MA600 Exam Questions and Answers||A+ Solution guide(Verified)

MA600 Exam Questions and Answers||A+ Solution guide(Verified) Divisions of the Nervous System - Answer- central nervous system and peripheral nervous system Neuron - Answer- a specialized cell transmitting nerve impulses; a nerve cell. sensory afferent - Answer- transmit impulses peripheral TO receptors cns motor efferent - Answer- carry impulses away from the CNS Neuroglia - Answer- cells that support and protect neurons number of cranial nerves - Answer- 12 number of spinal nerves - Answer- 31 pairs general senses - Answer- temperature, pain, touch, pressure, vibration, proprioception special senses - Answer- vision, hearing, taste, smell, equilibrium What is sensory adaptation? - Answer- diminished sensitivity as a consequence of constant stimulation What are taste buds? - Answer- nerve endings on the tongue and in the lining of the mouth which provide the senses of taste what stimulates taste receptors - Answer- chemicals in food 4 taste sensations - Answer- sour, salty, sweet, bitter Glossopharyngeal function - Answer- taste and swallowing sensory fibers from taste receptors on posterior 1/3 of tongue parietal lobe - Answer- receives sensory input for touch and body position occipital lobe - Answer- A region of the cerebral cortex that processes visual information What does the olfactory nerve do? - Answer- receives input from olfactory (smell) receptors in nasal cavity of odorants stye - Answer- inflammation of the sebaceous glands what is the optic disc - Answer- the raised disk on the retina at the point of entry of the optic nerve, lacking visual receptors and creating a blind spot fovea centralis produces what? - Answer- indented area located on the retina of the eye, center of the macula or macula tutee. contains cells called cones, which take the light that comes into the eye as an image translates it into a nerve impulse that travels to the brain and becomes something that can be see. what is the function of cerumen? - Answer- ( earwax) helps keep ear clean what does cranial 8 do? - Answer- hearing and equilibrium exocrine - Answer- secrete chemical substances into ducts that lead either to other organs or out the body endocrine - Answer- ductless glands that empty their hormonal products directly into the blood what are examples of exocrine glands - Answer- sweat, sebaceous and mammary glands