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14 Cards in this Set
- Front
- Back
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Osteons Compact Bone |
Central canal -blood vessels & nerves / Concentric lamellae- layers of bone tissue/ Osteocytes - in lamellae between lamellae/ Canaliculi - tiny canals that allow osteocytes to communicate |
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Red blood cells |
7.5 diameter / biconcave disc shape/ transport O2 and CO2 / hemogloblin- protein + iron that reversibly binds oxygen |
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leukocytes |
help defend against infection |
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Granulocytes |
Neutrophils/ Eosinophils/ basophils |
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Agranulocytes |
lymphocytes & monocytes |
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Platelets |
cell fragments about 2 diameter / help from blood clots |
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Properties of muscle tissue |
Excitability & contractility |
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Excitability |
responds to stimuli generates electrical charges/ nervous tissue is also excitable |
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Contractility |
creates tension, may shorten/ actin & myosin slide past one another/ elasticity - returns to original length/ extensibility - can stretch |
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Three muscle tissue types |
Skeletal / cardiac/ Smooth |
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Skeletal |
long cylindrical fiber/ multiple nuclei, striated/ somatic nervous system |
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Cardiac |
short, branched cell/ single nucleus, striated/ autonomic nervous system |
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Smooth |
spindle -shaped cell/ single nucleus; no striations , autonomic nervous system |
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Neuromuscular junction |
motor neurons control skeletal muscle contraction/ synaptic knob of motor neuron NMJ with motor endplate of skeletal muscle fiber/ acetylcholine (ACh) -neurotransmitter |
