Muscle Tissue Myology The scientific study of muscles
- Slides: 22
Muscle Tissue
Myology The scientific study of muscles
Orthopedics Branch of medicine concerned with the prevention or correction of disorders of the musculoskeletal system
Characteristics of Muscle Tissue Excitability – the ability to respond to a stimulus Contractility – the ability to shorten when stimulated Extensibility – the ability to be stretched Elasticity – the ability to return to the original size
Functions of Muscle Tissue Motion – body movements as well as moving substances within the body Posture – postural muscles continuously contract when awake to hold the body upright Heat Production – muscular contraction produces 85% of the body’s heat
Skeletal Muscle Location – attached to bones Appearance – striated Nervous Control - Voluntary
Cardiac Muscle Location – The Heart Appearance – striated Nervous Control - involuntary
Smooth Muscle Location – walls of hollow organs Appearance – non-striated Nervous Control - involuntary
Connective Tissue Fascia – sheets or bundles of fibrous connective tissue n n Superficial Fascia – just beneath the skin Deep Fascia – Holds muscles together w Epimysium – covers the entire muscle w Perimysium – covers a bundle of muscle fibers w Endomysium – covers individual muscle fibers
More connective tissue Tendon – cord-like extension of deep fascia that connects muscle to bone Aponeurosis – a sheet of connective tissue, similar to a tendon that attaches muscles
Nerve and Blood Supply Highly vascular and highly innervated n n Need to respond to stimuli (nerves) Uses lots of energy (ATP) so needs blood
Histology of Muscle Tissue Myofibers – muscle fiber (cell) n n Sarcolemma – plasma membrane Sarcoplasm – cytoplasm Sarcoplasmic Reticulum – ER Transverse Tubules (T-Tubules) – tubes that extend across the myofiber and open to the outside.
n n n Myofibril – structures that make up the fibers Myofilaments – structures that make up the fibrils Sarcomeres – basic functional unit of skeletal muscles
http: //www. brookscole. com/chemistry_ d/templates/student_resources/shared_ resources/animations/muscles. html
SARCOMERES Z-line – end of a sarcomere A-band – dark area made of think and thin filaments I-band – light area made of only thin filaments H-zone – light area made of only thick filaments
http: //highered. mcgrawhill. com/sites/0072495855/student_view 0/chapter 10/animation__sarcomere_co ntraction. html
Proteins Actin – protein that makes the thin filaments Myosin – protein that makes the thick filaments
Myology Resources http: //highered. mcgrawhill. com/sites/0072495855/student_view 0/chapter 10/
- Fiber myology
- Muscles and muscle tissue chapter 9
- Lamina praevertebralis
- Spinohumeral
- Pig anatomy
- British myology society
- Jaringan epitel dapat ditemukan di
- Is skeletal muscle an organ
- Sarcomere
- Cardiac muscle
- Eccentric movement
- Muscle tissue ppt
- Classification of muscle tissue
- Skeletal muscle tissue description
- John wiley & sons
- Adipose epithelial tissue
- Muscle tissue
- Skeletal muscle tissue 40x
- Muscle tissue
- Summation anatomy
- Groups of cells with a common structure and function.
- The muscular system chapter 4
- Types of muscle tissue