NURS 406 ASSESSMENT LEADERSHIP AND COMMUNITY HEALTH QUESTIONS & ANSWERS BEST EXAM SOLUTIO, Exams of Nursing

Download NURS 406 ASSESSMENT LEADERSHIP AND COMMUNITY HEALTH QUESTIONS & ANSWERS BEST EXAM SOLUTIO and more Exams Nursing in PDF only on Docsity! BIOD 152 Module 1 Exam 1 100% Questions and Answers Question 1 2.5 / 2.5 pts The neuron pictured, below, is best described as: Bipolar Correct! Multipolar Multipolar Unipolar Pseudounipola r Question 2 2.5 / 2.5 pts This part of the autonomic system increases digestion. Correct Answer BIOD 152 Module 1 Exam 1 100% Questions and Answers Your Answer: Parasympathetic Parasympathetic Question 3 2.5 / 2.5 pts An efferent neuron carries information: *** From the central to the peripheral nervous system ****** From the peripheral to the central nervous system Within the central nervous system Within the peripheral nervous system Question 4 2.5 / 2.5 pts This part of a neuron conducts nerve impulses towards the cell body. Your Answer: Dendrites Dendrites Correct! BIOD 152 Module 1 Exam 1 100% Questions and Answers Sensory (Afferent) Question 10 2 / 2 pts A postsynaptic neuron would be found: Before the synapse After the synapse Inside the synapse Only in the central nervous system Question 11 3 / 3 pts What is the location and function of Astrocytes? Your Answer: It is found in the Central Nervous system. Lead the axon and help as support of the the synaptic and help to control the blood flow in the brain. • Location: Central nervous system (CNS) • Function: Regulation of chemical environment inside CNS, forming a physical barrier (blood-brain-barrier) by wrapping BIOD 152 Module 1 Exam 1 100% Questions and Answers BIOD 152 Module 1 Exam 1 100% Questions and Answers around blood capillaries • Question 12 3 / 3 pts A patient’s spinal cord was severed in a car accident. Would the patient be expected to regrow axons in their spinal cord? Why or why not? Your Answer: No they wont, because the spinal cord is located in the central nervous system. Just the peripheral system axons are the only able to regrow. BIOD 152 Module 1 Exam 1 100% Questions and Answers Question 13 10 / 10 pts BIOD 152 Module 1 Exam 1 100% Questions and Answers • No; Only peripheral system axons are capable of regeneration. The spinal cord is in the central nervous system. Name and describe what is occurring in the neuron cell membrane in section 4 of the diagram. Include the charge of the membrane during this phase. Your Answer: Afterpolarization: here the potassium doors are decreseasing the closure therefore there is an undershoot of the potential. As a result the polarity fall below -70mV then goes back to -70mV once at resting state starts. • Afterpolarization (Hyperpolarization) Potassium gates are slow to close and there is an undershoot of the potential. • The charge drops below -70mV and then returns to -70mV once at resting state again. BIOD 152 Module 1 Exam 1 100% Questions and Answers Correct! BIOD 152 Module 1 Exam 1 100% Questions and Answers neuromuscular junction? The NMJ terminates on neurons within the brain and spinal cord. The NMJ terminates on a muscle fiber. The NMJ terminates on a presynaptic motor neuron. The NMJ does not have a synapse. BIOD 152 Module 1 Exam 1 100% Questions and Answers BIOD 152 Module 1 Exam 1 100% Questions and Answers Question 18 2.5 / 2.5 pts How is a message sent from one neuron to another? There is about 1 minute fluid filled space named synapse within the terminal axon and the sending neurons. When the impulsed nervous get to the end of the terminal axon the neurotransmitter are deposited inside the synapse. Those one attached to the receivers of the following neurons. Here the Sodium opens which create Depolarization. There is a minute fluid-filled space, called a synapse, between the axon terminal of the sending neuron and the dendrite of the receiving neuron. When a nerve impulse reaches the end of an axon, neurotransmitters are released into the synapse. These bind with a receptor on the next neuron, opening Na+ gates in the receiving dendrite which causes depolarization and the impulse is carried. Question 19 What neurotransmitter is found at the neuromuscular junctions? Your Answer: ACh BIOD 152 Module 1 Exam 1 100% Questions and Answers True Correct BIOD 152 Module 1 Exam 1 100% Questions and Answers Acetylcholine (ACh) Question 20 True or False: Action potentials travel in one direction within the same neuron. (only one direction in the same neuron) False BIOD 152 Module 1 Exam 1 100% Questions and Answers Correct! BIOD 152 Module 1 Exam 1 100% Questions and Answers Question 25 4 / 3 pts What is false about the stretch reflex? The effect of the motor signal is to relax a muscle. The patellar reflex tests the stretch reflex of the quadriceps femoris. The muscle spindle detects stretch within the muscle. Stretch reflexes help to decrease the stretch on a muscle. Question 26 5 / 4 pts An interneuron inside the spinal cord is part of the: A. Peripheral nervous system B. Somatic system C. Autonomic system D Correct! D. Central nervous system E. A&C F. B&D Question 27 BIOD 152 Module 1 Exam 1 100% Questions and Answers BIOD 152 Module 1 Exam 1 100% Questions and Answers 7 / 10 pts Answer the following essay questions: You touch a hot pan when cooking. List out the steps, in detail, of the nervous pathway of the reflex that occurs. Include any sensory organs involved and the action of the reflex. Your Answer: The sensory neuron detects the touch, then it sends signal through the ganglion in then the sensory neuron synapses in the gray matter in the spinal cord in to the motor neuron. Then the motor neuron sends signal to the ventral root and synapses back. BIOD 152 Module 1 Exam 1 100% Questions and Answers BIOD 152 Module 1 Exam 1 100% Questions and Answers CORRECT ANSWER Flexor withdrawal reflex: • Pain receptor in skin • Sensory (afferent) neuron through DRG • Interneurons in spinal cord: • (1) Excitatory to biceps • (2) Inhibitory to triceps • Motor neurons: Contract biceps, inhibit triceps • Action: Elbow flexion pulls hand away from flame. Question 28 0 / 10 pts Answer the following essay questions: Botulism is a disease caused by a neurotoxin that interferes with the release of Acetylcholine. Patients with this disease experience flaccid paralysis, or the inability to contract their muscles. Explain why this would occur. CORRECT Answer: The nervous system interacts with the muscular system at the neuromuscular junction. Acetylcholine must be released from the presynaptic motor neuron into the synapse to bind onto the muscle fiber, eventually causing a muscle contraction. Without the release of acetylcholine, there will be no interaction between the nervous BIOD 152 Module 1 Exam 1 100% Questions and Answers