WorksheetsMuscular System
Total questions: 50
Worksheet time: 35mins
Which is not a function of the muscular system?
Movements of the body
Stabilizing body positions
Gives the body its shape
Generating heat
A process where our body produces heat as muscular tissue contracts
(a)
An involuntary action where the muscle generates heat in response to cold temperature
(a)
Cylindrical and branched; Striated, involuntary
Cardiac Muscle
Smooth Muscle
Skeletal Muscle
Spindle-shaped; Non-striated, involuntary
Cardiac Muscle
Smooth Muscle
Skeletal Muscle
Cylindrical and unbranched; striated, voluntary
Cardiac Muscle
Smooth Muscle
Skeletal Muscle
Ability to generate tension to do work
Contractility
Excitability
Extensibility
Elasticity
The property if responding to stimuli
Contractility
Excitability
Extensibility
Elasticity
Ability to extend
Contractility
Excitability
Extensibility
Elasticity
Ability to return to original shape after contraction
Contractility
Excitability
Extensibility
Elasticity
The gravity pulling on the limb and pressure of fluid in a hollow organ
(a)
Ability to respond to certain stimuli by producing electric signals
(a)
Seperates individual muscle fibers from one another
Endomysium
Perimysium
Epimysium
Allows pre-movement of muscles and carries the nerves, blood vessels and lymphatic vessels
Endomysium
Perimysium
Epimysium
Surrounds groups of 10-100 or more muscle fibers
Endomysium
Perimysium
Epimysium
Structural unit of skeletal tissue
(a)
Group of endomysium with muscle fiber
(a)
Skeletal muscle cell
(a)
Lies between the muscles
Deep Fascia
Superficial Fascia
Resides just under the skin
Deep Fascia
Superficial Fascia
Outer membrane of long cylindrical muscle fiber
(a)
Cytoplasm of the muscle cell
(a)
Oxygen-containing compound which offers oxygen through the muscles
(a)
Allow electrical impulses to travel deep into the cell
(a)
Store calcium ions when the muscle fiber is in a relaxed state
(a)
A long protein bundle that fills sarcoplasm and gives the muscle its ability to contract
(a)
Contractile Proteins
Generates force during contraction which includes myosin and actin
Help switch the contraction process on and off
Keep thethick and thin filaments in their proper alignment and gives myofibrils elasticity and extensibility
Regulatory Proteins
Generates force during contraction which includes myosin and actin
Help switch the contraction process on and off
Keep thethick and thin filaments in their proper alignment and gives myofibrils elasticity and extensibility
Structural Proteins
Generates force during contraction which includes myosin and actin
Help switch the contraction process on and off
Keep thethick and thin filaments in their proper alignment and gives myofibrils elasticity and extensibility
Basic functional unit of myofibril
(a)
Anchor point for the thin filaments
Z-disc
A band
I band
H zone
M line
Darker middle part of sarcomere that extends the entire length of thick filaments
Z-disc
A band
I band
H zone
M line
Lighter and less dense of sarcomere that contain remainder of the filaments but no filaments
Z-disc
A band
I band
H zone
M line
A smaller band that contains only thick filaments
Z-disc
A band
I band
H zone
M line
The middle part of the sarcomere
Z-disc
A band
I band
H zone
M line
A motor protein, also called Myosin
Thick Myofilaments
Thin Myofilaments
It looks like a string of beads, also called Actin
Thick Myofilaments
Thin Myofilaments
An extension of our epimysium
(a)
A tendon and epimysium but wide and flat
(a)
Attaches to the stationary bone
Origin
Insertion
Triceps brachii
Belly
Origin at the periosteum of out humerus
Origin
Insertion
Triceps brachii
Belly
Muscle with the major responsibility for a certain movement
Agonist
Synergist
Antagonist
Assist the prime mover
Agonist
Synergist
Antagonist
Muscle that opposes or reverses the movements of a prime mover
Agonist
Synergist
Antagonist
Tension increases while the length remains the same
Isotonic Contractions
Isometric Contractions
Concentric Isotonic
Eccentric Isotonic
As muscles shortens, it generate enough force to move an object
Isotonic Contractions
Isometric Contractions
Concentric Isotonic
Eccentric Isotonic
Impairment or loss of motor function as a result of brain damage
(a)
Facial paralysis
(a)
Sudden involuntary contraction of a single muscle
(a)
A spasmodic twitching made involuntarily by muscles
(a)
