SOSC 1375 Study Guide - Quiz Guide: Enteric Nervous System, Midbrain, Adrenocorticotropic Hormone
7 May 2018
School
Department
Course
Professor
29
Student: _______________________________________________________________________________________
1
.
The
p
eriod from conce
p
tion until birth is
A.
t
he
p
renatal
p
eriod
.
B.
t
he
g
erminal
p
eriod
.
C.
t
he embryonic period
.
D.
t
he fetal period
.
E. the conce
p
tual
p
eriod
.
2
.
The prenatal period during which the major organ systems form is the
A.
f
etal
p
eriod
.
B. germinal period
.
C. embr
y
onic
p
eriod
.
D.
n
eonatal
p
eriod
.
3
.
What event separates childhood from adolescence
?
A.
p
ubert
y
B. infanc
y
C. formation of
g
erm la
y
ers
D.
b
e
g
innin
g
to wal
k
4
.
Germ la
y
ers form durin
g
the
____
p
eriod while or
g
an s
y
stems mature durin
g
the
____
p
eriod
.
A.
e
mbryonic; feta
l
B.
p
renatal; neonata
l
C.
g
erminal; embr
y
onic
D.
g
erminal; feta
l
E. fetal; germina
l
5
.
The clinical a
g
e of the unborn child is calculated fro
m
A.
o
vulation
.
B. conce
p
tion
.
C.
t
he last menstrual period
.
D.
f
ourteen days after the last menstrual period
.
E. fourteen da
y
s before the last menstrual
p
eriod
.
6
.
Developmental events are calculated fro
m
A.
o
vulation
.
B. conception
.
C.
t
he last menstrual
p
eriod
.
D.
f
ourteen da
y
s after the last menstrual
p
eriod
.
E. fourteen days before the last menstrual period
.
7
.
Fusion of the male and female
p
ronucle
i
A.
r
esults in an oocyte forming
.
B.
r
estores the di
p
loid number of chromosomes
.
C. occurs before ovulation
.
D.
r
esults in a haploid cell forming
.
E. results in a total of 23 chromosomes
.
8
.
Depolarization of the oocyte plasma membrane occurs when the first sperm attaches to the integrin a6b1. This is called the
A. slow block to
p
ol
y
s
p
erm
y.
B. acrosomal reaction
.
C. fast block to polyspermy
.
D.
f
ertilization
.
E. s
p
ermio
g
enesis
.
9
.
Fusion of the male and female
p
ronuclei forms the
A.
b
lastocyst
.
B.
m
orula
.
C. z
yg
ote
.
D.
g
astrula
.
E. trophoblast
.
10
.
If the z
yg
ote s
p
lits into two se
p
arate cells
,
A.
i
dentical twins result
.
B. fraternal twins result
.
C. dizygotic twinning occurs
.
D.
b
oth cells die
.
E.
p
aternal twins result
.
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42
11
.
If a woman ovulates two oocytes and both are fertilized
,
A.
i
dentical twins result
.
B. fraternal twins result
.
C. Siamese twins result
.
D.
m
onoz
yg
otic twinnin
g
occurs
.
E.
p
aternal twins result
.
12
.
An embr
y
onic cell that has the
p
otential to develo
p
into a wide ran
g
e of tissues is called a/a
n
A.
d
ifferentiated cell
.
B.
m
ulti
p
otent cell
.
C.
p
luri
p
otent cell
.
D.
o
mnipotent cell
.
E. totipotent cell
.
13
.
An embryonic cell that contains the potential to give rise to any tissue type is called a/a
n
A.
d
ifferentiated cell
.
B.
m
ulti
p
otent cell
.
C.
p
luripotent cell
.
D.
o
mni
p
otent cell
.
E. toti
p
otent cell
.
14
.
Once the embryonic mass has 12 or more cells, it is called
a
A.
m
orula
.
B. gastrula
.
C.
b
lastula
.
D.
b
lastoc
y
st
.
E. trophoblast
.
15
.
The sin
g
le la
y
er of cells that surrounds the blastocele is the
A.
m
orula
.
B.
g
astrula
.
C.
b
lastocyst
.
D.
t
rophoblast
.
E. inner cell mass
.
16
.
When the embryonic mass of cells develops an internal cavity, the mass of cells is called a(n)
A.
zyg
ote
.
B.
m
orula
.
C.
b
lastocyst
.
D.
e
mbr
y
onic disc
.
E. trophoblast
.
17
.
The inner cell mass of the blastoc
y
st
A.
c
onsists of yol
k
-filled storage cells
.
B. contains cells that will form the embr
y
o
.
C.
r
e
p
resents the future
p
lacenta
.
