BIOL 2402 lab Exam 4 Questions | 2026/2027 | Answers
Correct | With Complete Solutions
__________ involves the movement of the blastocyst into the
endometrium. Correct Answers implantation
________________ (genesis = formation of) is marked by the
formation of the three primitive germ layers that begins with the
process called ________________ occurring towards the end of
the preembryonic stage. Correct Answers embryogenesis
gastrulation
_________________ stimulates production of male reproductive
system in fetus and an adolescent. Additionally, it is responsible
for development of male secondary sex characteristics, the sex
drive, sperm production and sexual instinct throughout adult life.
Correct Answers testosterone
(2) carry deoxygenated and waste-laden blood from fetus back
to the placenta. Correct Answers umbilical arteries
16 days to 8 weeks after fertilization Correct Answers
embryonic stage
A countercurrent heat exchange between the testicular artery and
a network of testicular veins, collectively called the __________
_________, transfers heat from incoming arterial blood supply
to the veins heading back into the body cavity Correct Answers
pampiniform plexus
,A flat sheet of ligament called the _____ ________ attaches to
and secures the ovaries, uterine tubes, and uterus to the wall of
the pelvic cavity. Correct Answers broad ligament
A microscopic observation of the ___ reveals the seminiferous
tubules and interstitial cells between them. Correct Answers
testis
A nursing infant activates the _____ ______ reflex by
stimulating nerve endings in the areola and nipple that promote
the secretion of ___________ Correct Answers milk ejection
oxytocin
A section through the testis reveals that its interior is dominated
by tightly coiled ___________ _______________, the site of
spermatogenesis. Correct Answers seminiferous tubules
a solid ball of cells Correct Answers morula
About one week after fertilization, the blastocyst floats free in
the uterine cavity where ___________ takes place Correct
Answers implantation
Acini are organized into bundles called ________, which are
grouped into 15-25 lobes in each breast. Correct Answers
lobules
Additionally, another muscle called the ___________ extends
from the internal abdominal oblique muscle down the spermatic
cord and surrounds each testicle. Correct Answers cremaster
,After ovulation, granulosa cells of the ovulated follicle
differentiate to form a ______ ______ Correct Answers corpus
luteum
After ovulation, the mature follicle develops into the: Correct
Answers corpus luteum
An outer covering of fibrous connective tissue known as the
______ _________ covers the ovaries and several paired
ligaments hold them in place within the pelvic cavity Correct
Answers tunica albuginea
As it emerges from the prostate gland, the second segment, the
__________ urethra, begins. It extends through the urogenital
diaphragm to the root of the penis. Correct Answers
membranous
As sperm pass through the male reproductive ducts, fluids are
added that provide a liquid medium called _____ Correct
Answers semen
At the distal end, near the ovary, the uterine tube expands to
form the funnel-shaped ____________ that contains finger-like
projections known as ________. Correct Answers
infundibulum, fimbriae
At the root of the penis, the final segment, the ______ urethra,
begins and extends through the penis to eventually open to the
exterior at the external urethral orifice. Correct Answers
spongy
, At the time of ovulation, peristaltic contractions of the smooth
muscle and movement of the cilia in the lumen of the uterine
tube generates a current of peritoneal fluid that transports the
released oocyte into the tube. The oocyte slowly drifts towards
the middle of the tube called the _______ that comprises nearly
two-thirds of the tube's total length; fertilization of the oocyte
normally occurs within the ampulla. Correct Answers ampulla
Attached to the tunica vaginalis is a cord of various tissues
known as the ___________ ________ that extends from the
testes into the pelvic cavity. Correct Answers spermatic cord
attaches ovaries to broad ligament Correct Answers
mesovarium
attaches ovary to wall of pelvic cavity Correct Answers
suspensory ligament
Behind the urinary bladder, the ductus deferens broadens to
form an ________ that joins the duct of the seminal vesicle to
form the short ejaculatory duct. The two ejaculatory ducts, one
from each side, extend medially until they unite with the
_______ urethra within the prostate gland that is located inferior
to the urinary bladder. Correct Answers ampulla
prostatic
blastodisc layer facing the amniotic cavity Correct Answers
epiblast
blastodisc layer facing the blastocoele Correct Answers
hypoblast
Correct | With Complete Solutions
__________ involves the movement of the blastocyst into the
endometrium. Correct Answers implantation
________________ (genesis = formation of) is marked by the
formation of the three primitive germ layers that begins with the
process called ________________ occurring towards the end of
the preembryonic stage. Correct Answers embryogenesis
gastrulation
_________________ stimulates production of male reproductive
system in fetus and an adolescent. Additionally, it is responsible
for development of male secondary sex characteristics, the sex
drive, sperm production and sexual instinct throughout adult life.
