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chap 10.
Stack #205585
| Question | Answer |
|---|---|
| Two types of cells that make up neural tissue | neurons and neuroglicial cells |
| The nervous system is divided into two divisons? | CNS and PNS |
| the ? nervous system contains the brain and spinal cord | Central |
| the? nervous system contains the spinal and cranial nerves | Peripheral |
| list 2 divisons of the peripheral nervous system | sensory and motor divison |
| 2 divisions of the motor division | somatic and autonomic |
| which division of the motor division carries impulses to the heart? | autonomic |
| which divison of the motor division carries impules to the skeletal muscles? | somatic |
| Which division of the peripheral nervous system carries impules to the muscles and glands? | motor divison |
| which division of the PNS picks up sensory info and sends it to the CNS? | Sensory division |
| 3 functions of the nervous system | sensory, integrative and motor functions |
| which function uses sensory info. to create sensations, though, memory and decisions | integrative function |
| which function carries impules to effectors? | motor functions |
| Which function carries info to the CNS | sensory |
| Name the two types of matter when discussing myelination of axons | white and grey matter |
| White? Grey? | White= axons grey= dendrites |
| 3 structural types of neurons | bipolar, unipolar, and mulitpolar |
| what is the function of interneurons? | link neurons |
| EfferentAfferent? | Efferent- carries impules away CNSAfferent- carries impules to CNS |
| ___ neruons carry impulses away from CNS | motor |
| ___ neurons carry impulses toward CNS | sensory |
| 6 neuroglial cells in the PNS? | 1. Schawann 2. Satellite 3. Microglia 4. astrocye 5. oligodendrites 6. ependyma |
| sheath of insulation around axon | Schwann Cells |
| Support clusters of neuron cells (ganglia) | Satellite Cells |
| Phagocytic cells? | Microglia |
| Scar Tissue, connect neurons to blood Vessels | Astrocyte |
| Myelinating cells(insulated) | Oligodendrites |
| cilliated, line center of spinal corld | Ependyma |
| Which end of injured axon is the end where growth begins when the axon regenerates? | Proximal |
| During axon regeneration_____ cells produce a new layer of myelin sheath. | Schwann |
| Nerve impules travel from neuron to neuron at junctions called? | Synapse |
| At resting membrane potential the ions are? | Polarized(apart) |
| If a membrane has become more Neg. it has become? | hyperpolarized |
| If membrane has become less Neg. it has become? | depolarized |
| The adding of stimuli to each other is called? | summation |
| When stimuli add up to the point of producing an action potential it is known as? | threshold |
| What is ment by the nervous systems chara. is "all or none responce" | no such thing as a weak impulse |
| What is ment by refractory peroid? | reting peroid between impuless |
| 2 types of refractory peroids? | absolute and relative |
| What is diff. between the two types of refractory peroids? | absoulute= rest peroid and relative= resting but another impulse is soon to happen |
| Name 2 types of synapic potenial | EPSP and IPSP |
| which type of synapic potential increases the likeliness of action potential | EPSP |
Created by:
Mollie28
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