Nervous System Anatomy and Physiology, Exams of Nursing

Download Nervous System Anatomy and Physiology and more Exams Nursing in PDF only on Docsity! BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 Nerve Your Answer: Nerve This is a bundle of axons found in the peripheral nervous system. Not yet graded / 2.5 pts Question 1 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 This part of the autonomic system accelerates the heart beat and increases breathing rate. Your Answer: Not yet graded / 2.5 pts Question 2 5/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 A neuron going to the bicep of the forearm is part of the: A. Central nervous system B. Peripheral nervous system C. Autonomic system D. Somatic system E. A&C Correct! F. B&D 6/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 The neuron pictured, below, is best described as: 2 / 2 pts Question 6 7/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 Correct! Bipolar It has two extensions from the central cell body. Multipolar 10/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 An afferent neuron carries information: From the central to the peripheral nervous system 2 / 2 pts Question 9 from one neuron to another. 11/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 Correct! Only in the central nervous system Inside the synapse After the synapse Before the synapse A postsynaptic neuron would be found: 2 / 2 pts Question 10 Correct! From the peripheral to the central nervous system Within the central nervous system Within the peripheral nervous system 12/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 Location: Peripheral nervous system (PNS) Function: Regulation of environment of neuron cell bodies Your Answer: Satellite cells surround the body of peripheral neurons. They regulate the cell body environment. What is the location and function of Satellite cells? Not yet graded / 3 pts Question 11 15/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 16/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 Your Answer: Afterpolarization. During afterpolaraization, voltage drops below -70mV and then returns to -70mV when the resting state begins again. 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. 17/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 At rest, a neuron plasma membrane is: Correct! -70 mV 3 / 3 pts Question 14 20/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 True or false: A sensory neuron is signaling the body of a light touch. This means that the strength of the action potential is weaker than usual. Explain your reasoning. Not yet graded / 4 pts Question 16 21/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 Your Answer: False. The intensity of a sensation is determined by the number of neurons stimulated. An action potential is always " all or nothing". False There is no variation in the strength of action potentials. (It is an all-or-nothing response). There is variation in the number and frequency of neurons firing. 22/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 Correct! The NMJ does not have a synapse. The NMJ terminates on a presynaptic motor neuron. The NMJ terminates on a muscle fiber. The NMJ terminates on neurons within the brain and spinal cord. Which of the following statements is true concerning the neuromuscular junction? 2.5 / 2.5 pts Question 17 How is a message sent from one neuron to another? Your Answer: Not yet graded / 2.5 pts Question 18 25/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 Correct! False True True or False: Reflexes occur slower than a conscious decision to move from the brain. 3 / 3 pts Question 21 (only one direction in the same neuron) False 26/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 sensory (afferent) Your Answer: sensory Fill in the blank: In a reflex, the neuron conducts nerve impulses along a pathway towards the central nervous system. Not yet graded / 3 pts Question 22 This part of a reflex is inside the CNS, made up of one or more synapses. Not yet graded / 4 pts Question 23 27/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 Correct! Pulling a hand away from a hot flame is not a reflex; it is entirely voluntary. Reflexes cannot be tested because they are internal. Regulation of blood sugar by hormones is one example of a reflex. Reflexes only involve the brainstem or higher levels of processing. Which of the following statements is true about reflexes? 3 / 3 pts Question 24 Your Answer: A reflex arc Integration center 30/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 the nervous pathway of the reflex he is testing. Include any sensory organs involved and the action of the reflex. Your Answer: The sensory neuron detects the tap on the patellar tendon, then sends signal through the ganglion in the dorsal root to the spinal cord. Then the sensory neruon synapses in the gray matter of the spinal cord onto a motor neuron in the anterior horn. The motor neuron sends signal through the ventral root and synapses back on the patellar tendon. 31/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 Question 28 Not yet graded / 10 pts Answer the following essay questions: Multiple Sclerosis is an autoimmune disease which attacks the myelin sheath of the nerve axon. Patients with this disease may experience difficulty using the muscles of their arms and legs. Explain why this would occur. Your Answer: The myelin sheath insulates the nerve fiber around the axon which Stretch reflex: Stretch on patellar tendon (tapping patellar tendon) Muscle spindle detects stretch Afferent (sensory) neuron through DRG Spinal cord Synapses directly on a motor neuron (efferent) *No interneuron* Action: To muscle fiber to contract quadriceps (kicking foot) 32/16 BIOD 152 AP2 Module 1 Exam Study Guide Latest Updated Comprehensive Study Guide Version 2024/2025 increses the speed of nerve impulses. Patients with multiple sclerosis would experience difficulty using their muscles because the nerve impulse transmission would struggle to jump the gaps in the myelin sheath. Myelin increases nerve conduction speed and protects the nerve. If the myelin is damaged, the conduction speed would be slower than normal, and the nerve axon itself would be vulnerable to permanent damage without the myelin present for protection.