BIO 348 EXAM 2 QUESTIONS WITH
COMPLETE SOLUTIONS.
Actin - correct answer - -Thin filaments are
composed primarily of this contractile protein.
-tropnin and tropomyosin are also found on
the thin filament
Action potentials that occur in the axon of a
neuron operate according to an "all-or-none"
principle. - correct answer - True
Anterior Median Fissure - correct answer - A
deep groove on the anterior side of the spinal
cord
Aponeurosis - correct answer - Extension
from a muscle that forms a broad flat sheet.
Axon - correct answer - The single, long
extension from the cell body that conducts
impulses away from the cell body toward
,other neurons or an effector site on a muscle
or gland.
axon hillock - correct answer - The initial
segment of the axon where it is attached to
the cell body and where an action potential
begins.
Axon terminals - correct answer - Highly
branched fine processes located at the end of
an axon
Bundles of neurons (tracts) that ascend
(travel up to the brain) in the white matter of
the spinal cord transmit ____________________
information to the brain. - correct answer -
Sensory
Cell body - correct answer - The central part
of the neuron that contains the nucleus and
necessary organelles.
, Characteristics of excitable tissues - correct
answer - respond to changes in electrical
potential
muscle, nervous tissue
voluntary and involuntary
signal transduction
Conus Medullaris - correct answer - Tapered
portion at the bottom of the spinal cord.
Dendrites - correct answer - Short, highly
branched extensions that receive sensory info
from receptors or other neurons and conduct
them toward the cell body.
COMPLETE SOLUTIONS.
Actin - correct answer - -Thin filaments are
composed primarily of this contractile protein.
-tropnin and tropomyosin are also found on
the thin filament
Action potentials that occur in the axon of a
neuron operate according to an "all-or-none"
principle. - correct answer - True
Anterior Median Fissure - correct answer - A
deep groove on the anterior side of the spinal
cord
Aponeurosis - correct answer - Extension
from a muscle that forms a broad flat sheet.
Axon - correct answer - The single, long
extension from the cell body that conducts
impulses away from the cell body toward
,other neurons or an effector site on a muscle
or gland.
axon hillock - correct answer - The initial
segment of the axon where it is attached to
the cell body and where an action potential
begins.
Axon terminals - correct answer - Highly
branched fine processes located at the end of
an axon
Bundles of neurons (tracts) that ascend
(travel up to the brain) in the white matter of
the spinal cord transmit ____________________
information to the brain. - correct answer -
Sensory
Cell body - correct answer - The central part
of the neuron that contains the nucleus and
necessary organelles.
, Characteristics of excitable tissues - correct
answer - respond to changes in electrical
potential
muscle, nervous tissue
voluntary and involuntary
signal transduction
Conus Medullaris - correct answer - Tapered
portion at the bottom of the spinal cord.
Dendrites - correct answer - Short, highly
branched extensions that receive sensory info
from receptors or other neurons and conduct
them toward the cell body.
