What do astrocytes do - Study guides, Class notes & Summaries

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 ...

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...

BIOL 235 Midterm 2 Questions And Answers 100% Verified. between the origin and insertion which is usually located proximally in limbs ? - correct answer. Origin 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 an...

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 ....

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 ...

BIOS 1300 Exam 4 (2023/2024) Already Passed what are the functions of the nervous system sensory integration motion what is the sensory function of the nervous system recognize changes in environment what is the integration function of the nervous system analysis of sensory information what is the motor function of the nervous system signals to effectors what are the two divisions of the nervous system central and peripheral what is the sensory division of the peripheral nervous system soma...

EXAM 10 NSG 1010 PRACTICE QUESTIONS AND ANSWERS What does the CNS contain? - Ans:-Brain and spinal cord What does the PNS contain? - Ans:-12 pairs of cranial nerves and 31 pairs of spinal nerves ANS consists of what? - Ans:-sympathetic and parasympathetic afferent neurons are what? - Ans:-Nerve cells that carry impulses towards the CNS efferent neurons are what? - Ans:-Nerve cells that conduct impulses away from the CNS Astrocytes provide what to the nervous system? - Ans:-provide stuctur...

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...

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...

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...