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Muscular System
muscle types and components
11
Biology
Not Applicable
03/02/2005

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Term
Smooth Muscle
Definition
muscle that lacks striation , involuntary
Term
Cardiac Muscle
Definition
striated muscle that generate thier own action potention with out input from motor nuerons
Term
Skeletal Muscle
Definition
voluntary straited muscle that requires input from motor nueron to create action potential
Term
Slow Muscle Fiber
Definition
muscle fiber that supplies steady energy source which contain myoglobin, many mitochondria, and longer lasting reserves of calcium
Example location: back (posture maintanance)
Term
Fast Muscle Fiber
Definition
muscle fibers that provide fast,powerful contratcions. Example location: wings of birds
Term
Sarcoplasmic Reticulum
Definition
actively transports calcium calcium from cytoplasm into interior reticulum
Term
Myofibrils
Definition
longitudinal bands containing myofilaments
Term
Thin Myofilaments
Definition
consists of 2 strands of active and one strand of reuglatory protien
Term
Thick Myofilimanets
Definition
consist of staggared arrays of myosin molecules
Term
Sacromere
Definition
the fundamental unti of a muscle that is composed mainly of actin and myosin and extending from Z line to Z line in a myofibril
Term
Muscle
Definition
organized arrays of muscle fibers.
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