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Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
What are the three types of muscles? 
skeletal, cardiac, and smooth 
Which muscles are involved in voluntary movement and contain fibers with multinucleate cells? 
skeletal 
What are the filaments that are divided into 
sarcomeres? 
myofibrils 
What are the individual contractile units separated by a border? 
sarcomeres 
(Note: border is called Z line) 
What liquid stores Ca2+ and surrounds myofibrils in muscle tissue? 
sarcoplasmic reticul...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
What are the three types of muscles? 
skeletal, cardiac, and smooth 
Which muscles are involved in voluntary movement and contain fibers with multinucleate cells? 
skeletal 
What are the filaments that are divided into 
sarcomeres? 
myofibrils 
What are the individual contractile units separated by a border? 
sarcomeres 
(Note: border is called Z line) 
What liquid stores Ca2+ and surrounds myofibrils in muscle tissue? 
sarcoplasmic reticul...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
What are the three muscle types in the body? - skeletal, cardiac, smooth 
What is the endomysium? - a thin layer of connective tissue that surrounds each muscle fiber 
What is the perimysium? - connective tissue that surrounds groups of 10-100 individual muscle 
fibers separating them into bundles called fascicles. 
What is the epimysium? - Connective tissue layer(outside muscle); an overcoat of dense irregular 
connective tissue that surrounds t...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
smooth muscle - muscle found in the digestive tract and the walls of blood vessels; helps move 
food through the digestive system and blood through the body; NO striations 
cardiac muscle - striated muscle found only in the heart; pumps blood around the body 
skeletal muscle - striated muscle that attaches to and pulls on bones to produce movement; often 
work in pairs called flexors and extensors 
flexor - a muscle that bends a part of your body...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
Functions of skeletal muscle - -movement -stability -control of body opening/passages -heat production 
Excitability - -responsiveness to stimulus -exhibits electrical and mechanical responses 
Conductivity - electrical excitation is conducted throughout the entire plasma membrane 
Contractility - unique characteristic of shortening when stimulated 
Extensibility - can stretch without breaking 
Elasticity - has ability to return to original lengt...
Exam (elaborations)
Muscular system Exam Questions and answers
NewMuscular system Exam Questions and answers 
Excitability - Ability to respond to a stimulus 
Extensibility - Ability to be stretched 
Contractibility - Ability to become short and thick 
Elasticity - Ability to return to its original shape 
3 main kinds of muscles? - Cardiac 
Visceral 
Skeletal 
Cardiac muscles - Forms wall of heart - contracts to pump blood
Exam (elaborations)
Muscular system Exam Questions and answers
NewMuscular system Exam Questions and answers 
Frontalis - moves scalp elevates eyebrows 
Temporalis - 
Zygomaticus - 
Orbicularis oris - closes lips 
Orbicularis oculi - closes eyelids 
Masseter - chewing 
Sternocleidomastoid - rotates head and neck side to side 
Trapezius - moves the scapula 
Latissimus dorsi - extends shoulder, rotates arm 
Deltoid - flexes and extends shoulder 
Pectoralis - flexes shoulder, rotates arm 
Rectus abdominis - flexes vertebral column, compresses abdome...
Exam (elaborations)
Muscular system Exam Questions and answers
NewMuscular system Exam Questions and answers 
Anatomy of the Muscular System - Skeletal muscles, tendons, aponeurosis, fascia 
Physiology of the muscular system - participates in body movements, stabilizes posture, 
generates heat 
Sarcolemma - muscle cell membrane 
Sarcomere - contractile unit of a muscle fiber 
Actin - thin filaments 
Myosin - thick filament 
Tendon - Connects muscle to bone
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
skeletal muscle 
Muscle tissue that is attached to and moves the bones. 
cardiac muscle 
Involuntary muscle tissue found only in the heart. 
smooth muscle 
Muscle tissue in the walls of body organs such as the bladder, stomach and intestines. 
tendon 
A thick band that is found at the end of muscles and connects muscle to bone 
Voluntary Muscle 
A muscle that is under conscious control 
Involuntary Muscle 
A muscle that is not under conscio...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
Functions of the Muscular System: - Allows body movement by contracting and relaxing muscles 
attached to bones. Generates heat through muscle contractions to maintain body temperature. Adds 
level of protection for internal organs 
Involuntary Muscles - Muscles not under conscious control. 
Voluntary Muscles - Muscles under conscious control. 
