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Results for: 'Anatomy and Chemical Makeup of a Single Hair (Animation)'

Anatomy and Chemical Makeup of a Single Hair (Animation)

By: HWC, Views: 4862

The hair's outer cuticle surrounds hair cells filled with tough keratin macrofibrils. Each macrofibril consists of smaller microfibrils. A microfibril is made up of three keratin polypeptide chains. The chains are linked together by disulfide bonds. A hair consists of keratin chains held...

Mechanics of Sound Animation

By: Administrator, Views: 9864

Process of Hearing Sound waves are directed to the eardrum, causing it to vibrate. These vibrations move the three small bones of the middle ear (malleus, incus, and stapes). Movement of stapes at oval window sets up pressure waves in the perilymph and endolymph. Process of Hearing The wav...

Integumentary Anatomy

By: Administrator, Views: 9797

The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or damages from outside. The integumentary system includes hair, scales, feathers, hooves, and nails. It has a variety of additional functions; it may serv...

Introduction to Body Systems Animation

By: Administrator, Views: 675

Systems: A group of different organs functioning together for a common purpose.

Chemical Messengers Animation

By: Administrator, Views: 10103

Three types of chemical messengers.

Fetal development - Weeks 9 to 38

By: HWC, Views: 6709

Weeks 9-12 • Fetal development during the third month includes: • A large head, about 1/2 the length of the fetus. • Visible eyes and ears. • A detectable heartbeat. • Kidneys that form urine. • Gender identification. • Weak, undetectable body movements. • By the e...

Double Stranded DNA Molecule Animation

By: HWC, Views: 4531

Double Stranded DNA Molecule Animation

Endocrine System Animation

By: Administrator, Views: 893

Vital function of endocrine system: Production and regulation of chemical substances called hormones. Hormones Chemical transmitters released in small amounts and transported via bloodstream to a target organ or other cells. Transfer information and instructions from one set of cells to anot...

Types of synapses - electrical & chemical

By: HWC, Views: 6639

• Neurons communicate with one another or effector cells via synapses that allow information to be filtered and integrated. • The two types of synapses are: • electrical • chemical. • Electrical synapses, also known as gap junctions, contain many ion channels (connexons) conne...

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