Search results for: 'Overview of interactions in antibody-mediated and cell-mediated immunity Animation'

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By: HWC, Views: 4691

Amniocentesis and chorionic villus sampling (CVS) are prenatal diagnostic tools. In amniocentesis, which can be performed as early as 14 weeks into the gestation period. A syringe needle is inserted through the abdominal and uterine walls to withdraw some amniotic fluid. The fluid contains...

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Requirements for nervous signals

By: HWC, Views: 7720

• The function of neurons is to allow communication between cells, thereby maintaining homeostasis. • Electrical signals, called membrane potentials, travel along the membranes of the neurons. • Voltage variability and distance traveled determine the type of nervous signal. 1. Graded...

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Bone Healing Animation

By: Administrator, Views: 10765

A visual on how bones eventually heal themselves. Traction is the application of a pulling force to maintain bone alignment during fracture healing. Different fractures require different types of traction. (A) Balanced suspension traction is commonly used for fractures of the femur. (B) Skelet...

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Virtual Tour of the Eye Animation

By: Administrator, Views: 10397

Eye Composed of special anatomical structures that work together to facilitate sight: Cornea Pupil Lens Vitreous body Light stimulates sensory receptors (rods and cones) in the retina or innermost layer of the eye. Vision is made possible through the coordinated actions of nerves that co...

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Lung Sounds Animation (5 of 5)

By: Administrator, Views: 318

Lung Sounds

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Olfaction. or the sense of smell

By: HWC, Views: 5214

Do you ever wonder how you can distinguish thousands of different odors? Olfaction. or the sense of smell, is used by all mammals to navigate, find food, and even find mates. We have millions of olfactory receptors for smelling in our nose. These receptor neurons bind water-soluble or volatil...

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Type of Transport - Active and Passive Processes

By: HWC, Views: 8011

Active transport moves materials from lower to a higher concentration, while passive transport moves materials from higher to lower concentration. Active transport requires energy to proceed, while passive transport does not require the input of extra energy to occur. Transport processes that ...

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Lymphatic System Animation

By: Administrator, Views: 492

Blood and lymph are two of the body's main fluids and are circulated through two separate but interconnected vessel systems. Blood is circulated by the action of the heart, through the circulatory system consisting largely of arteries, veins, and capillaries. Lymph does not actually circulate. ...

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Carpal Tunnel Syndrome

By: Administrator, Views: 10969

Carpal tunnel syndrome is numbness, tingling, weakness, and other problems in your hand because of pressure on the median nerve in your wrist. The median nerve and several tendons run from your forearm to your hand through a small space in your wrist called the carpal tunnel.

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