Muscle

Muscle is a contractile form of tissue. It is one of the four major tissue types, the other three being epithelium, connective tissue and nervous tissue. Muscle contraction is used to move parts of the body, as well as to move substances within the body.

External links

• The Straight Dope (Masseter "strongest;" 975 pounds for 2 seconds; gluteus maximus and quadriceps strongest if leverage not included)
• Physics factbook (Heart output 1.3 to 5 watts, lifetime output 2 to 3 ×10⁹ joules)
• Alaska optometric association (External eye muscles "100 times as strong as they need to be")
• course notes for a Virginia Commonwealth dance course (Quadriceps "strongest")
• a body-building equipment website (Quadriceps "strongest")
• University of Dundee article on performing neurological examinations (Quadriceps "strongest")
• course notes from a Hartnell College course (Uterus "strongest pound for pound")
• the Pregnancy Today website (Uterus "strongest")
• Muscle efficiency in rowing
• "Gatorade Sports Science Institute" on muscle efficiency in cyclists (PDF)