Correct Answers testosterone
(2) carry deoxygenated and waste-laden blood from fetus back
to the placenta. Correct Answers umbilical arteries
16 days to 8 weeks after fertilization Correct Answers
embryonic stage
A countercurrent heat exchange between the testicular artery and
a network of testicular veins, collectively called the __________
_________, transfers heat from incoming arterial blood supply
to the veins heading back into the body cavity Correct Answers
pampiniform plexus
,A flat sheet of ligament called the _____ ________ attaches to
and secures the ovaries, uterine tubes, and uterus to the wall of
the pelvic cavity. Correct Answers broad ligament
A microscopic observation of the ___ reveals the seminiferous
tubules and interstitial cells between them. Correct Answers
testis
A nursing infant activates the _____ ______ reflex by
stimulating nerve endings in the areola and nipple that promote
the secretion of ___________ Correct Answers milk ejection
oxytocin
A section through the testis reveals that its interior is dominated
by tightly coiled ___________ _______________, the site of
spermatogenesis. Correct Answers seminiferous tubules
a solid ball of cells Correct Answers morula
About one week after fertilization, the blastocyst floats free in
the uterine cavity where ___________ takes place Correct
Answers implantation
Acini are organized into bundles called ________, which are
grouped into 15-25 lobes in each breast. Correct Answers
lobules
Additionally, another muscle called the ___________ extends
from the internal abdominal oblique muscle down the spermatic
cord and surrounds each testicle. Correct Answers cremaster
,After ovulation, granulosa cells of the ovulated follicle
differentiate to form a ______ ______ Correct Answers corpus
luteum
After ovulation, the mature follicle develops into the: Correct
Answers corpus luteum
An outer covering of fibrous connective tissue known as the
______ _________ covers the ovaries and several paired
ligaments hold them in place within the pelvic cavity Correct
Answers tunica albuginea
As it emerges from the prostate gland, the second segment, the
__________ urethra, begins. It extends through the urogenital
diaphragm to the root of the penis. Correct Answers
membranous
As sperm pass through the male reproductive ducts, fluids are
added that provide a liquid medium called _____ Correct
Answers semen
At the distal end, near the ovary, the uterine tube expands to
form the funnel-shaped ____________ that contains finger-like
projections known as ________. Correct Answers
infundibulum, fimbriae
At the root of the penis, the final segment, the ______ urethra,
begins and extends through the penis to eventually open to the
exterior at the external urethral orifice. Correct Answers
spongy
, At the time of ovulation, peristaltic contractions of the smooth
muscle and movement of the cilia in the lumen of the uterine
tube generates a current of peritoneal fluid that transports the
released oocyte into the tube. The oocyte slowly drifts towards
the middle of the tube called the _______ that comprises nearly
two-thirds of the tube's total length; fertilization of the oocyte
normally occurs within the ampulla. Correct Answers ampulla
Attached to the tunica vaginalis is a cord of various tissues
known as the ___________ ________ that extends from the
testes into the pelvic cavity. Correct Answers spermatic cord
attaches ovaries to broad ligament Correct Answers
mesovarium
attaches ovary to wall of pelvic cavity Correct Answers
suspensory ligament
Behind the urinary bladder, the ductus deferens broadens to
form an ________ that joins the duct of the seminal vesicle to
form the short ejaculatory duct. The two ejaculatory ducts, one
from each side, extend medially until they unite with the
_______ urethra within the prostate gland that is located inferior
to the urinary bladder. Correct Answers ampulla
prostatic
blastodisc layer facing the amniotic cavity Correct Answers
epiblast
blastodisc layer facing the blastocoele Correct Answers
hypoblast
