A&P LECTURE FINAL EXAM
QUESTIONS WITH ANSWERS
2025
4 types of action potential
resting potential, depolarization, repolarization, return to resting
potential
during action potential, term for sodium (Na+) IN
depolarization
,during action potential, term for potassium (K+) OUT
repolarization
in regards to action potential, the term for when the charge on the
membrane may move LOWER than -70mv for a short time
hyperpolarization
at what point in action potential is threshold reached
-55mv
term for a brief time on a membrane following the passage of an action
potential when the membrane may be unresponsive to an ordinary
stimulus
refractory period
absolute or relative refractory period?
no new stimulus (no matter how strong) can cause another action
potential
absolute refractory period
absolute or relative refractory period?
if the new stimulus is strong enough (stronger than normal) it may
cause an action potential
relative refractory period
which stage of mitosis
,"APPEARANCE"
chromosomes become visible, nuclear envelop dissolves, spindle forms
prophase (1st phase of mitosis)
which stage of mitosis
"MIDDLE"
chromosomes line up in the middle of the cell
metaphase (2nd phase of mitosis)
which stage of mitosis
"AWAY"
chromosomes begin to crawl down the spindles and separate to
opposite poles of the spindle, cleavage furrow begins to form
anaphase (3rd phase of mitosis)
, which stage of mitosis
"CYTOKINESIS"
final phase of mitosis - chromosomes move to opposite ends of the cell,
cytoplasm divides, two nuclei are formed
telophase (4th/final phase of mitosis)
four tissue types
epithelial, connective, muscle, nervous
which hormone?
aids in fluid retention, DECREASES urine output (concentrates urine)
ADH
OXY target organ
uterus/breast
which hormone?
stimulates labor contractions MILK LETDOWN in breasts (following
delivery)
OXY
also referred to as the "master" gland
pituitary gland
QUESTIONS WITH ANSWERS
2025
4 types of action potential
resting potential, depolarization, repolarization, return to resting
potential
during action potential, term for sodium (Na+) IN
depolarization
,during action potential, term for potassium (K+) OUT
repolarization
in regards to action potential, the term for when the charge on the
membrane may move LOWER than -70mv for a short time
hyperpolarization
at what point in action potential is threshold reached
-55mv
term for a brief time on a membrane following the passage of an action
potential when the membrane may be unresponsive to an ordinary
stimulus
refractory period
absolute or relative refractory period?
no new stimulus (no matter how strong) can cause another action
potential
absolute refractory period
absolute or relative refractory period?
if the new stimulus is strong enough (stronger than normal) it may
cause an action potential
relative refractory period
which stage of mitosis
,"APPEARANCE"
chromosomes become visible, nuclear envelop dissolves, spindle forms
prophase (1st phase of mitosis)
which stage of mitosis
"MIDDLE"
chromosomes line up in the middle of the cell
metaphase (2nd phase of mitosis)
which stage of mitosis
"AWAY"
chromosomes begin to crawl down the spindles and separate to
opposite poles of the spindle, cleavage furrow begins to form
anaphase (3rd phase of mitosis)
, which stage of mitosis
"CYTOKINESIS"
final phase of mitosis - chromosomes move to opposite ends of the cell,
cytoplasm divides, two nuclei are formed
telophase (4th/final phase of mitosis)
four tissue types
epithelial, connective, muscle, nervous
which hormone?
aids in fluid retention, DECREASES urine output (concentrates urine)
ADH
OXY target organ
uterus/breast
which hormone?
stimulates labor contractions MILK LETDOWN in breasts (following
delivery)
OXY
also referred to as the "master" gland
pituitary gland
