Shapes Of Skeletal Muscle Flashcards
(22 cards)
Arrangement of _ leads to different muscle shapes
Fascicles
Flat muscle example _ in abdomen wall
External oblique
Flat muscles may cover a wide area and sometimes insert into an _
Aponeurosis
An Aponeurosis is a _
Broad sheet of connective tissue
_ are spindle shaped muscles
Fusiform
Fusiform muscles look like muscles in _
Bicep
_ muscles names for their similarity to a feather
Pennate
Pennate muscles come in three forms (3)
Unipennate
Dipennate
Multipennate
Multipennate muscles resemble _
Multiple feathers placed next to each other
_ muscles surround body’s openings
Circular
Circular muscles aka _ muscles
Sphincteral
Contraction of circular muscles _
Closes opening
Circular muscles are organized in _
Concentric rings
Circular muscle example _
Orbicularis oculi
_ are fan shaped
Convergent
In fan shaped convergent muscles, origin is _ and convergent in a _
Wide
Narrow tendon
Convergent muscle example _
Pectoral muscle
Arrangement of fascicles influence muscle’s (2)
Action
Power
Muscle contracted in _ percent relaxed state
70
_ can shorten a great deal with little strength
Long, parallel muscle
Multipennate muscles are short and _
Powerful
