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Muscles, part 2 - Organismal Level: Crash Course A&P

By Owner-Powered by BoclipsFrom Boclips Com OldAugust 20, 2025

Hank calls in a friend to do his push ups for him today to explain how skeletal muscles work together to create and reverse movements. Hank and Claire also demonstrate the role size plays in motor units, the three phase cycle of muscle twitches, and how the strength and frequency of an impulse affects the strength and duration of a contraction.

#Origin

#Agonist

#Myofibril

#Movement

#Involuntary

#Coordination

#Force

#Cardiac

#Muscles

#Insertion

#Flexion

#Voluntary

#Contraction

#Skeletal

#Sarcomere

#Tendons

#Extension

#Smooth

#Antagonist

#Ligaments