Muscle Physiology Flashcards
7 muscle system functions
Movement
Posture
Organ and vessel constriction
Guards entrances and exits
Body temp
Respirations
Communication(body language)
Contractility
The ability to shorten a muscle with force
Excitability
The ability for a muscle to react to stimuli
Extensibility
The ability to extend and stretch to normal and a bit beyond
Elasticity
The ability to recoil to normal position after stretched
Connective tissue sheet
Fascia
Connective tissue that surrounds the whole muscle
Epimysium
Epimysium bunched up into a cord the. Into a bone
Tendon
Dense connective tissue surrounding a group of muscle fibers and divides the muscles into smaller groups
Perimysium
Group of muscles
Fascicule
Loose connective tissue fibers around individual muscles cells
Endomysium
Nerves and blood vessels travel through?
Perimysium
Lone and skinny cell
Fiber
Cell membrane
Sarcolemma
Fluid inside the cells
Sarcoplasm
Hole that dives deep into fibers
Transverse tubles
Calcium tube that goes parallel into the fiber
Sarcoplasmic reticulum
Protein that runs the fiber lining
Myofibrils
Smallest part of muscle
Sarcomere
Long and skinny Protein with a skin bond
Actin
Protein with a thick bond
Myosin
Active cites on ?
Actin
This is needed for a muscle to let go
ATP
This travels down transverse tubules to sarcolema
Action potential