Skeletal muscle tissue - Muscle tissue that is attached to the bones. This muscle is striated and 
und...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
contraction - a process leading to shortening and/or development of tension in muscle tissue 
voluntary - under conscious control 
involuntary - not under conscious control 
cardiac muscle - Involuntary muscle tissue found only in the heart. 
skeletal muscle - a muscle that is attached to the bones of the skeleton and provides the force 
that moves the bones; voluntary control 
smooth muscle - involuntary muscle found inside many internal organs...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
skeletal muscle 
Muscle tissue that is attached to the bones. This muscle is striated and under voluntary control. 
cardiac muscle 
Involuntary muscle tissue found only in the heart. 
smooth muscle 
Muscle tissue in the walls of body organs such as the stomach and intestines. It controls involuntary 
movement and makes the organs expand and contract. 
sarcomere 
Contractile unit of muscle 
origin 
The attachment of a muscle tendon to a stati...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
smooth muscle 
involuntary muscle found primarily in the walls of hollow, visceral organs; slow sustained contractions 
cardiac muscle 
involuntary muscle found only in the heart; steady, rhythmic contractions 
skeletal muscle 
voluntary muscle attached to bones; strong, rapid contraction 
muscle fibers 
muscle cells that contract, or shorten, when they are stimulated by the nervous system 
fascicle 
bundle of muscle fibers 
endomysium 
con...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
smooth muscle 
involuntary muscle found primarily in the walls of hollow, visceral organs; slow sustained contractions 
cardiac muscle 
involuntary muscle found only in the heart; steady, rhythmic contractions 
skeletal muscle 
voluntary muscle attached to bones; strong, rapid contraction 
muscle fibers 
muscle cells that contract, or shorten, when they are stimulated by the nervous system 
fascicle 
bundle of muscle fibers 
endomysium 
con...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
muscle fibers - long, slender cells that make up muscles 
skeletal muscles - muscles attached to bone that cause body movements. Voluntary muscle 
striated muscle - A muscle that appears banded; also called skeletal muscle. 
endomysium - Connective tissue surrounding a muscle fiber 
fascicle - bundle of muscle fibers 
epimysium - a sheath of fibrous elastic tissue surrounding a muscle. 
tendons - Connect muscle to bone
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
three types of muscle tissue - smooth, cardiac, skeletal 
circumduction - circular movement of a limb at the far end 
Which types of muscle respond to involuntary nervous signals? - cardiac and smooth 
supination - movement that turns the palm up 
found only in the heart - cardiac 
Which type of muscle contracts in peristaltic waves - smooth 
Orbicularis Oris - circular muscle of the lips; closes the mouth and protrudes the lips; the "kissing...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
Fascia - sheet of dense connective tissue that separates individual muscles and helps hold them in 
position 
Epimysium - sheath of connective tissue that surrounds a skeletal muscle (beneath the fascia) 
Perimysium - sheath of connective tissue that encloses a bundle of skeletal muscle fibers 
(fascicle) 
Endomysium - sheath of connective tissue surrounding each skeletal muscle fiber 
Tendon - cordlike connective tissue that connects muscle to ...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
Skeletal Muscle 
A muscle that is attached to the bones of the skeleton and provides the force that moves the bones. 
Cardiac Muscle 
Involuntary muscle tissue found only in the heart. 
Smooth Muscle 
Involuntary muscle found inside many internal organs of the body 
Tendon 
Connects muscle to bone 
Striated 
marked with thin lines or grooves 
Multinucleate 
having two or more nuclei 
Sarcolemma 
Muscle cell membrane 
Myofibril 
tightly ...
Exam (elaborations)
Muscular System Exam Questions and answers
NewMuscular System Exam Questions and answers 
Muscles - Make up about 40% of human's body weight 
Muscular System Functions - Provides movement, supports body posture, produces heat & 
energy, protects internal organs, moves blood, food & waste through body 
Gross movement - movement controlled by the large muscles or muscle groups; Ex- running, 
walking, swimming 
Fine movement - Movement controlled by the small muscles or muscle groups; Ex - writing, 
smiling, speaking 
4 common trait...
Exam (elaborations)
Muscular System Diagram Exam Questions and answers TERM deltoid DEFINITION shoulder LOCATION
NewMuscular System Diagram Exam Questions 
and answers 
TERM 
deltoid 
DEFINITION 
shoulder 
LOCATION