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vocabulary
important word science
Regulation | allow living organisms to adapt to their environment and maintain homeostasis; |
Stimulus | Sense organs, such as the ear, and sensory receptors, |
Neuron | Nervous system that transmit signals throughout the body |
Impulse | sudden strong and reflective urge or desire to act. |
Effector | an organ or cell that acts in response to a stimulus |
Receptors | organ or cell able to respond to light, heat, or other external stimulus and transmit a signal to a sensory nerve. |
Response | by the immune system to a pathogen |
Neurotransmitters | Neurotransmitters are endogenous chemicals that enable neurotransmission. |
Irritability | cogitator ability that living organisms have to respond to changes in their environment |
Dendrites | are the segments of the neuron that receive stimulation in order for the cell |
Cyton | A virtually extinct term |
Axon | long threadlike part of a nerve cell along which impulses are conducted from the cell body |
hormones | chemicals that are produced by endocrine glands. |
glands | chemicals that are produced by endocrine glands. organ in the human or animal body which secretes particular chemical substances for use in the body or for discharge into the surroundings. |
Target cells/ | cell which bears receptors for a hormone, drug, or other signaling molecule |
Hypothalamus | region of the forebrain below the thalamus which coordinates both the autonomic nervous |
Hypersecretion | excessive production of a bodily secretion (as gastric |
Feedback mechanism | s a loop in which a product feeds back to control its own production |
Cerebrum | cortex is the largest part of the human brain |
Cerebellum | cerebellum coordinates voluntary movements such as posture, balance, coordination, and speech, resulting |
Medulla oblongata | take care of the involuntary movement |