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Neural Control & The Senses

Across
Nervous system that carries signals to and from skeletal muscle, tendons, and the skin
Nervous system that carries signals to smooth muscle, cardiac muscle, and glands
A mesh of neurons with no central organized organ is called a nerve ____
Short, branched extensions that receive information
Nervous system consisting of the brain and spinal cord
Division of the autonomic nervous system that predominates in times of stress or danger; brings about the fight or flight response
Detect color
Detect a magnetic field to perceive direction, altitude or location
Activated when we experience physical or emotional pain
Matter that consists mainly of myelinated axons
Chemical signal released by a neuron's axon terminals
A cytoplasmic extension that conveys electrical signal along its length and releases chemical signals from its endings
The membrane potential of a neuron that is not being stimulated is called the ______ potential
Sensations are localized to a specific body part
Fluid that surrounds and fills cavities in the brain and spinal cord
Division of the autonomic nervous system that predominates under normal circumstances; facilitates resting and digesting
Membranes that surround a protect the brain and spinal cord
Down
Becomes active when we are fearful, and its allows us to recognize emotions in the expressions of others
Pain receptors, detect injury
The potential at which gated sodium channels open
An involuntary response to a stimulus
Detect dim light
Awareness of a stimulus
Detect changes in pressure, position, or acceleration
Detect the presence of specific molecules in an environment
Makes our heart pound and our palms sweat when we are fearful
Plays an essential role in forming memory of facts and impressions
Matter that includes neuron cell bodies, dendrites, and axon terminals, as well as neuroglial cells
Sensations arise from internal soft organs and can be difficult to pinpoint
A bundle of axons enclosed within a sheath of connective tissue
Central, integrating organ of a nervous system