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Related Flashcards
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Cards In This Set
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Aponeurosis
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A flat sheet of connective tissue connecting muscle to other structures.
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Prime mover
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Example: a muscle is attached to the femur and tibia. When the muscle contracts the knee bends.
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Fusiform muscle
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Ex: brachioradialis
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Pennate muscle
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: ex: soleus
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Sarcomere
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The smallest contractile unit of muscle
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Aerobic training
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Endurance training
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Isotonic contraction
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A contraction in which the tension within the muscle remains the same but the length changes.
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Isometric contraction
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Would result from trying to pick up something too heavy, static tension.
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Reflex arc
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Always consists of an afferent and an efferent neuron
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Sarcomere
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A segment of myofibril between two successive Z-lines, a sarcomere contains Z-lines, A-bands (stays the same size during contractions) and I-bands.
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Schwann cells
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Form a myelin sheath around nerves
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Nissl bodies
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Comparable to the endoplasmic reticulum in other cells.
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Perineurium
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Connective tissue layer by which fascicles are held together.
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Synapse
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Consists of a synaptic knob (on the axon), a synaptic cleft and the plasma membrane of a postsynaptic neuron.
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Excitatory neurotransmitter
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Initiate an action potentials
Saltatory conduction: when impulses jump from node to node across the myelin sheath insulation
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