BIOL 2113 QUESTIONS AND ASWERS LATEST UPDATE
100% CORRECT A+ GRADED. Buy Quality Materials!
encephalization
increase in complexity or relative size of brain, involving a shift of function from
noncortical parts of the brain to the cortex
what determines inteligence?
size of brain and grooves
oranogenesis
production or development of organs
neurulation
transformation of neural plate into neural tube-becomes CNS structures
1st step of neurulation
neural plate forms from surface of ectoderm, then invaginates, forming neural groove
flanked by neural folds
2nd step of neurulation
neural fold cells migrate to form the neural crest, which will form much of PNS
3rd step of neurulation
neural groove becomes neural tube, which will form CNS structure
cell body of neuron (soma)
dendrites
receptive regions
axon hillock
the cone-shaped area on the cell body from which the axon originates
myelin sheath
covers the axon of some neurons and helps speed neural impulses
axon
impulse generating and conducting region
axon terminals
secretory region
terminal branches
i
myelin sheath gap
action potential jumps between these gaps=faster
bipolar sensory neuron
a neuron with 2 processes-one axon and one dendrite on opposite side attached to its
soma
rare sensory neurons
found in special sense organs: retina, olfactory mucosa
unipolar sensory neuron
aka pseudounipolar bc originates from bipolar neuron
1 process extends from soma to form central and peripheral process which together=an
axon
100% CORRECT A+ GRADED. Buy Quality Materials!
encephalization
increase in complexity or relative size of brain, involving a shift of function from
noncortical parts of the brain to the cortex
what determines inteligence?
size of brain and grooves
oranogenesis
production or development of organs
neurulation
transformation of neural plate into neural tube-becomes CNS structures
1st step of neurulation
neural plate forms from surface of ectoderm, then invaginates, forming neural groove
flanked by neural folds
2nd step of neurulation
neural fold cells migrate to form the neural crest, which will form much of PNS
3rd step of neurulation
neural groove becomes neural tube, which will form CNS structure
cell body of neuron (soma)
dendrites
receptive regions
axon hillock
the cone-shaped area on the cell body from which the axon originates
myelin sheath
covers the axon of some neurons and helps speed neural impulses
axon
impulse generating and conducting region
axon terminals
secretory region
terminal branches
i
myelin sheath gap
action potential jumps between these gaps=faster
bipolar sensory neuron
a neuron with 2 processes-one axon and one dendrite on opposite side attached to its
soma
rare sensory neurons
found in special sense organs: retina, olfactory mucosa
unipolar sensory neuron
aka pseudounipolar bc originates from bipolar neuron
1 process extends from soma to form central and peripheral process which together=an
axon
