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2024 BIOS252 Biology Comprehension Exam With Answers (133 Solved Questions)

Build confidence with 2024 BIOS252 Biology Comprehension Exam With Answers, filled with real exam questions that help you refine your test-taking strategy.

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BIOS 252 COMPREHENSION EXAM 2024 4
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2 types of summation - *temporal (wave) summation: one presynaptic neuron to one postsynaptic
membrane
*spacial summation: multiple presynaptic neurons to one postsynaptic membrane
describe ligand gated channels - responds to chemical stimuli that bond to receptors
describe voltage gated channels - respond to a direct change in membrane potential
describe mechanically gated channels - responds to mechanical change
describe hyperpolarization - membrane potential makes inside of cell more negative than resting
potential
6 glial cells found in NS - *satellite
*schwann
*oligodendrocytes
*microglial
*astrocytes
*ependymal
function of the satellite cells - provides support for the nerves in the PNS
function of the schwann cells - produce myelin in PNS
function of oligodendrocytes - produce myelin in CNS
function of the microglial cells - work as macrophages in CNS
function of the astrocytes - *creates blood brain barrier
*most abundant cell in the CNS
function of the ependymal cells - produce cerebral spinal fluid
describe the reticular activating system - bundle of nerves at brain stem that filters out
unnecessary info so the imp. info gets through
identify the lesser tubercle of the humerus -
identify the lateral epicondyle of the humerus –
what are the 9 abdominopelvic regions? - *left hypochondriac
*epigastric
*right hypochondriac
*left lumbar
*umbilical
*right lumbar
*left inguinal (iliac)
*hypogastric
*right inguinal (iliac)
what are the 11 organ systems - *nervous
*respiratory
*endocrine
*digestive
*muscular
*reproductive
*circulatory
*integumentary
*skeletal
*lymphatic
*urinary
function of nervous system - transmits signals from the brain to the rest of the body
function of respiratory system - brings oxygen into the body while removing carbon dioxide

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