Nervous system Crossword
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
 
 
Down: 1) the beginnings of dendrites of sensory neurons2) a subdivision of the ANS; ganglia are connected to the thoracic and lumbar regions of the spinal cord; functions as an emergency system4) the outer cell membrane of he schwann cell6) a subdivision of the PNS that consists of structures that regulate the body's involuntary functions10) a group of peripheral nerve fibers bundled together14)  the layer of the brain often referred to as gray matter. It is the outer portion of the cerebrum.15) small glial cells that act as a microbe eating scavenger16) network of intersecting nerve branches17) the brain and spinal cord18) morphine like neurotransmitter released at various spinal cord and brain synapses in the pain conduction pathway20) connect the spinal cord to the peripheral structures such as the skkin and skeletal muscles21) large nucleated cells that form myelin23) a collection of nuclei found on both sides of the thalamus, outside and above the limbic system, but below the cingulate gyrus and within the temporal lobes25) help hold nerve fibers togeether and produce the myelin sheath27) the branching projections of a neuron28) largest part of the brain made up of gray and white matter; functions in mental processing29) enlarged, upward extension of the spinal cord; lowest part of the brainstem30) A neuron that conveys impulses from the central nervous system to a muscle, gland, or other effector tis.32) the response to impulse conduction over a reflex arc33) a group of 12 pairs of nerves that attach to the undersurface of the brain and conduct impulses between the brain and structures in the head, neck, and thorax35) neurotransmitters, like norepinephrine and dopamine, that may play a role in sleep, motor function, mood, and pleasure recognition36) between brains; small part of the brain between the midbrain below and the cerebrum above38) tissue in the CNS made up of cell bodies and unmyelinated axons and dendrites40) skin surface areas that are supplied by a single spinal nerve41) a neuroglial cell that has thread like extensions that extend out from the surface42) a tough, fibrous sheath that covers the whole nerve44) a microscopic space separating the axon ending of one neuron from the dendrites of another neuron45) another term for the grooves of the cerebrum48) a brain tumor50) oart if the brainstem between the medulla oblongata and the midbrain Across: 3) another term for motor neurons5) axons outside the CNS that are surrounded by a segmented wrapping of myelin7) thin wrapping of fibrous connective tissue surrounding each axon in a nerve8) another term for sensory neuron9) a subdivision of the ANS; ganglia are connected to the brainstem and the sacral segments of the spinal cord; controls many visceral effectors under normal conditions11) tissue made up of nerve tracts that are covered with myelin12) conduct impulses from sensory to motor neurons13) where the right and left hemispheres are joined16) the designation for the nerves of the body19) a specialized type of neuron pathway22) thin, fibroud wrapping around each fascicle24) another term for a nerve impulse26) the superior most portion of the brainstem31) fluid that fills the subarachnoid spaces between the pia mater and arachnoid mater in the brain and spinal cord34) a neurotransmitter that is released at some of the synapses in the spinal cord and at the neuromuscular junctions37) another term for the ridges, or convolutions, of the cerebrum39) indentations between adjacent schwann cells43) tough outer layer that lines the vertenral canal46) chemicals by which neurons communicate47) protective membranes covering the brain and spinal cord49) the changes produced by increased sympathetic impulses allowing the body to deal any type of stress51) the single clongated projection of a neuron52) second larges part of the human brain and helps control muscle contractions and maintain balance53) nerve cells54) specialized connective tissue cells that support neurons55) a white, fatty substance found in the sheath around some nerve56) consists mainly of the pituitary gland, pituitary, stalk, and gray matter and acts as the major center for controlling the ANS57) membrane between the dura and the pia mater
 

 

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