MYOFIBRIL

Pronunciation (US):

(GB):

 Dictionary entry overview: What does myofibril mean? 

• MYOFIBRIL (noun)
  The noun MYOFIBRIL has 1 sense:

1. one of many contractile filaments that make up a striated muscle fiber

  Familiarity information: MYOFIBRIL used as a noun is very rare.

 Dictionary entry details 

• MYOFIBRIL (noun)

Sense 1

Meaning:

One of many contractile filaments that make up a striated muscle fiber

Classified under:

Nouns denoting body parts

Synonyms:

myofibril; myofibrilla; sarcostyle

Hypernyms ("myofibril" is a kind of...):

fibril; filament; strand (a very slender natural or synthetic fiber)

Meronyms (parts of "myofibril"):

sarcoplasm (the cytoplasm of a striated muscle fiber)

sarcomere (one of the segments into which a myofibril is divided)

Holonyms ("myofibril" is a part of...):

striated muscle cell; striated muscle fiber (an elongated contractile cell in striated muscle tissue)

 Context examples 

They found that TnC L48Q, a troponin C form that was more sensitive to calcium, improved several characteristics of function and performance in rabbit myofibrils (contractile machinery) and mouse heart cells as well as in normal mice.

(Engineered protein restores heart function, NIH)

By measuring the amount of 3-MH in the urine, via analysis of deuterium, the rate of protein muscle catabolism can be determined and the risk of skeletal muscle atrophy or cachexia can be assessed. 3-methylhistidine is a myofibrillar-specific amino acid and is mainly found in muscle myosin and actin; proteolysis of myofibrils releases 3-MH that is excreted unchanged in the urine.

(Deuterated 3-Methylhistidine, NCI Thesaurus)