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56 Cards in this Set
- Front
- Back
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3 types of muscles?
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1.Skeletal=striated=voluntary
2. Smooth=involuntary 3. cardiac muscles (myocardium) |
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Type of muscles also known as striated or voluntary?
we command this to move |
skeletal=striated=voluntary
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type of muscles that does not need a command to contract, brain tells it to move
involuntary striation not visible |
smooth muscles
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type of muscles control: tongue, soft palate, facial
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skeletal (voluntary)
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type of muscles control diaphram
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Striated voluntary skeletal
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muscles control heart
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cardiac
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type of muscles that is striated but it's involuntary
it has the ability to contract on it's own |
cardiac muscles
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muscles has one funtion and it's to?
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accomplish work by getting shorter, bands in muscles connected by striation
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skeletal muscle orgin -> insertion
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orgin least movable bone
insertion most movable bone |
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muscles contract under impluse of never. the junction where the nerve and muscles meet is?
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neuromuscluar junction
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2 types of protein filaments?
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1. myosin: thick filament
2. actin: thin filament |
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smallest and shortest contractile unit of muscles
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sarcomere
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when muscles group together it's called
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muscle bundle
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segment between a sacomere is called
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z bands
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myofibers are made up of 100's of?
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myofibrils
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sacomere are located?
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in the myofibril
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main ion for muscle contraction
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ca++ calcium
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main ion for nerve function
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na++ sodium
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distance between 2 z bands
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sacomere
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muscles arrange in bundles->
1 muscles = 100's bundles 1 bundle = many myofibers myofibers=1,000's myofibrils which then help to |
contract
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what's attach to the z bands?
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actin filaments
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nerve system broken down into 2 systems
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central nervous system
peripheral neverous system (PNS) |
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central neverous system include
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brain
spinal |
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peripheral nervous system includes:
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spinal nerve, craninal nerve (12), PNS= sensory, motor, ans (sympathic fight vs. flight/ parasymphatic rest vs. digest)
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CNS<- sensory
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afferent impluse
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CNS-> motor
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efferent impluse
(motor=effect) |
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neuron includes?
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dendrite, cell body, and axon
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neuron always starts off and end where?
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starts at dendrite and ends at the axons
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nerve impluse is generated by
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stimulus
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stimulus sets off electrical current, when the channels open up na+ goes in and then enters the nerve. inside now + and outside -. after impulse passes na+ pumps backed out turning to a resting stage which is called
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polarized
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outside a nerve (?) charge dominates
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+
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inside a nerve (?) charge dominates
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-
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flow of na++ inside a nerve
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depolarization
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flow of na++ outside a nerve
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repolarization
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bags of chemicals that released and attaches to the dentrite of the next nerve
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neurotransmitter
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end of one axon, cleft, and begining of the next dendrite
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synape
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space between 2 nerves
gap between the axon and dentrite |
synaptic cleft
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schwan cell that wrap around nerve in a coating like frosting
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myelin
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bare gap between 2 schwan cell- it has expose axons
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node of ravier
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what keeps everything in the cells?
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cell membrane
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what acts as a selectors- it's selects what can come in and out
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semi-permeable
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brain center that include dna and chromatin
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nucleus
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has a double layer membrane with holes, also has rna and is responsible for deciding what protein the cell needs to make
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nucleous
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term for taking things in
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endocytosis
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term for taking things out or excrete
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exocytosis
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term used to describe eject or destroy stuff
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phagocytosis
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make protein
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endoplasmic reticulum
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endoplasimic reticulum
rough: smooth: |
rough: ribosomes
smooth: no ribosomes |
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reconfigure protein change it to a active configuration
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golgi complex
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long chain of amino acids
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protein
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generate energy in a form of ATP
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mitochondria
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mitochondria has a double membrane, the inside membrane are folded. what are the folds called
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cristea
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bags of enzymes
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lysomes
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mitocondria has it's own dna that is different from the nucleus. where does it come from
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one's mother
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? is the ONLY sensory organ in the body because it interprets our senses
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The brain
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is a signal that travels from the central nervous system out to the peripheral and is referred to as a efferent impulse (motor= causing effect)
Example is a hand being put on a hot stove |
Motor impulse
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