Unit 5 Muscular System Test Review-
Graded A
Identify the general functions of the muscular system - ANS-Motion by moving the
skeletal levers of the body
Posture - stabilizing body positions
Regulation of organ volume
Thermogenesis - heat production
Protection of internal organs
Define the 4 characteristics of muscular tissue - ANS-irritability(excitability): the ability of
muscle tissue to recieve and respond to stimuli
extensibility: the ability of muscle tissure to be stretched with little force
contractility: the ability of muscle tissure to shorten and preduce force
elasticity: the ability of muscle tissue to return to its normal length from extended
postition
skeletal tissue - ANS-location: attacthed to bones
appearance: striated
control: voluntary
functions: movement
smooth tissue - ANS-location: hollow into surfaces
appearance: non-straited
control: involuntary
functions: propulsion
cardiac - ANS-location: heart
appearance: striated
control: involuntary
functions: pump heart
Identify the proteins which compose the thick and thin myofilaments - ANS-actin: thin,
light colored myofilaments
myosin: thick, dark colored myofilaments
describe the sliding-gilament theory of muscle contraction - ANS-myosin attatch at
active site, pulling actin towards the center causing actin myofilaments to slide past one
another
Graded A
Identify the general functions of the muscular system - ANS-Motion by moving the
skeletal levers of the body
Posture - stabilizing body positions
Regulation of organ volume
Thermogenesis - heat production
Protection of internal organs
Define the 4 characteristics of muscular tissue - ANS-irritability(excitability): the ability of
muscle tissue to recieve and respond to stimuli
extensibility: the ability of muscle tissure to be stretched with little force
contractility: the ability of muscle tissure to shorten and preduce force
elasticity: the ability of muscle tissue to return to its normal length from extended
postition
skeletal tissue - ANS-location: attacthed to bones
appearance: striated
control: voluntary
functions: movement
smooth tissue - ANS-location: hollow into surfaces
appearance: non-straited
control: involuntary
functions: propulsion
cardiac - ANS-location: heart
appearance: striated
control: involuntary
functions: pump heart
Identify the proteins which compose the thick and thin myofilaments - ANS-actin: thin,
light colored myofilaments
myosin: thick, dark colored myofilaments
describe the sliding-gilament theory of muscle contraction - ANS-myosin attatch at
active site, pulling actin towards the center causing actin myofilaments to slide past one
another
