What do astrocytes do - Study guides, Class notes & Summaries
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PNB 2XB3 Questions and Answers | Latest Update 2024/2025
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Neuroscience 
 ~~> study of the neurons and nervous systems 
how many neurons are in the brain and what is the power of the brain 
 ~~> 100 billion neurons, and it is about 20W 
how large are neurons 
 ~~> 10 microns 
Central Nervous System (CNS) 
 ~~> all the parts within bone (spinal cord, thalamus, brainstem, 
cortex...) 
Peripheral Nervous System (PNS) 
 ~~> not within bone (peripheral nerves) 
brainstem 
 ~~> includes the medulla, midbrain, and the pons 
spine 
2 | P a g ...
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PNS: EXAM 1 REVIEW QUESTIONS AND ANSWERS, GRADED A+[LATEST EXAM UPDATES]
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PNS: EXAM 1 REVIEW QUESTIONS AND ANSWERS, GRADED 
A+ 
what does the nervous system do for the body? - --enables it to react to continuous 
changes in its internal and external environments 
-also controls and integrates the various activities of the body such as circulation and 
respiration 
structurally, the nervous system is divided into what? - -CNS and PNS 
functionally, the nervous system is divided into what? - -somatic nervous system (SNS) 
and autonomic nervous system (ANS) 
what ar...
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PHM 450 Exam 2 Questions And Answers Graded A+.
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PHM 450 Exam 2 Questions And Answers Graded A+. 
 
 
 
 
 
 
 
 
 
Describe .the .nervous .system. .What .types .of .cells .are .present, .and .what .is .the .function .of .each .cell .type? .- .correct .answer. . . . .consists .of .the .CNS .(brain .and .spinal .cord) .and .PNS .(somatic .and .autonomic .nervous .systems); .consists .of .neural .cells .and .glia .cells 
 
what .are .the .types .of .glial .cells .- .correct .answer. . . . .oligodendrocytes, .schwann .cells, .astrocytes 
 
type ....
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Midterm Exam: MN576/ MN 576 (Latest 2023/ 2024) Questions and Verified Answers| Grade A| 100% Correct
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Midterm Exam: MN576/ MN 576 (Latest 2023/ 2024) Questions and Verified Answers| Grade A| 100% Correct 
 
Q: What are some characteristics of HIV 
 
 
Answer: 
•Lentivirus 
•Subgroup of retrovirus 
•Contains enzyme reverse transcriptase 
•Single stranded 
•Positive sense 
•Enveloped 
•RNA virus 
•Defined as a disease in 1981 
 
 
 
Q: What are some differences between HIV 1 and HIV 2 
 
 
Answer: 
1. HIV 1 Group M 
•Dominant form 
•Responsible 99% for the global HIV epidemic 
...
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Biology 235 UBCO midterm 2 Exam Questions With 100% Correct Answers
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Biology 235 UBCO midterm 2 Exam Questions With 100% Correct Answers 
what does the pyramidal tract control? 
learned motor actions 
 
 
The pyramidal tract works with the ______ to produce smooth, co-ordinated movements. Both are contralateral projections 
extrapyramidal tracts 
 
 
The CNS develops a _______________. when neural folds fuse along the dorsal midline forming a hollow tube 
embryonic neural tube 
 
 
what is anencephaly? 
failure to fuse at the rostral end of the tube. this leads t...
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BIOL 235 MIDTERM 2 PRACTICE TEST EXAM A+ GRADED 2023-2024
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BIOL 235 MIDTERM 2 PRACTICE TEST 
EXAM A+ GRADED 
between the origin and insertion which is usually located proximally in limbs ? - CORRECT ANSWEROrigin 
What happens during REVERSE MUSCLE ACTION? - CORRECT ANSWER-specific movements of the body 
the actions are reversed THEREFOR the positions of the origin and insertion of a muscle are switched 
What is a mechanical advantage using the example of a lever? - CORRECT ANSWER-if the load is closer 
to the fulcrum and the effort is farther from ...
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GALEN A&P NU-110 EXAM 4 LATEST QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025 VERIFIED GRADED A+
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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 ...
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SPLH 620 Exam 1 Questions with Complete Solutions
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SPLH 620 Exam 1 
Questions with 
Complete Solutions 
 
What kind of jobs does the nervous system perform? - Answer-1. Controls body 
functions 
2. Transmits information 
3. Receives sensory input from internal and external environments 
What are the two approaches to the mind-body problem? - Answer-1. Dualism 
-Mind and body are separate 
»mind is a uniquely human attribute that is 
not constrained by physical laws 
2. Monism 
-Mind is a property of a physical nervous system 
What are the major...
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Module 1 quiz (nerve cells and nerve impulses) Exam 100% Accurate!
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Small, charged molecules can cross the cell membrane through ____. 
mitochondria 
diffusion 
ribosomes 
protein channels - ANSWERProtein channels 
 
What do neurons have that other cells do not? 
a plasma membrane 
large, branching extensions 
an endoplasmic reticulum 
protein channels - ANSWERlarge, branching extensions 
 
What type of glial cells myelinate axons in the brain and spinal cord? 
astrocytes 
oligodendrocytes 
radial glia 
Schwann cells - ANSWERoligodendrocytes 
 
As a general rule...
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BIOL 235 Midterm 2 Questions And Answers Rated A+ New Update Assured Satisfaction
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between the origin and insertion which is usually located proximally in limbs ? - Answer-Origin 
What happens during REVERSE MUSCLE ACTION? - Answer-specific movements of the body the actions 
are reversed THEREFOR the positions of the origin and insertion of a muscle are switched 
What is a mechanical advantage using the example of a lever? - Answer-if the load is closer to the 
fulcrum and the effort is farther from the fulcrum only a small about of effort is needed to move the load 
Bones ser...
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