NUR 221 Unit 3 Test Questions with Complete Solutions

NUR 221 Unit 3 Test Questions with Complete Solutions The nervous system coordinates and controls all of the body's functions and plays a central role in maintaining __________. homeostasis The peripheral nervous system is composed of the brain and spinal cord. True False false One type of neuron is the _____, which carries nervous impulses between neurons. sensory neuron neuroma motor neuron interneuron interneuron One type of neuron is the _____, which detects environmental stimuli and transmits messages to the brain or spinal cord. interneuron motor neuron sensory neuron neuroma sensory neuron The somatic nervous system includes 12 pairs of cranial nerves and 24 pairs of spinal nerves. True False false The basic unit of the nervous system is the __________, or nerve cell. neuron Axons of many neurons are insulated by a lipoprotein covering called __________. myelin Falls are the leading cause of traumatic brain injury. True False true One type of neuron is the _____, which conveys messages from the CNS to muscles. neuroma sensory neuron interneuron motor neuron motor neuron The _____ space is filled with cerebrospinal fluid. pia mater ganglia subarachnoid arachnoid subarachnoid A contusion results from a blow to the head or sudden shaking or movement. True False false The brain is covered by three layers of tissue called the __________. meninges The largest part of the brain