chapter 6: tendons Flashcards
Tendons function is what?
mechanically attach muscle to bone or other muscle
to transmit the muscle contraction force
Tendons are primarily collagen (95-99%) but also what fibers?
some elastic fibers and some reticular fibers.
What composes the structure of tendons
collagen, minimal ground subject, fibrocytes, vascularity, and associated CT layers
Fibrocytes can also be called what in tendons
tenocytes or tendinocytes
Vascularity is limited but which part of the tendon has more
the ends
What are the three CT layers associated with tendons
endotendineum, epitendineum and peritendineum
Endotendineum is a thin layer of CT that is surrounded by what?
collagen I bundels
Endotendineum is or is not vascular
it is
endotendineum does or does not have nerves present?
it does
endotendineum has how many cell types?
multiple cell types
epitendineum is another thin layer of CT that surrounds what?
the entire tendon
Is the epitendineum or the endotendineum more fibrous
epitendineum
what are the two major layers of the CT layers
endotendineum and epitendineum
The peritendineum is a sheath of what?
a sheath of fibrous CT investing a fiber bundle of a tendon
what is the function of the CT layers
- provides mechanical connection to muscle CT layers
2. offers repair potential from CT sites
Golgi tendon organ is also known as what?
neurotendinous spindles
what is the location of the Golgi tendon organ?
junction of tendons and muscles
Golgi tendon organs are composed of what
collagen fibers and free nerve endings
what is the function of Golgi tendon organs?
monitor force of the muscle contraction
Sharpey’s fibers are bundles of what?
collagen I that extends from tendon into the periosteum and/or bony matrix
Tendons are very strong but once injured how long does it take to repair?
it takes a long time
How one does it usually take to make new collagen I fibers?
about a hundred days
how long does it take to make enough collagen I to repair an injury
several months
what can develop during the healing process
fibrous adhesions
what are some current treatments for tendon repair
- rest is the best (time)
- physical therapy
- ice
- braces and other support
- cold laser
- chirocare
what helps prevent fibrous adhesion from occurring
physical therapy