D.
w
ill form the zona pellucida
.
E. contains cells that are discarded
.
18
.
The placenta and membranes surrounding the embryo develop from the
A.
m
orula
.
B.
b
lastoc
y
st
.
C.
t
rophoblast
.
D.
i
nner cell mass
.
E.
b
lastocele
.
19
.
At the time of implantation, the human embryo is in a stage of development known as the
A.
f
etus
.
B. zygote
.
C.
m
orula
.
D.
b
lastoc
y
st
.
E. egg
.
20
.
The
p
lacenta
p
la
y
s an im
p
ortant role i
n
A.
i
mplantation
.
B. onset of lactation
.
C.
b
eginning of parturition
.
D.
p
rovision of nutrients to the fetus
.
E. insulatin
g
the fetus
.
21
.
The time period between fertilization and implantation is approximatel
y
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42
A. 5 days
.
B. 7 da
y
s
.
C. 10 da
y
s
.
D. 14 days
.
E. 21 days
.
22
.
Which of the following statements about the syncytiotrophoblast is false
?
A.
I
t forms the develo
p
in
g
embr
y
o
.
B. It is com
p
osed of a no
n
-dividin
g
, multinucleated cell
.
C. It is nonantigenic, so that it triggers no immune response
.
D.
I
t invades the maternal tissues that com
p
ose the endometrium of the uterus
.
E. It forms lacunae
.
23
.
The cytotrophoblast
A.
f
orms the chorionic villi
.
B.
r
eplaces the syncytiotrophoblast
.
C.
r
emains throu
g
hout develo
p
ment
.
D.
f
orms branches that
p
rotrude into the amniotic cavit
y.
E. is not an embryonic part of the placenta
.
24
.
The chorionic vill
i
A.
f
orm from branches of the syncytiotrophoblast cords
.
B. increase surface area of the amniotic cavit
y.
C. contribute to the formation of the placenta
.
D.
a
re necessary for implantation to occur
.
E. are not
p
art of the
p
lacental formation
.
25
.
Placenta previa occurs whe
n
A.
a
normall
y
p
laced
p
lacenta tears awa
y
from the uterine wall
.
B.
t
he placenta is formed too early
.
C. implantation occurs close to the cervix
.
D.
i
m
p
lantation occurs in the fundus of the uterus
.
26
.
Where does implantation normally occur
?
A.
i
n the fundus area of the uterus
B. in the isthmus area of the uterine tube
C. in the cervix area of the uterus
D.
i
n the infundibulum area of the uterine tube
27
.
The embryonic disk is initially composed o
f
A.
e
ctoderm and hypoblast
.
B. epiblast and mesoderm
.
C. e
p
iblast and h
yp
oblast
.
D.
hyp
oblast and
y
olk sac
.
E. epiblast and yolk sac
.
28
.
The embr
y
onic membrane that com
p
letel
y
encloses the embr
y
o in a water
y
sac is the
A.
y
olk sac
.
B. amnion
.
C. allantois
.
D.
c
horion
.
E. ectodermal sac
.
29
.
Gastrulation is the process of development that produces the
A.
p
lacenta
.
B. embryonic disk
.
C. germ layers
.
D.
r
udimentar
y
or
g
ans
.
30
.
Some epiblast cells migrate and emerge between the epiblast and endoderm as a new germ layer called the
A.
y
olk sac
.
B.
m
esoglia
.
C.
n
otochord
.
D.
m
esoderm
.
E.
p
rimitive streak
.
31
.
Throu
g
h what structure do e
p
iblast cells mi
g
rate to form the mesoderm
?
A.
l
acunae
B. chorionic vill
i
C.
hyp
oblast
D.
p
rimitive strea
k
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Document Summary
Page 5 of 42: nasal cavity, kidneys, the pleural and peritoneal cavities of the adult begin as part of the _____ cavity. Page 14 of 42 walk: increases blood pressure, improves circulation, promotes anaerobic metabolism, increases urine output, increases peripheral resistance, autoimmune diseases such as arthritis become more common as people get older. Page 15 of 42: the picture shows a mature placenta and fetus. What does a represent: umbilical vein, umbilical arteries, umbilical cord, placenta, endometrium, the picture shows a mature placenta and fetus. What does e represent: umbilical vein, umbilical arteries, umbilical cord, placenta, endometrium, the picture shows a full term pregnancy. What does a represent: placenta, umbilical cord, urinary bladder, mucus plug in cervical canal. Page 16 of 42: vagina, the picture shows a full term pregnancy. What does e represent: placenta, umbilical cord, urinary bladder, mucus plug in cervical canal, vagina, the period from conception until birth is.
