Muscular System Flashcards
Function of the muscular system?
A system of tissues that contact and relax to move various parts of the body
How many muscles in the human body?
630
WHat are the 3 parts of a muscle? Describe
Origin (part closest to the skeleton, fixed)
Belly (the middle )
Insertion (the movable portion, furthest from skeleton)
What kind of muscles are under voluntary control?
Skeletal muscles
What are smooth muscles?
exist in the digestive system and circulatory system to move food and blood, involuntary function
What direction should muscles be massaged?
From insertion to the origin
Muscles of mastication?
Masseter
Temporalis
Apponeurosis is what?
A tendon
What are the neck muscles?
sternocleidomastoid
platysma
What muscle closes the eyes?
orbicularis occuli (closes eyes)
Name ALL the muscles on diagram (clockwise from occipitalis)
occipitalis occipitofrontalis apponeurosis frontalis corrugator nasalis orbicularis oculi zygomaticus major zygomaticus minor buccinator orbicularis oris depressor labii inferiorus triangularis Digastric muscle platysma trapezius sternocleidomastoid temporalis massester
What muscle lowers eyebrows and causes wrinkles in bridge of nose?
procerus
WHat muscle closes mouth? or smokers have wrinkles on?
orbicularis oris
What muscle causes wrinkles across forehead?
corrugator
