BIO 370 FINAL - PRE-LABS
QUESTIONS N ANSWERS RATED A+
STATS/GRAPHING: How do you summarize relevant results? - correct answer ✔✔ When
summarizing results its better to give summary stats like AVG +/- STDEV because these stats give
the reader an idea of the distribution of data points in the group.
STATS/GRAPHING: Why should a T-Test be used to determine whether post-test scores are
significantly different from pre-test scores? - correct answer ✔✔ When comparing two groups,
the T-test is appropriate as it assesses whether two groups are significantly different
STATS/GRAPHING: What type of T-Test is the most appropriate for this data? - correct answer
✔✔ paired (type 1 in excel), we can assume the two groups have equal variance because the
test was administered to the country kids before and after they got a lecture. (P. 1-2 IN STATS
AND GRAPHING)
EVOKED AP: How many total giant fiber(s) does the earthworm have? - correct answer ✔✔
Three
EVOKED AP: An advantage of a giant nerve fiber is that it: - correct answer ✔✔ conducts action
potentials faster than a smaller fiber
EVOKED AP: In nerve fibers, what is the term that characterizes the preferred natural direction
of conduction? - correct answer ✔✔ Orthodromic
EVOKED AP: Nerves cannot be antidromically stimulated where the action potential propagates
toward the soma. - correct answer ✔✔ False
, EVOKED AP: In the earthworm, the median and lateral fiber(s) conduct their naturally generated
impulses in what direction(s)? - correct answer ✔✔ Opposite Direction(s)
EVOKED AP: Which giant fiber(s) have a faster conduction velocity? - correct answer ✔✔
Median Fiber(s)
EVOKED AP: Which giant fiber(s) have a higher stimulus threshold? - correct answer ✔✔ Lateral
Fiber(s)
EVOKED AP: What is the preferred natural direction of nerve conduction in the lateral fiber(s)? -
correct answer ✔✔ Tail to Head
EVOKED AP: The relative refractory period - correct answer ✔✔ represents a time during which
a stimulus of greater than normal magnitude may elicit a new action potential
EVOKED AP: Due to the experimental setup, how will the recording appear after an action
potential has occurred? - correct answer ✔✔ Biphasic
REFLEXES: What is the neural pathway of the knee-jerk reflex? - correct answer ✔✔ Receptor,
Afferent Neuron, Integration Center, Efferent Neuron, Effector
REFLEXES: What is the sensory structure of the knee-jerk reflex arc? - correct answer ✔✔
Muscle Spindle Fiber
REFLEXES: When the activities of a muscle group around a skeletal joint are coordinated so that
when one muscle contracting causes the other to passively stretch, but this DOES NOT result in
activation of the stretch reflex this is called ___________ of the muscle group. However, when a
stretch reflex is activated in a single muscle and the lengths of the muscle spindle and the
muscle its housed in are maintained at the same length, this is called ___________. - correct
answer ✔✔ Reciprocal innervation, coactivation
QUESTIONS N ANSWERS RATED A+
STATS/GRAPHING: How do you summarize relevant results? - correct answer ✔✔ When
summarizing results its better to give summary stats like AVG +/- STDEV because these stats give
the reader an idea of the distribution of data points in the group.
STATS/GRAPHING: Why should a T-Test be used to determine whether post-test scores are
significantly different from pre-test scores? - correct answer ✔✔ When comparing two groups,
the T-test is appropriate as it assesses whether two groups are significantly different
STATS/GRAPHING: What type of T-Test is the most appropriate for this data? - correct answer
✔✔ paired (type 1 in excel), we can assume the two groups have equal variance because the
test was administered to the country kids before and after they got a lecture. (P. 1-2 IN STATS
AND GRAPHING)
EVOKED AP: How many total giant fiber(s) does the earthworm have? - correct answer ✔✔
Three
EVOKED AP: An advantage of a giant nerve fiber is that it: - correct answer ✔✔ conducts action
potentials faster than a smaller fiber
EVOKED AP: In nerve fibers, what is the term that characterizes the preferred natural direction
of conduction? - correct answer ✔✔ Orthodromic
EVOKED AP: Nerves cannot be antidromically stimulated where the action potential propagates
toward the soma. - correct answer ✔✔ False
, EVOKED AP: In the earthworm, the median and lateral fiber(s) conduct their naturally generated
impulses in what direction(s)? - correct answer ✔✔ Opposite Direction(s)
EVOKED AP: Which giant fiber(s) have a faster conduction velocity? - correct answer ✔✔
Median Fiber(s)
EVOKED AP: Which giant fiber(s) have a higher stimulus threshold? - correct answer ✔✔ Lateral
Fiber(s)
EVOKED AP: What is the preferred natural direction of nerve conduction in the lateral fiber(s)? -
correct answer ✔✔ Tail to Head
EVOKED AP: The relative refractory period - correct answer ✔✔ represents a time during which
a stimulus of greater than normal magnitude may elicit a new action potential
EVOKED AP: Due to the experimental setup, how will the recording appear after an action
potential has occurred? - correct answer ✔✔ Biphasic
REFLEXES: What is the neural pathway of the knee-jerk reflex? - correct answer ✔✔ Receptor,
Afferent Neuron, Integration Center, Efferent Neuron, Effector
REFLEXES: What is the sensory structure of the knee-jerk reflex arc? - correct answer ✔✔
Muscle Spindle Fiber
REFLEXES: When the activities of a muscle group around a skeletal joint are coordinated so that
when one muscle contracting causes the other to passively stretch, but this DOES NOT result in
activation of the stretch reflex this is called ___________ of the muscle group. However, when a
stretch reflex is activated in a single muscle and the lengths of the muscle spindle and the
muscle its housed in are maintained at the same length, this is called ___________. - correct
answer ✔✔ Reciprocal innervation, coactivation
