Download Muscular System Test Study Guide

Unit Test Study Guide: Muscular System
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Naming skeletal muscles
o Direction of muscle fibers
o Location
o Size
o Number of origins
o Shape
o Origin & insertion
o Action
Functions of the muscular system
o Movement
o Maintaining Posture
o Supporting soft tissues within body cavities
o Guarding entrances and exits
o Maintaining body temperature
Characteristics of muscular tissue
o Excitability
o Contractility
o Extensibility
o Elasticity
Types of muscle tissue and characteristics of each
o Skeletal
o Cardiac
o Smooth
Anatomy of skeletal muscles
o Muscle
o Fascicle
o Muscle fiber
o Myofibril
o Sarcomere
Organization of Connective Tissue
o Epimysium
o Perimysium
o Endomysium
o Tendons
o Aponeurosis
Sarcomeres
Thick and Thin Filaments
o Actin
o Troponin
o Tropomyosin
o Mysoin
Muscle Contraction (sliding filament theory)
Muscle Fatigue
o What is it?
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Rigor Mortis
o What is it?
o What is happening on the sarcomere level?
 Muscles are not able to release contraction, leaving the body tense
Steroids
o How do they impact muscle building?
Be able to identify the function and location of all the muscles to know. For the identification portion, you will have a
word bank.
Unit 4 Muscles
Types of Muscle: Skeletal, Cardiac,
and Smooth
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Body location
Cell Shape and
Appearance
Regulation of contraction
Speed of Contraction
Origin/Insertion
Muscle Contraction
Microscopic Anatomy
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Sarcolemma
Myofibrils
Sarcomeres
Myosin (thick filaments)
Actin (thin filaments)
Sarcoplasmic Reticulum
Trunk Muscles
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Arm/Shoulder Muscles
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Frontalis
Orbicularis oculi
Orbicularis oris
Temporalis
Zygomaticus
Masseter*
Buccinator
Sternocleidomastoid*
Platysma
Biceps brachii*
Brachiradialis
Brachialis*
Deltoid*
Hip/Thigh/Leg Muscles
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Muscles to Know – Superficial
Anterior
Head/Neck Muscles
Pectoralis major
Rectus abdominus
External oblique*
Internal oblique
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Iliopsoas
Adductor muscles*
Sartorius*
Quadriceps*
o Vastus medialis
o Intermedius
o Lateralis
o Rectus femoris
Tibialis anterior
Extensor digitorum longus
Fibularis muscles
Muscles to Know – Superficial
Posterior
Neck/Trunk/Shoulder Muscles
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Trapezius*
Latissimus dorsi*
Erector spinae
Deltoid
Arm/Forearm Muscles
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Triceps brachii
Flexor carpi radialis*
Flexor carpi ulnaris
Flexor digitorum
superficialis
Extensor carpi radialis
Extensor digitorum
Hip/Thigh/Leg Muscles
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Gluteus maximus
Gluteus medius
Hamstring muscles*
o Semitendinosus
o Semimembranosu
s
o Biceps femoris
Gastrocnemius*
Soleus*
YOU MUST KNOW THE PRIMARY
ACTIONS – SEE TEXTBOOK PAGE
211-213