. The 3-dimensional lungs and heart are shown in cross-section, and the 2-piece larynx divides in half and can be removed for inspection. 33 numbered parts with identifying key. Mounted on a baseboard. Made of fiberglass. Size: 20" x 18"
Occluded Artery Model
Larger than life transparent model of an artery shows a constricted passage clogged with plaque. Turning the model shows the difficulty that red blood cells have flowing through an artery with atherosclerosis. Size: 2 3/4 x 6 7/8
Respiratory Organs Model
This life-size model is finely colored to show all major details of the respiratory organs: diaphragm with muscles, tendons, and major openings for vessels and esophagus, bisected heart shows the origins of 5 abdominal arteries, as well as all internal structures, 3 thoracic and 3 lumbar vertebrae, sectioned left lung shows bronchioles, pulmonary arteries and veins, and the larynx, sectioned to show its structure. On a base with key. Size: 16 inches x 9 inches x 7-1/2 inches.
Two-Part Heart Model
About 3/4 life-size, this affordable heart is made of durable SOMSO-Plast. Sectioned into 2 parts, the anterior part of the ventricles and of the auricles can be removed to show the semilunar and tricuspid valves. Mounted on base. Trim Size: 8 1/2 x 5