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| contains the cell body of a sensory neuron |
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| gross and fine motor movement |
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| soundind out unfamiliar words |
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| evaluates body position and momentum |
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| helps maintain the normal rhythm of breathing |
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| functions as the cardiovascular and respiratory center |
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| separates the frontal from the parietal lobe |
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| outlines the temporal lobe |
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| separates the cerebrum into hemispheres |
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| separates the cerebral hemisphere from the cerebellum |
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| the somatic sensory cortex |
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| relationship with hypothalamus |
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| relay stations of the olfactory pathways |
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| point where the optic nerves pass |
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| separates the lateral ventricles |
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| functions as a relay center that edits impulses |
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| vitally important to overall body homeostasis |
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| setting the biological clock |
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| enables the hemispheres to function as a coordinating whole |
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| networks of blood capillaries |
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| cerebral aquaduct of Sylvius |
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Definition
| connects the 3rd and 4th ventricles |
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| 4 functions of the nervous system |
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Definition
1. irritibility
2. conductivity
3. integration
4. initiation of response |
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| why is a neuron pathway required? |
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Definition
| because one neuron cannot perform all the functions performed by the nervous system |
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Definition
| series of neurons that do not touch |
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| how is the electrical impulse carried out? |
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Definition
| its carried across the synapse by the neurotransmitter chemical acetylcholine |
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| how is impulse conduction discharged? |
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Definition
| by the enzyme acetylcholinesterase |
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| 3 types of neuronal pathways |
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Definition
1. ascending tracts
2. descending tracts
3. reflex arc |
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| 3 sensory neurons heading towards the CNS |
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| 2 motor neurons heading away from the CNS |
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| series of neurons going to and from the CNS |
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| where does the sensory neuron send the impulse? |
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| where does the motor neuron send the impulse and what does it do? |
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Definition
| from the CNS and initiates the response |
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| what does the effector do? |
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Definition
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| What is not a part of the nervous system? |
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Definition
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| what is the most simple reflex? |
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Definition
| innate, inborn, intrinsic |
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| rapid, predictable motor response to a stimulus and is unlearned, unpremeditated, and involuntary |
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| What is a learned or acquired reflex a result of? |
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| skeletal muscles contract |
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| downward flexion, curling of the toes |
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| great toe dorsiflexes and smaller toes fan laterally |
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| Babinski's sign is normal/abnormal in who? |
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Definition
normal in babies up to 1 year
abnormal in adults |
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| equal elevation on either side of uvula when stroked |
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| What reflexes may be autonomic? |
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| digestion, elimination, blood pressure, sweating, salivating |
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| where are cranial nerves located? |
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| underside of the brain and brain stem |
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| how many pairs of cranial nerves do we have? |
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Definition
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| How are cranial nerves named? |
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Definition
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| What are the functions of cranial nerves? |
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Definition
| activities relating to the head and neck |
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| Where are spinal nerves located/where do they travel? |
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Definition
| exit the spinal cord via the intervertebral foramen |
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| How many pairs of spinal nerves do we have? |
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Definition
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| How are spinal nerves named? |
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Definition
| by the point of exit from the vertebrae |
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| connective tissue that covers the brain and spinal cord |
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| Where does the pia mater adhere to? |
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Definition
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| Where do the meninges extend to? |
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Definition
| past the spinal cord to S2 |
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| Where does the spinal cord end? |
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Definition
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| Where is an epidural performed? |
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| anesthesia given into the space above the dura mater |
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| inflammation of the meninges |
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| circulates in, around, and outside the brain and spinal cord, takes oxygen and nutrients and removes CO2 and wastes, and protects and adds buoyancy |
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| Where does cerebrospinal fluid circulate? |
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Definition
| in the ventricles of the brain, the central canal of the spinal cord, and in the sub-arachnoid space |
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| Cerebrospinal fluid is a watery brother produced by what? |
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