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nervous system
human bio
| Question | Answer |
|---|---|
| Information about our internal and external environment is detected by structures called ___, which then convert the information into impulse | sensory receptors, |
| Nerve impulses then travel to the central nervous system (CNS) along___. Within the CNS, they are integrated, creating___ | nerves. creating sensations, memories, and emotional reactions. |
| responses (subconscious or conscious) are then made. This information is conveyed to | effectors via the motor division of the nervous system. |
| The muscles and glands whose activities are controlled by nervous activity are called: | effectors |
| In a resting neuron, the area just inside of the cell membrane is more _____ than the area just outside of the cell membrane. | negative |
| Neurons communicate chemically with each other by using | neurotransmitters at a synapse |
| A neurotransmitter which brings the postsynaptic membrane closer to threshold is | excitatory |
| 1. receptor 2. 3CNS 4. 5. | 2.sensory neuron 4.motor neuron 5. effector |
| root carrying sensory axons | dorsal root |
| root carrying motor axons | ventral root |
| The brain is connected to the spinal cord via the | brainstem |
| network of nerves that innervate upperlimb or below neck ish | brachial plexus |
| Cauda equina | horse's tail |
| What division of the nervous system functions independently and continuously, without conscious effort? | autonomic system |
| 1. Cells called _____ are specialized to send and receive nerve impulses. | neurons |
| 2. Cells called ______have a support function, though they may also send and receive impulses. | neuroglia |
| The peripheral nervous system is further subdivided into | an afferent (sensory) division and an efferent (motor) division. |
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jdl107968