Myelin - Study guides, Class notes & Summaries

Exam 3: NUR265 / NUR 265 (Latest 2024 / 2025 Update) Advanced Concepts of Medical–Surgical Nursing Exam Review | Complete Guide with Questions and Verified Answers | 100% Correct - Galen Q: What is cholinergic crisis? Answer: too much cholinesterase inhibitor drug Q: What are s/s of cholinergic crisis? Answer: fasciculations hypersalivation sweating bronchospasms increase bronchial secretions bradycardia Q: What is tx for cholinergic crisis? Answer: atropine DO NOT GIVE ANTICHOLINESTERASE Q: W...

Why is myelin important in the nervous system? A. It allows signals to travel faster along axons because depolarization occurs only at myelinated locations. B. It allows signals to travel faster along axons because depolarization occurs only at nonmyelinated locations. C. It bundles the dendrites of adjacent neurons together. D. It increases capacitance across the cell membrane, which helps electrical signals to leave the axons. E. It traps neurotransmitters, increasing their concentratio...

Exam 4: NUR242/ NUR 242 (Latest 2023/ 2024) Medical-Surgical Nursing Exam | Questions and Verified Answers| 100% Correct| Grade A- Galen Q: During an interview with a patient with a diagnosis of Parkinson disease (PD), which of the following speech patterns will the healthcare provider anticipate? A. Bubbly and spirited B. Clear and rhythmic C. Pressured and hurried D. Slow, slurred, and monotone Answer: D. Slow, slurred, and monotone Q: Select all the TRUE statements about...

What are the different types of nervous tissue? ️ Neurons and Glia What makes up the Nervous System? ️ 1) The central nervous system 2) The peripheral nervous system What makes up the CNS? ️ The brain and the spinal cord What makes up the PNS? ️ The nerves that connect the CNS with the rest of the body What are the 4 types of Glia cells? ️ Astrocytes Microglia Ologodendrocytes Schwann cells What is an Astrocytes ️ -most abundant of the glia cells -makes up the blood brain ...

1. Which part of DNA is transcribed into messenger RNA? a. Exon b. Intron c. Promoter d. Non-coding DNA e. Regulatory DNA Answer: a Textbook Reference: Genetics and Genomics Bloom’s Level: 2. Understanding 2. Genomics is the analysis of a. coding DNA sequences for a species. b. regulatory DNA sequences for an individual organism and a species. c. coding and regulatory DNA sequences for a species. d. coding and regulatory DNA sequences for an individual organism. e. coding and reg...

Exam 2: PRN1032/ PRN 1032 Client-Centered Care I Exam Review (2023/2024 Newly Updated) | Questions and Verified Answers| Rasmussen 1. riboflavin rich foods ~ Answer: Cereal, almonds, beef liver, chicken liver, soybeans, milk, yogurt 2. What is a pro-vitamin? ~ Answer: A substance that an organism can transform into a vitamin 3. What is a vitamin? ~ Answer: A compound which an organism requires, but is unable to synthesize in sufficient quantities, so must obta...

GALEN A&P NU-110 EXAM 4 LATEST QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025 VERIFIED GRADED A+ The Central Nervous System (CNS) Includes the brain and the spinal cord The Peripheral Nervous System (PNS) includes the nerves that connect the Central Nervous system with the rest of the body What are the 2 parts of nervous tissue Glia Cells, and neurons. Glia cell are support cells of the brain astrocytes, microglia, oligodendrocytes Astrocytes makes the blood brain barrier. Connects to ...

Oligodendrocytes - Form myelin sheath in CNS Microglia - Act as phagocytes to remove pathogens, impurities, and dead neurons Ependymal - A type of CNS supporting cell; lines the central cavities of the brain and spinal cord; synthesize CSF and promote its movement cervical nodes - located in the neck in deep and superficial groups, drain parts of head and neck axillary nodes - located in armpits what are the parts of the lymphatic system? - tonsils, thymus, spleen, peyer patch, small intes...

What is encephalitis? - inflammation or infection of the brain What causes encephalitis? - West Nile Virus Herpes What are the s/s of encephalitis? - High fever, N/V, stiff neck Flu like symptoms change in LOC photophobia pupil changes (dilate & less responsive to light) What is used to dx encephalitis? - lumbar puncture EEG CT (looks for mass) What are N/I for encephalitis? - Neuro checks Monitor for s/s of ICP Suction only resp compromised HOB 30-45 Decrease stimuli What is the...

The brain and spinal cord - Answer-Central Nervous System Links the CNS with the body's sensory receptors, muscles, and glands - Answer-Peripheral Nervous System Enables voluntary control of muscles - Answer-Somatic Nervous System Controls the glands and muscles of internal organs. Functions non-conciously - Answer-Automatic Nervous System Part of the automatic nervous system. It arouses and expends energy - Answer-Sympathetic Nervous System Part of the automatic nervous system. It calm...