CBNS 121 Final 2025 Actual exam (Testing Real
Exam Questions)and verified Answers ( 100%
accurate) GET IT RIGHT!!
Save
Terms in this set (60)
What is the function of the it conducts signals and forms synapses with targets
axon?
What is the function of the receives information from other neurons
dendrite?
What is the pre-neuron neurite
called?
What happens when you it allows ONE dendrite to become a new axon
cut an axon?
What are two things that Environmental cues
help the axon find the guidepost cells
correct target?
What are the two long netrins and semaphorins
range cues mentioned in
class?
What are the two short cadherins and ephrins
range cues mentioned in
class?
What is the growth cone? the leading edge of the axon
, neurons are overgenerated during development and
Why do neurons die? so programmed cell death acts as a control over
neuronal number
remove non functioning cells
remove cells that with inappropriate connections
What are some of the systems matching
reasons why a neuron may remove guidance cues
die? remove transiently important cells
remove harmful cells
evolutionary change
What are the two types of necrosis
neuronal death? programmed cell death
Why does necrosis occur? the cell has become injured
condensation of nuclear material that occurs during
pyknosis
necrosis
What type of cell death necrosis:
occurs during a stroke? hemorrhagic and ischemic
the NMDA and AMPA receptors are overactivated
Excitotoxicity (why too
and this leads to too much glutamate, causing the cell
much glutamate is bad)
to die
a cell is engulfed to make an autophagasome. this
Autophagy autophagasome then goes on to fuse with the
lysosome, destroyed the cellular contents
What are some no nucleus, cytoplasm gets more electron dense,
characteristics of a cell mitochondria dense and clustered, accumulation of
dying by autophagy? vacuoles
1) condensation of nuclear material (pyknosis)
What is the defined 2) plasma membrane "blebs", creating small fragments
process by which 3) cell fragments are eaten by nearby phagocytes
apoptosis occurs? 4) chromosomes get cleaved into nucleosome sized
fragments
Exam Questions)and verified Answers ( 100%
accurate) GET IT RIGHT!!
Save
Terms in this set (60)
What is the function of the it conducts signals and forms synapses with targets
axon?
What is the function of the receives information from other neurons
dendrite?
What is the pre-neuron neurite
called?
What happens when you it allows ONE dendrite to become a new axon
cut an axon?
What are two things that Environmental cues
help the axon find the guidepost cells
correct target?
What are the two long netrins and semaphorins
range cues mentioned in
class?
What are the two short cadherins and ephrins
range cues mentioned in
class?
What is the growth cone? the leading edge of the axon
, neurons are overgenerated during development and
Why do neurons die? so programmed cell death acts as a control over
neuronal number
remove non functioning cells
remove cells that with inappropriate connections
What are some of the systems matching
reasons why a neuron may remove guidance cues
die? remove transiently important cells
remove harmful cells
evolutionary change
What are the two types of necrosis
neuronal death? programmed cell death
Why does necrosis occur? the cell has become injured
condensation of nuclear material that occurs during
pyknosis
necrosis
What type of cell death necrosis:
occurs during a stroke? hemorrhagic and ischemic
the NMDA and AMPA receptors are overactivated
Excitotoxicity (why too
and this leads to too much glutamate, causing the cell
much glutamate is bad)
to die
a cell is engulfed to make an autophagasome. this
Autophagy autophagasome then goes on to fuse with the
lysosome, destroyed the cellular contents
What are some no nucleus, cytoplasm gets more electron dense,
characteristics of a cell mitochondria dense and clustered, accumulation of
dying by autophagy? vacuoles
1) condensation of nuclear material (pyknosis)
What is the defined 2) plasma membrane "blebs", creating small fragments
process by which 3) cell fragments are eaten by nearby phagocytes
apoptosis occurs? 4) chromosomes get cleaved into nucleosome sized
fragments
