1|Page
BIO 669 EXAM 1 AND STUDYGUIDE LATEST
2026/2027 ACTUAL EXAM WITH COMPLETE VERIFIED
QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+|
|QUICK PASS!!!
Ephedra is a mimetic, meaning it has sympathetic nervous
system actiating effects. As such, it may be assumed to
have all of the followin gside effects except. - ANSWER-
diarrhea and abdominal cramping.
The ____ division of the autonomic nervous system helps
conserve energy and the body's resources (rest) and uses
______ as its neurotransmitters - ANSWER-
parasympathetic; acetylcholine
Saltatory conduction - ANSWER-occurs only at the nodes
of ranvier
,2|Page
Graded potentials are all of the following except -
ANSWER-Impulses which travel without diminishing over
distance
Calcium has an equilibrium potential of 123mv this means
that under normal resting potiential if Ca++ became more
permeable the membrane potential would - ANSWER-
become more positive until the inside of the cell became
positive
The basal ganglia (cerebral nuclei) are most involved in -
ANSWER-inhibiting unwanted movement (coordinating
movement)
The parasympathetic nervous system is associated with
which of the following - ANSWER-ganglia that are lose to
the target organ
,3|Page
The receptive (incoming signal) portion of the neuron is
called the - ANSWER-dendrite
When both Na and K are permeable at the same time (as
in opening ion chemicals at the neuromuscular junction
allowing both to cross), what will happen to the membrane
potential? - ANSWER-the cell membrane depolarizes
Makeing the inside of the cell membrane more negative
relative to the outside of the membrane would be
considered - ANSWER-hyperpolaraization (repolarization)
Damage to Broca's area is most likely to cause -
ANSWER-Inability/difficulty in forming words (expressive
aphasia)
The reticular formation is responsible for - ANSWER-
Wakefulness and vital reflexes
, 4|Page
Sympathetic system stimulation causes all of the follwing
except - ANSWER-increasing vasodilation of vascular
smooth muscle
Demyelinating diseases such as MS and Guillain barre
syndrome may not initially damage the axon but can still
result in symptoms and dysregulation because the -
ANSWER-the rate of AP transmission, thus the
information is altered
Upon opening, voltage gated Na+ channels will allow ions
to flow until: - ANSWER-the inactivation gates close
Which of the following receptor types does not activate G
protiens (ie dos not use a second messenger system) -
ANSWER-nicotinic
BIO 669 EXAM 1 AND STUDYGUIDE LATEST
2026/2027 ACTUAL EXAM WITH COMPLETE VERIFIED
QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+|
|QUICK PASS!!!
Ephedra is a mimetic, meaning it has sympathetic nervous
system actiating effects. As such, it may be assumed to
have all of the followin gside effects except. - ANSWER-
diarrhea and abdominal cramping.
The ____ division of the autonomic nervous system helps
conserve energy and the body's resources (rest) and uses
______ as its neurotransmitters - ANSWER-
parasympathetic; acetylcholine
Saltatory conduction - ANSWER-occurs only at the nodes
of ranvier
,2|Page
Graded potentials are all of the following except -
ANSWER-Impulses which travel without diminishing over
distance
Calcium has an equilibrium potential of 123mv this means
that under normal resting potiential if Ca++ became more
permeable the membrane potential would - ANSWER-
become more positive until the inside of the cell became
positive
The basal ganglia (cerebral nuclei) are most involved in -
ANSWER-inhibiting unwanted movement (coordinating
movement)
The parasympathetic nervous system is associated with
which of the following - ANSWER-ganglia that are lose to
the target organ
,3|Page
The receptive (incoming signal) portion of the neuron is
called the - ANSWER-dendrite
When both Na and K are permeable at the same time (as
in opening ion chemicals at the neuromuscular junction
allowing both to cross), what will happen to the membrane
potential? - ANSWER-the cell membrane depolarizes
Makeing the inside of the cell membrane more negative
relative to the outside of the membrane would be
considered - ANSWER-hyperpolaraization (repolarization)
Damage to Broca's area is most likely to cause -
ANSWER-Inability/difficulty in forming words (expressive
aphasia)
The reticular formation is responsible for - ANSWER-
Wakefulness and vital reflexes
, 4|Page
Sympathetic system stimulation causes all of the follwing
except - ANSWER-increasing vasodilation of vascular
smooth muscle
Demyelinating diseases such as MS and Guillain barre
syndrome may not initially damage the axon but can still
result in symptoms and dysregulation because the -
ANSWER-the rate of AP transmission, thus the
information is altered
Upon opening, voltage gated Na+ channels will allow ions
to flow until: - ANSWER-the inactivation gates close
Which of the following receptor types does not activate G
protiens (ie dos not use a second messenger system) -
ANSWER-nicotinic
