A&PCH09

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Which type of muscles are called muscle fibers
- Skeletal muscle
- Smooth muscle
Which type of muscles are striated
- Skeletal Muscles
- Cardiac Muscles
Which of the muscles are voluntary

Skeletal
Where are smoot muscle tissue foun

walls of hollow visceral organs such as the stomach, urinary bladder, and respiratory passages
What are the characteristics of muscle tissue
- Excitability (responsiveness or irritability)
- Contractility
- Extensibility
- Elasticity
Functions of muscles
- Producing movment
- maintains posture and body position
- stabilizing joints
- generating heat
Which type of muscle is multinucleated

Skeletal
which type of muscle is spindle shaped

smooth
muscle fibers are surrounded and bundled by what

CT
ENDOMYSIUM - surrounds each individual muscle fiber
PERIMYSIUM - surrounds each fascicle
EPIMYSIUM - overcoat of dense irregular CT what surrounds the whole muscle
FASCIA - bundles of muscle fibers
Each muscle has what
- nerves
- arteries
- veins
Skeletal muscles only contract if stimulated by a nerve
Indirect skeletal attachements
- Tnedon
- Aponeurosis
microscopic anatomy
- Sarcolemma
- Sarcoplasm
- Myofibrils
- Sacromere
- Sacroplasmic Reticulum
Muscles contract and pull on structures they are attached to
Common IM injection sites
- Deltoid
- Vastus Lateralis
Which filament contain bundled myosin molecules

thick filaments
Which filaments contain actin molecules

thin filaments
The sliding of the thin filaments past the thick filaments produces what

muslce shortening
What is the contractile unit

sacromere
Description are cardiac muscles
- uninucleate
- branching cells that fit together tightly at unique junctions called intercalated discs
Function of smooth muscle

squeeze substances through organs by alternatively contracting and relaxing

Author

Kcasabar

180227

Card Set

A&PCH09

Description

A&PCH09

Updated

2012-10-30T22:47:20Z

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