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The Muscular System

The Muscular System. This ppt : 15 slide PART A-B 32 slides. Ch6-A THE MUSCULAR SYSTEM. I. OVERVIEW II. MUSCLE ANATOMY III. MUSCLE PHYSIOLOGY Types Muscles Gross Overview Tissue Review Microscopic Contraction Details

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The Muscular System

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  1. The Muscular System This ppt: 15 slide PART A-B 32 slides

  2. Ch6-A THE MUSCULAR SYSTEM I. OVERVIEW II. MUSCLE ANATOMY III. MUSCLE PHYSIOLOGY Types Muscles Gross Overview Tissue Review Microscopic Contraction Details Functions Nervous System Whole Muscle Cell Characteristics Energy for Contract. Muscle Tone Types of Contraction Effect of Exercise Ch 6-B IV. BODY MOVEMENTS V. SPECIFIC MUSCLES VI. INJECTION Rules Head & NeckSITES Muscle Movements Trunk & Arm Lower Limb

  3. IV. Types of Body MovementsA. **Six Golden Rules of Skeletal Muscle Activity Origin= Insertion = 5. Muscles can be Prime-movers: Synergists: Antagonists: Table 6.2

  4. B. Muscle Movements, Types, & Names- Depend on the Mobility of the Specific Joint • Types of Body Movements • Often in pairs for opposite movement a. *Flexion b. *Extension • *Opposite of flexion = • Hyperextension

  5. Types of Body Movements … c. *Abduction: d. *Adduction:

  6. e. Rotation f. Circumduction

  7. g. Special Names for Foot Movements i) Dorsiflexion • = is Flexion ii) Plantar flexion • = is Extension Memory Tip: POINT your TOES DOWN to the GROUND where u will PLANT your PLANTS

  8. V. Gross Anatomy of Skeletal Muscles– Specific Muscles Figure 6.21

  9. A. Head and Neck Muscles 1. Chewing muscles a. *Masseter • *Description/location • Action: • Insertion: bottom of Mandible Origin Bones: Zygomatic Bone b. *Temporalis— • *Description/Location • Action: • Insertion: Temporal bone Origin: top of Mandible 2. Neck • *Sternocleidomastoid • *Description/Location • Action • Insertion: Occipital bone, Origin: Sternum and clavicle

  10. B. Trunk & Arm Muscles • Breathing Muscles • *Intercostal muscles • *Description/Location • Action: moves Rib Cage to change width of Thoracic Cavity b. Diaphragm • Description/Location: horizontal muscle at the bottom boundary of Thoracic Cavity • Action: Changes vertical length of Thoracic Cavity NOT IN BOOK Intercostals Intercostal muscles Diaphragm Inferior View Anterior View

  11. 2. Muscles that move the Vertebral Column • *Abdominal girdle • 4 layers = 4 muscles • *Location & Description: • Type of Tendon: • Action: b. Erector Spinae • Description/Location • Action:

  12. 3. Muscles that move the Brachium • *LatissimusDorsi • *Description & Location • Action b. *Deltoid • *Description/Location • Action • Insertion/Origin: c. *Pectoralis major • *Description/Location • Action

  13. 4. Muscles that move the Antebrachium • Main part of muscle is in Brachium, above antebrachium a. *Biceps brachii • *Description/Location • Action • Origin: • Insertion: b. *Triceps brachii • *Description/Location • Action • Antagonist to _______________

  14. C. Muscles that move the Lower Limb • Muscles that move the Thigh • Major part of muscle in hip, above thigh a. *Gluteus maximus: • *Description/Location • Action b. Iliopsoas • Description/ Location • Action c. *Gluteal medius • *Description/Location • Action d. *Adductor muscles: • *Description/Location • Action Gluteus medius Iliopsoas Adductors

  15. 2. Muscles causing movement at the knee joint • Major part of muscle is in thigh, above the lower leg • *Hamstring group: • 3 separate muscles • *Description/Location • Action • Origin: posterior Coxal Bone • Insertion: posterior tibia

  16. b) Muscles causing movement at the knee joint … b. Quadriceps group-- 4 • 4 separate muscles with the same tendon for insertion • *Description/Location • Action • Origin: anterior femur • Insertion: Tibial Tuberosity of Tibia

  17. 3. Muscles causing movement at ankle • Major part of muscle is in thigh, above the lower leg a. *Tibialis Anterior • *Description/Location • Action b. *Gastrocnemius • *Description/Location • Action

  18. *VI. Intramuscular Injection Sites Shoulder Upper/Lateral Buttock Lateral Thigh Figure 6.18, 6.19b, d

  19. END

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