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HUMAN EYE IN ORBIT (2878)
This removable. 4x-enlarged. horizontally sectioned eye features a twopart choroid with iris and retina. the clear plastic lens and vitreous humor. The tear duct and the intraocular muscles are also shown. The seven-piece model is mounted on a base with numbered Key Card.
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HUMAN EYE DEMONSTRATION MODEL, 5 PARTS (2879)
Enlarged approx. 6 times, 5 parts, on one side the model shows the eye socket with a sagittal cutaway. In addition the black ground to the eye and the muscles of the eye are shown separately. On the other side of modeJ. the eye ball with its muscles are shown.
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HUMAN EYE DEMONSTRATION MODEL (2880)
One side of this 6x model shows the eye socket with a sagittal cut away. while the other side of the model shows the outside of the eye and all the muscle attachments. as well as illustrations depicting how the eye focuses. The cut away is encased in a clear protective covering and two separate insets show the fine structure of the retina as seen with an electron microscope. This model comes attached to a stand with a base with numbered Key Card.
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FUNCTIONAL HUMAN EYE (2881)
A unique apparatus allows you to the conditions of visual the human eye. The clear silicone elastic lens chamber of the model is filled with water. When later is added or subtracted with the included syringe. the curvature of the lens is changed. which alters the focus of images projected on the retina. The shape of the eyeball is adjustable as well. Once the deficiencies have been observed. the included corrective lenses can be added to show how vision defects can be modified. The five-piece model is mounted on a base with the projection object on a separate stand. The set comes with two lenses. lens holder, projection object, model, and instruction manual with numbered Key Card.
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FUNCTIONAL HUMAN EYE (2882)
This Functional Human Eye Model of the Human Eye demonstrates the way the lens thickens or flattens to focus an image on the retina. The actual lens is a chamber constructed of optically clear silicone elastomer connected by tubing to a water-filled syringe. Water forced into the lens increases its thickness and curvature; withdrawal flattens the profile of the lens, changing its focus. The" Shape" of the eye can also be altered to simulate myopia [nearsightedness] and hypermetropia [farsightedness]. Used in conjunction with a bright light source [such as an ordinary slide projector], images can be focused on the model's retina. You can dramatically demonstrate visual accommodation; near-point of vision; visual blind spot; presbyopia [age-related loss of accommodation from lack of lens elasticity]; and the use of corrective lenses to treat myopia and hypemetropia (lenses and lens holder included). Complete with illustrated instructions and projection object on stand with numbered Key Card.
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MICRO ANATOMY OF EYE (2883)
The model illustrates the microscopic structure of the retina with choroid and sclera. The left block-like, layered side of the model side shows the complete structure of the retina including the supplying vascular layer and parts of the sclera from a light microscopic view. The right part of the model is a sectional enlargement. It shows the microscopic structure of the photo receptors and the cells of the pigmented layer.
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HUMAN EAR (2884)
Four times actual size model supports detailed study of the human ear.
? Petrous portion of the temporal bone section of the auditory canal is removable.
? Labyrinth can be extracted and opened.
? Tympanic membrane with malleus and incus can be removed and separated into six parts.
? Mounted on a sturdy base
? lncludes comprehensive key card.
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HUMAN EAR, GIANT, ENLARGED 5 TIMES, 2 PARTS (2885)
This version is a whopping 5 times life-size for easy viewing from anywhere in the classroom! Representation of outer, middle and inner ear. Removable auditory osicles and labyrinth with cochlea and vestibulocochlear nerve. Mounted on base with numbered Key Card.
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HUMAN EAR (2886)
Showing approximately 4 times enlarged. The petros portion of the temporal bone section of the auditory canal is removed. The tympanic membrane with malleus and incus are also removable, dissectible into 3 parts, mounted on base. Representation of outer, middle and inner ear, Removable eardrum with hammer, anvil and stirrup, additionally with two removable bone section to close the middle and inner ear with numbered Key Card.
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HUMAN EAR (2887)
Approximately 5 to 6 times enlarged, on board with pinna, dissectible into 4 parts. The mechanism of hearing can be easily explained with the numbered Key Card.
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HUMAN NOSE LS (2888)
This 2x model shows a cross section of the cranium so students can see how various structures are placed inside the head. It features an elastic epiglottis to show the relationship of the nasopharynx structures. The model is mounted on a base with numbered Key Card.
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HUMAN TEETH WITH TONGUE (2889)
With detachable teeth model, dissectible into 2 parts, mounted on base. With numbered Key Card.
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gursharankkainth: lali ki yaad main ye diwana hua (2890)
With detachable teeth model, dissectible into 2 parts, mounted on base but in 3 parts. Natural size on stand. With numbered Key Card.
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HUMAN TEETH WITH TONGUE (2891)
This model shows the lower jaw up to the second molar, the tongue with mouth floor musculature in median section and the right sublingual and sub-mandibular gland. On removable base with numbered Key Card.
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HUMAN UPPER AND LOWER JAW (2892)
Showing various positions of teeth in upper and lower jaws. Internal wall is removed to show the incisors, permanent canine and permanent premolar, milk canine, milk premolars. permanent incisors in full view and also the arteries. veins and nerves serving them. Mounted on base with numbered Key Card.
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