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Definition
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Definition
| Receives sensory information from receptors that detect stimuli and transmits information to the CNS |
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| Transmits motor output from the CNS to the muscle tissue and glands |
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| Detects stimuli that we consciously perceive |
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| Detects stimuli that we do not consciously perceive |
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| Initiates and transmits motor output from the CNS to voluntary skeletal muscles |
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Definition
| Innervates and regulates cardiac muscle, smooth muscle, and glands without conscious control |
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| Neurons, glial cells/neuroglia |
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Definition
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Definition
| The basic structural unit of the nervous system |
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Term
| Excitability, conductivity, secretion, longevity, amitotic |
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Definition
| 5 characteristics of neural cells |
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Definition
| Found within the CNS and PNS. Smaller than neurons and capable of mitosis. Do not transmit nerve signals but do assist neurons with their functions. Offer support for the nervous system. |
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Definition
| The nerve fiber. Emanates from the cell body to make contact with other neurons, muscle cells, or glands. |
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Definition
| The first part of the axon. A triangular region where the axon emanates from the cell body. |
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| The distal end of collateral branches that splits into an array of fine terminal extensions |
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Definition
| The extreme tips of telodendria are slightly expanded regions call this |
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Definition
| The neuron control center |
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| Sensory, motor, interneurons |
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Definition
| 3 functional classifications of neurons |
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Definition
| Most common type of glial cells. Help to form the blood brain barrier |
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Definition
| Aids in the production of cerebrospinal fluid |
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Definition
| Least common type of glial cells. Defends against infectious agents and engulfs debris |
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Definition
| Rounded, bulbous cells. Myelinates and insulates CNS axons |
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Definition
| Clustered around neuronal cell bodies. Regulates waste exchange |
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Definition
| Wrapped around the axons in the PNS. Myelinates and insulates PNS axons |
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Term
| Astrocytes, ependymal cells, microglia, olyigodendrocytes |
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Definition
| 4 types of CNS glial cells |
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Term
| Satellite cells, neurolemmocytes |
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Definition
| 2 types of PNS glial cells |
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Definition
| Folds in the surface of the brain |
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Definition
| Depressions in the surface of the brain |
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Definition
| Deep grooves in the surface of the brain |
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Definition
| The dividing line down the middle of the brain |
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Definition
| Places where the cerebral hemispheres are connect by bundles of axons |
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Definition
| The largest of white matter tracts |
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Definition
| The deep groove that marks the boundary of frontal and parietal lobe |
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Definition
| The mass of nervous tissue immediately anterior to the central sulcus |
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Definition
| The mass of nervous tissue immediately posterior to the central sulcus |
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| Sensory, association, and motor |
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Definition
| Functional regions of the cerebrum |
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Definition
| This area of the brain helps people understand written or spoken language |
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Definition
| This area of the brain integrates all information being processed in adjacent lobes to provide comprehensive understanding of a current activity |
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Definition
| Encloses the third ventricle and connects the cerebral hemispheres to the brainstem |
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Definition
| Partially forms the posterior roof of the diencephalon. Houses the pineal gland and the habenular nuclei |
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| Relay signals from the limbic system to the midbrain and are involved in visceral and emotional responses to odor |
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Definition
| The paired oval masses of gray matter that lie on either side of the third ventricle |
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Definition
| A small, midline mass of gray matter that connects the right and left thalamic bodies |
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Definition
| Extends inferiorly from the hypothalamus and attaches to the pituitary gland |
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Definition
| Connects the cerebrum, diencephalon, and cerebellum to the spinal cord |
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| Sensory and motor tracts are located here. Extends to connect the brain to the spinal cord |
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Definition
| Regulates the heart, vasomotor and blood pressure, respiratory, coughing, sneezing, swallowing, vomiting |
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Term
| Dura mater, arachnoid mater, pia mater |
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Definition
| Three layers of cranial meninges |
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Definition
| The innermost of the cranial meinges. Thin layer of delicate areolar connective tissue that tightly adheres to the brain and follows every contour of the brain surface |
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Definition
| External to the pia mater. Resembles a spider web of collagen and elastic fibers |
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Definition
| The external, tough, dense irregular connective tissue layer. |
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Definition
| Cavities or expansions within the brain that are derived from the neural canal. Lined with ependymal cells and contain cerebrospinal fluid |
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Definition
| A thin medial partition that separates the two lateral ventricles |
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Term
| Buoyancy, protection, and environmental stability |
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Definition
| Three functions of the cerebrospinal fluid |
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Term
| Choroid plexus, hypothalamus, pineal gland |
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Definition
| Three places the blood brain barrier is missing |
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Definition
| Composed of multiple cerebral and diencephalic structures that collectively process and experience emotions |
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Definition
| Innervates the upper limbs |
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Definition
| Innervates the lower limbs |
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Definition
| Anterior horns regulate this: |
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Term
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Definition
| Lateral horns regulate this: |
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Term
| Sensory Neurons and Interneurons |
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Definition
| Posterior horns regulate this: |
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Definition
| A specific segment of skin supplied by a single spinal nerve |
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Term
| Cervical, Brachial, Lumbar, and Sacral |
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Definition
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