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Isaiah Castro, Period 1
Muscular - Coggle Diagram
Isaiah Castro, Period 1
Muscular
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Muscle Coverings
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Perimysium
(Fibrous Connective Tissue) Penetrating into muscles dividing into fascicles; surrounding fascicles.
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Skeletal Muscles
Facial Muscles 
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Body Muscles
Posterior
-Sternocleidomastoid
-Trapezius
-Deltoid
-Infraspinatus
-Teres Major
-Rhomboid Major
-Triceps Brachi
-Extensor Carpi Radialis Longus
-Brachioradialis
-Extensor Digitorum
-Flexor Carpi Ulnaris
-Latissimus Dorsi
-Gluteus Maximus
-Biceps Femoris
-Semitendinosus
-Semimembranosus
-Gastrocnemius
-Soleus
-Fibularis Longus
-Calcaneal (Achilles) Tendon
Anterior
-Sternocleidomastoid
-Trapezius
-Deltoid
-Pectoralis Major
-Biceps Brachii
-Brachioradialis
-Flexor Carpi Radialis
-Palmaris Longus
-Serratus Anterior
-External Oblique
-Rectus Abdominis
-Illiopsoas
-Sartorius
-Adductor Longus
-Gracilis
-Rectus Femoris
-Vastus Lateralis
-Vastus Medialis
-Gastrochemius
-Soleus
-Fibularis Longus
-Tibialis Anterior
-Extensor Digitorum Longus
Sarcomere
In the Diagram
-Thin filaments(Actin);thin filaments attached to the z-lines
-Thick filaments(Myosin);thick filaments in the middle of the sarcomere.
-Mitochondria;ATP
-Sarcoplasmic Reticulum;a network tube that runs parallel to the myofilaments.
-T-tubule;tubes that run perpendicular to the filaments.
-Sarcolemma;the membrane surrounding the muscle fiber.
-Z-lines;points where the thin filaments are anchored.
Outside of the Diagram
-M-line;the center of the sarcomere where proteins stabilize myosin.
-H-zone;center of sarcomere adjacent to M-line.
-I-band;light band of area around Z-line.
-A-band;dark band surround the length of myosin.
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Sliding Filament Theory Of Muscular Contraction
1.)Motor Neuron transmits ACh.
2.)Impulse travels to T-tubules, causing calcium to be released from sarcoplasmic reticulum.
3.)Calcium binds to actin changing its shape.
4.)The change in actin shape allows myosin heads to form cross-bridges between the actin and the myosin.
5.)ATP is used to create "power strokes" between the two filaments.
6.)Actin slides inward and shortens.
7.)The fillaments will then dissociate; go back to relax state.
8.) Then everything will reactivate; the process is repeated.
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Disorders
Duchenne Muscular Dystrophy (DMD)
Muscle destroying diseases, generally in childhood for males (2-7).
Myasthenia Gravis
Disease characterized by drooping upper eyelids, difficulty swallowing and talking, and generalized muscle weakness; essentially unresponsive muscles.
Rigor Mortis
3-4 hours after death, muscles begin to stiffen.