Term
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Definition
| Contained within the brain and spinal cord. |
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Term
| Peripheral Nervous System |
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Definition
| Composed of cranial and spinal nerves that carry impulses toward the CNS |
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Definition
| Carrying inpulses towards spinal column; sensory |
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Definition
| Carrying impulses away from the the CNS toward the effector organ; motor |
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Definition
| Responsible for sensations and motion. |
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Definition
| Regulate voluntary motor control of skeletal musscle |
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Definition
| Regulate body's internal environment through involuntary control of organ systems |
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Term
| Sympathetic Nervous System |
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Definition
| Responds to stress by mobilizing energy stores and prepares the body to defent itself. |
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Term
| Parasympathetic Nervous System |
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Definition
| Conserves energy and the body's resources |
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Term
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Definition
| The largest area in the brain |
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Term
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Definition
| Right and left hemispheres, thalamus, hypothalamus, 4 ventricles |
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Definition
| Relay center for sensory information |
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Term
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Definition
| Purpose: maintenance of a constant internal environment and implemnentation of a behavioral pattern |
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Term
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Definition
| Frontal, Parietal, Occipital and Temporal |
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Term
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Definition
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Term
| Location for Broca speech area and what two types of aphagia occur here? |
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Definition
| Frontal Lobe. Expressive aphasia and Receptive aphasia |
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Term
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Definition
| The person can hear a voice or read the print, but may not understand the meaning of the message |
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Term
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Definition
| The person knows what he or she wants to say yet has difficulty communicating it to others |
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Term
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Definition
| Involved in sensory input |
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Definition
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Definition
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Definition
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Term
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Definition
| Responsible for motor aspects of speech |
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Term
| What consition may result in problems with speech area? |
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Definition
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Term
| Cerebrum is also known as_______ |
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Definition
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Term
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Definition
| Increase surface area and neurons |
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Term
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Definition
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Term
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Definition
| Contains cell bodies and densrites of neurons. On Outside of brain, in cerebral cortex |
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Term
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Definition
| Composed of myelinated nerve fibers lies beneath the cerebral cortex. |
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Term
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Definition
| visualizes the connection between different bodyparts and areas in brain hemispheres |
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Term
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Definition
| Reflects the number of nerurons and/or density of neurons devoted to sensory input so it can be translated into a meaningful learned perception |
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Term
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Definition
| Reflects the number of nerurons and/or density of neurons devoted to motor functions so it can be translated into a meaningful learned perception |
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Term
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Definition
| Regulates posture, muscle coordination, posture and balance |
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Term
| What does brain stem connect and what does it consist of? |
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Definition
| Connects cerebrum to spinal cord and consists of midbrain, pons and medulla |
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Term
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Definition
| Corpora quadigemia, tegmentum and basis pedunculi |
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Term
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Definition
| (like a bridge)Transmits info from cerebellum to brain stem also transmits info between 2 cerebral hemispheres |
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Term
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Definition
| Regulates refelx activites such as HR, BP, repirations, sneezing, coughing |
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Term
| What does Reticular Formation do and what vital functions does it regulate? |
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Definition
| Network of connected nerve cell bodies(nuclei) within the brain stem. Regulates Cardiovascular and Respiratory. |
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Term
| Reticular Activating System (RAS) |
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Definition
| Maintain state of wakefullness |
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Term
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Definition
| Brings to brain. Transmits impulses from sensory receptors to CNS. |
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Term
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Definition
| Neuron to neuron. Transmits impulses from neuron to neuton |
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Term
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Definition
| Descending. Tranmits impulses from CNS to an effector organ. |
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Term
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Definition
| Responsible for structural support within the cell |
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Term
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Definition
| Involved in transport and of cellular products |
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Term
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Definition
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Definition
| Involved in protein synthesis |
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Term
| Most neurons don't divide but _______ neurons do divide |
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Definition
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Term
| Neurons use _____ but don't need______ |
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Definition
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Term
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Definition
| Forebrain, Midbrain and Hindbrain |
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Term
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Definition
| Cell body. Located mainly in the CNS |
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Term
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Definition
| Densely packed cell bodies in CNS |
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Term
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Definition
| Densely packed cell bodies in PNS |
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Term
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Definition
| Receives info. Extensions that carry nerve impulses toward cell body. |
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Term
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Definition
| Sends signals. Carry impulses away from cell body |
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Term
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Definition
| Cone-shaped, Nissl-free area where axon leaves the cess |
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Term
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Definition
| Insulating substance, allows ions to flow between segments, lipid material |
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Term
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Definition
| Delicate tissue that surounds each axon |
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Term
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Definition
| Interruptions at regular intervals that occur in the myelin sheath |
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Term
| In what disease state is myelin affected? |
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Definition
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Term
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Definition
| Flow of ions between segments of myelin rather than along entire length of axon |
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Term
| What is a neuron composed of? |
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Definition
| cell body, one or more dendrites, and an axon |
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Term
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Definition
| "Nerve glue" supports CNS and make up approximately half of the total brain and spinal cord volume. |
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Term
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Definition
| Region between asjacent neurons |
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Term
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Definition
| Region between the neuron and muscle |
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Term
| Characteristics of Wallerian Degeneration |
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Definition
| Swelling appears, Neurofilament hypertrophy, myelin sheath shrinks and axon portion degenerates |
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Term
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Definition
| Effects of successive, rapid impulses received from a single neuron on the same synapse. |
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Term
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Definition
| Comboned effects of impulses from a number of neurons on a single synapse at the same time. |
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Term
| Mature Cells_______divide |
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Definition
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Term
| Injury causes ________ damage |
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Definition
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Term
| 4 support neurons of the CNS |
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Definition
| Astrocytes, Oligodendrglia, Microglia, Ependymal cells |
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Term
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Definition
| Process that occurs distal to a cut in the axon |
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