Coordination and Control

Coordination and Control sample questions with answers Stimuli - Answer-An internal or external change that brings about a response. Brain Stem - Answer-Connects the brain and spinal cord, controls involuntary function Motor Neurons - Answer-It passes from the central nervous system to a muscle and conducts an impulse that causes movement Neuron - Answer-basic functioning unit of the nervous system, made up of a cell body, dendrites, and axons Cerebrum - Answer-Largest part of the brain. controls memory, language and thought Sensory Neuron - Answer-convert external stimuli from the organism's environment into internal electrical impulses Dendrites - Answer-Receive messages from other neurons and send them to the cell body Cerebellum - Answer-coordinates your voluntary muscle movements, regulates balance and posture Axon - Answer-Carry messages away from the cell body Reflex - Answer-Is an involuntary, automatic response to a stimulus synapse - Answer-gap between neurons Central Nervous System - Answer-includes brain and spinal cord Peripheral Nervous System - Answer-connects CNS to the rest of the body, using sensory and motor neurons Somatic (PNS) - Answer-controls voluntary actions Autonomic (PNS) - Answer-involuntary actions (breathing, digestion, heart rate) olfactory senses - Answer-sense of smell auditory sense - Answer-hearing eardrum - Answer-thin membrane between the outer ear and the inner ear spinal cord - Answer-tubelike structure of neurons retina - Answer-the area in back of the eye that contains your rods and cones (photoreceptors) rod - Answer-photoreceptor in the eye that distinquishes shapes of objects (B&W) cones - Answer-receptor cells near the center of the retina and that function in daylight or in well-lit conditions. Color vision. sensory system - Answer-part of the nervous system that detects or senses the environment endocrine system - Answer-consists of organs and tissues that release chemical messages into the bloodstream hormone - Answer-Chemical messengers, produced by the endocrine glands in one part of the body and carried in the bloodstream to another part.