NEURO 1 QUESTIONS WITH ANSWERS VERIFIED CORRECT

What does the neuro system do - controls, coordinates, regulates and communicates whith other systems in the body What does the cns consist of - brain and spinal cord What does the pns consist of - nerves of the peripheral parts of he body, comprised of spinal nerves, cranial nerves and ganglia What does the somatic nervous system control - voluntary movements of the skeletal muscles What does tne autonomic nervous system control - involuntary movements, controls the visceral organs and glands What does the sympathetic nervous system do - controls the fight or flight response, accelerate action What does the parasympathetic nervous system do - controls the rest and digest response, slows action What are neurons - transmitter cells, they will carry messages between the brain and spina cord, basic nerve cells, considered to be the functional unit of the nervous system What are neuroglia cels or glial cells - they support the cells to the neurons, protect neurons and produce csf What is csf - a clear colorless fluid that cushions or protects the brain and spinal cord What is a cell body - contains a nucleus surrounded by cytoplasm, controls function of the neuron What is an axon - an extension of the nerve cell at one ond of the cell body, contains impulses away from the cell body What is a dendrite - branching structures extended from the end of the cell body, opposite end of the axon, receive impulses What is synapse - space between the neurons What is a neurotransmiter - chemical assist in transmission of impulses between synapse What is acetylcholine - chemical that spills into the synapse, speeds up transmission of impulse, once message is sent it will be deactivated What is norepinephrine - chemical that assist in wakening in deep sleep, assist with dreaming and mood regulation What is dopamine - chemical that affects motor function and subconscious movement of the skeletal muscles, emotinal responses. Important with parkinsons disease- lack of it What is serotonin - chemical that induces sleep, affects percepiton by our senses, temp control, mood control What are myelinated coverings - white fatty material that will cover many neurons fivers, helps to increase speed of nerve impulse transmission What are unmyelinated coverings - gray, do not transmit verve impulses as rapidly What are sensory neurons - afferent, sends info to the cns from the muscles or the skin What are motor neurons - efferent, sends infor from teh cns tot eh muscles or organs What does the frontal lobe do - written speech, verbal speech, motor ability, forming concepts, judgment formation What does the temporal lobe do - provides auditory stimuli for hearing, understanidng spoken language, memory is stored, contains the olfactory center for smell What does the parietal lobe do - interoperates sensory impulses from the skin such as pain, temp, touch. Part of the brain that helps regonginze our body parts What does the occipital obe do - visual center for seeing and reading Where is the diencephalon - lies beneath the cerebrum, contains 2 parts: thalamus, hypothalamus What does teh thalamus do - relay station for sensory impulses What does the hypothalamus do - controls the body temp, fluid balance, apatite, and certine emotions, sympathetic an parasympathetic, pituitary gland are under its control What does the brain stem consist of - mid braine, pons, medulla oblongata, connects spinal cord and cerebrum What does the midbrain do - responsible for motor movement, reylays imoulses, visual and auditory reflexes. Superior portion What do the pons do - connects the midbrain to the medulla oblongata, send impulses and controls resperations What does the medulla oblongata do - controls heart rate, breathing rhythem, swalowing, coughing, sneezing, vomiting, hicups, regluates bp by controling the diameter of the blood vessles, distal portion