1 / 17

The Muscular System

The Muscular System. Chapter 10. The Muscular System. Structure/function of muscles. Organization of Muscles. 600 Human skeletal muscles General structural and functional topics _____________________________ connective tissues of muscle coordinated actions of muscle groups

Roberta
Download Presentation

The Muscular System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. The Muscular System Chapter 10

  2. The Muscular System • Structure/function of muscles

  3. Organization of Muscles • 600 Human skeletal muscles • General structural and functional topics • _____________________________ • connective tissues of muscle • coordinated actions of muscle groups • _____________________________

  4. The Functions of Muscles • Movement of body parts and organ contents • ____________________________________ • ___________________ - speech, expression and writing • Control of openings and passageways • ____________________

  5. Connective Tissues of a Muscle • Terms: • _______________ • _______________ • Endomysium • Fasicle • ______________ • ______________ • Deep fascia

  6. Location of Fascia • Deep fascia • ____________________________ • ______________________________ • adipose between skin and muscles

  7. Parts of a Skeletal Muscle • ______________ • attachment to stationary end of muscle • Belly • _______________ _______________ • _______________ • attachment to mobile end of muscle

  8. Skeletal Muscle Shapes • _____________________________ (biceps brachii m.) • thick in middle and tapered at ends • Parallel muscles have parallel fascicles • rectus abdominis m. • Convergent muscle • broad at origin and tapering to a narrower insertion • ________________ muscles (rectus femoris and deltoid) • fascicles insert obliquely on a tendon • _________________________________________________ • ________________ (orbicularis oculi) • ring around body opening

  9. Muscle Actions • Prime mover or agonist • __________________________ • ______________________ aids the prime mover • stabilizes the nearby joint • modifies the direction of movement • Antagonist • ___________________________ • preventing excessive movement and injury • _________________________ • prevents movement of bone

  10. Muscle Actions during Elbow Flexion • Prime mover (agonist) = brachialis • Synergist = biceps brachii • Antagonist = triceps brachii • Fixator = muscle that holds scapula firmly in place • rhomboideus m.

  11. Bipennate parallel circular convergent multipennate fusiform unipennate

  12. fiber • Fibril • perimysium • Fasicle • endomysium • Epimysium • Deep fascia

  13. Intrinsic and Extrinsic Muscles • ___________ are contained within a region such as the hand. • ______________ move the fingers but are found outside the region.

  14. Skeletal Muscle Innervation • _____________ arising from the brain • exit the skull through foramina • numbered I to XII • ____________________ arising from the spinal cord • exit the vertebral column through intervertebral foramina

  15. How Muscles are Named • English names for muscles are modifications of the Latin names. • Table 10.1 = terms used to name muscles • _______________ = elevates a body part • profundus = deepest • _____________________ = having 4 heads

  16. Athletic Injuries • Vulnerable to sudden and intense stress • Proper conditioning and warm-up needed • Common injuries • _____________________ • pulled hamstrings • _____________________ • Treat with rest, ice, compression and elevation • “No pain, no gain” is a dangerous misconception

More Related