ASU BIO 201 Exam
(2025-2026)
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, 3 basic parts of the neuron cell body, dendrites, axon
3 different types of neurons multipolar, bipolar, pseudounipolar
endoneurium dense irregular connective tissue that surrounds each nerve fiber
perineurium irregular connective tissue that surrounds each fascicle
epineurium delicate irregular connective tissue that surrounds the entire nerve
astrocytes blood brain barrier, star shaped cell
microglia Act as phagocytes, eating damaged cells and bacteria, act as the brains immune
system
oligodentrocyte produce myelin in the central nervous system
Schwann cells produce myelin in the peripheral nervous system
Ependymal cells produce cerebrospinal fluid
excitability ability to respond to stimuli
conductivity the ability of the cell to carry the excitation response along the length of the nerve
cell axon
threshold When the depolarization reaches a point that is irreversible
the main cation in the nerve cell potassium
The extracellular compartment has a relatively high 1. sodium (Na+) 2. potassium (K+)
concentration of ( 1. ) and low concentration of ( 2. )
(2025-2026)
Question and Answers
Expert Verified
(With A+ Grades Guarantee)
, 3 basic parts of the neuron cell body, dendrites, axon
3 different types of neurons multipolar, bipolar, pseudounipolar
endoneurium dense irregular connective tissue that surrounds each nerve fiber
perineurium irregular connective tissue that surrounds each fascicle
epineurium delicate irregular connective tissue that surrounds the entire nerve
astrocytes blood brain barrier, star shaped cell
microglia Act as phagocytes, eating damaged cells and bacteria, act as the brains immune
system
oligodentrocyte produce myelin in the central nervous system
Schwann cells produce myelin in the peripheral nervous system
Ependymal cells produce cerebrospinal fluid
excitability ability to respond to stimuli
conductivity the ability of the cell to carry the excitation response along the length of the nerve
cell axon
threshold When the depolarization reaches a point that is irreversible
the main cation in the nerve cell potassium
The extracellular compartment has a relatively high 1. sodium (Na+) 2. potassium (K+)
concentration of ( 1. ) and low concentration of ( 2. )
