BioG 1105-1106 at Cornell University
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Unit 10: Demos

Objective 1:

All sensory receptors are transducers
What determines how a stimulus is interpreted? (1c)

Objective 4:

Hair cells

Objective 5:

Hearing

Objective 6:

Role of otoliths (6a)

Objective7:

Eye diagrams
Advantages and disadvantages of various types of eyes (7c)
Fish Eyes (optional)
Scientific American "Ask the Experts": Why do dogs get blue, not red, eyes in flash photos? (optional)
Dr. Strauss' Biology 129 at Penn State University: Sheep Eye Dissection
The Vitreous Humor (optional)
The Crystalline Lens (optional)
Click here to "see" your Blind Spot (optional)

Objective 8:

Rods versus cones (8a)

Objective 13:

Muscle Contraction video tutorial (From Campbell website)
Role of ATP in muscle contraction (13b)

Objective 15:

Fatigue (optional)
Red versus white muscle (15d)

Objective 18:

Bone structure (optional)

Optional Slides - Check out some anatomy!:

Muscle Slides
Cardiac Muscle
Smooth Muscle
Compact Bone Slides

Optional Supplementary Material:

Retinal cell transplant successful!
How Vision Works
The Nocturnal Eye
The Eye and Retina
Major bones of the vertebrate(from the University of the Western Cape, South Africa - Internet Bio-Ed Project)

OTOLITHS: HOW OUR BODIES MAINTAIN BALANCE

Otoliths in the inner ear. The crystals of calcium carbonate, called otoliths, shown in this scanning electron micrograph are surrounded by a gelatinous film in which hairs are embedded. When the head tilts, the altered pull of the otoliths on the hairs sends signals on head position to the brain.

How otoliths function. When the head is in an upright position, the weight of the otoliths presses directly down on the sensitive hair cells, the tips of which are embedded in the membrane. When the head is tilted (bottom), the altered pull of the otoliths on the hairs generates signals to the brain.

© BIOG 1105-1106