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Luis Madrigal, The Muscular System P.5 (Names of all the muscles…
Luis Madrigal, The Muscular System P.5
Major functions of the
muscular system
Posture
Maintain body position
Motion/Movement
Changes in body position and it also movement of substances within the body
Thermogenesis
Contraction produces heat; helps with
homeostasis
Names of all the muscles
Temporalis
Obicularis Oculi
Zygomaticus
Orbcularisoris
Pectoralis Major
Deltoid
Biceps Brachii
Rectus ABdominis
Tranverse Abdominis
Adductor group
Gracilis
Sartorius
Tibialis Anterior
Fiburalis longus
Vastus medialis
Vastus Literalis
Rectus femoris
Flexor carpi radialis
Brachio radielus
external oblique
Esternocledomastoid
Massetter
Frontalis
Soleus
Gastronemius
Biceps femoris
Adductor magnus
Gluteus maximus
Internal abdominal oblique
Latissimus dorsi
Triceps brachii
Deltoid
Trapezius
3 types of muscle tissues & their major
functions/characteristics
Cardiac Muscles
Cells are long, cylindrical, branched, and has
single central nucleus
Striated – visible banding
Involuntary – can’t consciously control
Smooth Muscles
Aka visceral muscles
Cells are spindle-shaped with single central
nucleus
Involuntary
Skeletal Muscles
Cells are long, cylindrical, parallel,
and multinucleated
Striated – visible banding
Voluntary – subject to conscious
control
Body movement terminology
As a muscle contracts, it pulls the insertion
bone closer to the origin bone
Flexion decreases the angle between two
bones
Extension increases the angle between two
bones
Physiology of muscle contraction
Prime mover
contraction is
mainly responsible
Antagonist
oppose
the action of a prime mover
Synergist
help the primary mover
Thin filaments are pulled toward the
center of each sarcomere,
Structure and organizational levels of the skeletal muscle
LIgaments
bone to bone
Tendons
muscles to
bone
Body
main part of the muscle
Insertion
Moves during contraction
Origin
Does not move during contraction
Bursae
synovial-lined sacs containing
synovial fluid