Zoo 253 Exam 3 Newest 2026/2027 Questions
and Correct Detailed Answers Already Graded A+
Oxytocin stimulates contraction of myoepithelial cells of the mammary acini -
CORRECT ANSWER-True
Which hormone acts primarily on the uterus? - CORRECT ANSWER-
progesterone
_____ are found in both male and female external genitilia, but the ______ is/are
only found in the female - CORRECT ANSWER-corpora cavernosa, vestibular
bulbs
true or false:
most primary oocytes undergo atresia during climacteric - CORRECT ANSWER-
FALSE
What provides most of the natural lubrication during female sexual excitement? -
CORRECT ANSWER-great vestibular glands
,contraceptive pills mimic the _________ feedback effect of ___________ -
CORRECT ANSWER-negative; estrogens and progesterone
What is the longest stage of labor? - CORRECT ANSWER-the dilation stage
True or False:
During implantation, the embryoblast undergoes gastrulation. - CORRECT
ANSWER-True
As it implants, the conceptus is nourished by means of __________. - CORRECT
ANSWER-trophoblastic nutrition
Older people may require lower drug doses than younger people because -
CORRECT ANSWER-they have lower rates of renal clearance
Which of the following is not a known cause of congential anomalies?
- infectous disease in the mother during pregnancy
- a genetic disorder
- exsposure to teratogens during pregnancy
- smoking during lactation
- smoking during pregnancy - CORRECT ANSWER-smoking during lactation
, Which of the following is not a known benefit of regular exercise? - CORRECT
ANSWER-prolonged life expectancy
In the slow block to polyspermy, sperm penetration releases an inflow of
__________, which in turn stimulates the __________. - CORRECT ANSWER-
Ca2+, cortical reaction
Which of the following is not a reason muscular weakness tends to develop in old
age? - CORRECT ANSWER-the myocytes of aged muscle no longer synthesize
myosin
Which of the following organ systems shows the greatest anatomical change in
the transitional period after birth? - CORRECT ANSWER-circulatory system
The first body cavity is called the __________. - CORRECT ANSWER-coelom
In the fast block to polyspermy, binding of sperm opens up __________ channels,
which depolarizes the egg membrane and __________. - CORRECT ANSWER-
Na+; prevents the entrance of any sperm
and Correct Detailed Answers Already Graded A+
Oxytocin stimulates contraction of myoepithelial cells of the mammary acini -
CORRECT ANSWER-True
Which hormone acts primarily on the uterus? - CORRECT ANSWER-
progesterone
_____ are found in both male and female external genitilia, but the ______ is/are
only found in the female - CORRECT ANSWER-corpora cavernosa, vestibular
bulbs
true or false:
most primary oocytes undergo atresia during climacteric - CORRECT ANSWER-
FALSE
What provides most of the natural lubrication during female sexual excitement? -
CORRECT ANSWER-great vestibular glands
,contraceptive pills mimic the _________ feedback effect of ___________ -
CORRECT ANSWER-negative; estrogens and progesterone
What is the longest stage of labor? - CORRECT ANSWER-the dilation stage
True or False:
During implantation, the embryoblast undergoes gastrulation. - CORRECT
ANSWER-True
As it implants, the conceptus is nourished by means of __________. - CORRECT
ANSWER-trophoblastic nutrition
Older people may require lower drug doses than younger people because -
CORRECT ANSWER-they have lower rates of renal clearance
Which of the following is not a known cause of congential anomalies?
- infectous disease in the mother during pregnancy
- a genetic disorder
- exsposure to teratogens during pregnancy
- smoking during lactation
- smoking during pregnancy - CORRECT ANSWER-smoking during lactation
, Which of the following is not a known benefit of regular exercise? - CORRECT
ANSWER-prolonged life expectancy
In the slow block to polyspermy, sperm penetration releases an inflow of
__________, which in turn stimulates the __________. - CORRECT ANSWER-
Ca2+, cortical reaction
Which of the following is not a reason muscular weakness tends to develop in old
age? - CORRECT ANSWER-the myocytes of aged muscle no longer synthesize
myosin
Which of the following organ systems shows the greatest anatomical change in
the transitional period after birth? - CORRECT ANSWER-circulatory system
The first body cavity is called the __________. - CORRECT ANSWER-coelom
In the fast block to polyspermy, binding of sperm opens up __________ channels,
which depolarizes the egg membrane and __________. - CORRECT ANSWER-
Na+; prevents the entrance of any sperm
