A&P II Lecture Test #2 (Ch. 26 & 27)
Reproductive Biology Quiz
Test your knowledge on reproductive biology with our comprehensive quiz covering Chapters 26 and 27! This quiz contains 40 multiple-choice questions designed to challenge your understanding of critical concepts in anatomy and physiology.
Whether you're a student or just keen on biological sciences, you'll find this quiz both educational and engaging. Topics covered include:
- Male and female reproductive systems
- Developmental biology
- Hormonal regulation
- Fetal development
The reason why testes are suspended in the scrotum is
To provide for a cooler temperature
To reduce the chance of infection
To place the sperm storage site closer to the penis
To create extra space for sex organs
An ovary is held in position by the broad ligament, suspensory ligament and ovarian ligament.
True
False
Which of the following is NOT a function of amniotic fluid?
Provides nutrition for the developing embryo
Protects the embryo from trauma
Allows the embryo freedom of movement
Maintains a constant temperature for the developing embryo
The Apgar score is assigned for several criteria measured at birth. What is NOT measured?
Defecation
Grimace
Respiratory level
Muscle activity
A blastomere is a _____________ and a blastocyst is ______________.
Hollow ball of cells; a cell resulting from cleavage
Fetal membrane; an embryonic membrane
Cell produced by cleavage; a hollow ball of cells
Cell produced by cleavage; a solid ball of cells
_________________ is the watery secretions from the breast 2-3 days after birth that contains mostly antibodies, proteins, and minerals but very little fat.
Colostrum
Myoepithelium
Celiac
Oxytocin
The functions of the placenta are to allow
Oxygen and nutrients to diffuse from maternal blood through the placental membrane into the embryo
Carbon dioxide and other wastes to diffuse from the maternal blood into the embryonic blood
The movement of anesthetics from the maternal blood into the fetus
Oxygen and nutrients to diffuse from fetal blood into the maternal blood
The _________ of the sperm is where the nucleus is housed.
Acrosome
Tail
Head
Midpiece
In order to fuse with the cell membrane of an egg, the sperm would have to first break through the zona pellucida and then through the corona radiata.
True
False
Fertilization normally occurs in the
Peritoneal cavity
Uterus
Uterine tube
Vagina
The secretions of the seminal vesicles contain ____________________, which is the main source of energy (nutrient/food) for sperm cells.
Glucose
Alkaline fluid
Sucrose
Fructose
By which period of prenatal development will the placenta be fully formed?
Pre-embryonic period (cleavage stage)
Fetal period
Embryonic period
infancy
The zygote contains chromosomes from
The mother only
Both the mother and father, but only half from each
The father only
Each parent and then the zygote synthesizes others
Which fetal hormone initiates labor?
Estrogen
Progesterone
Cortisol
Prolactin
What do the umbilical arteries transport?
Deoxygenated blood away from the fetal heart
Oxygenated blood away from the fetal heart
Oxygenated blood toward the fetal heart
nutrients toward the fetal heart
What contributes to the fetal portion of the placenta?
Allantois
Decidua basalis
Decidua capsularis
Chorionic vili
Which of the following is the most correct sequence of sperm flow in the male reproductive duct system?
Seminiferous tubules, epididymis, ductus deferens, ampulla, ejaculatory duct, urethra
Seminiferous tubules, ductus deferens, ampulla, epididymus, ejaculatory duct, urethra
Seminiferous tubules, epididymis, ampulla, ductus deferens, ejaculatory duct, urethra
Seminiferous tubules, ampulla, epididymis, ductus deferens, ejaculatory duct, urethra
What layer of the uterine wall is composed of smooth muscle and contracts rhythmically during orgasm and childbirth?
Perimetrium
Myometrium
Endometrium
Peritoneum
During the embryonic stage of development, _______________ ___________develop, which are finger-like extensions arising from the trophoblast, and some will attach to the endometrium.
Chorionic villi
Blastocysts
Blastomeres
Morulae
When a cell has two copies of each chromosome, it is called a ______________ cell. When a cell has only one copy of each chromosome, it is called a ________________ cell.
Haploid; diploid
Diploid; zygote
Diploid; haploid
Diploid; aneuploid
During which phase of the uterine (menstrual) cycle will stratum functionalis develop with endometrial glands and spiral arteries and veins?
Proliferative (preovulatory) phase
Secretory (postovulatory) phase
Luteal phase
Menstrual phase
The membrane-bound sac on the sperm that contains digestives enzymes to help with fertilization is called the ______________.
Acrosome
Head
Midpiece
Tail
Cells that are undifferentiated, but can give rise to sperm are called
Spermatogonia
Spermatids
Primary spermatocytes
Secondary spermatocytes
What represents the effect of inhibin on male hormone production?
Inhibin decreases gonadotropin-releasing hormone (GnRH) secretion
Inhibin decreases the secretion of follicle-stimulating hormone (FSH)
Inhibin increases luteinizing hormone (LH) secretion
Inhibin increases testosterone secretion
Which of the following is true in regard to the fetal stage of development?
It begins at the beginning of the 9th week after fertilization
The organ systems are not yet formed.
The organ systems are mostly formed, although all are still immature
The head is disproportionately large compared to the rest of the body at the beginning of the fetal stage
The differentiation of the germ layers into organs and organ systems is known as
Gastrulation
Ingression
Organogenesis
Embryonic folding
Mammary glands have three different types of ducts that lead to the opening of the nipple. They are the
Alveolar ducts
Lactiferous ducts
Mammary ducts
Lactogen ducts
The epididymis functions to produce testosterone in males
True
False
Male reproductive functions are controlled mainly by hormones from the hypothalamus, and the
Posterior pituitary and adrenal glands
Anterior pituitary and adrenal glands
Posterior pituitary and testes
Anterior pituitary and testes
During early development, a solid ball of 16 cells known as a ______________ is formed. This will give rise to the blastocyst.
Cleavage
Gastrula
Gastrocyst
Morula
The interstitial cells of the testes produce
Seminal fluid
Egg cells
Androgens (testosterone)
Sperm cells
Which hormone produced by the placenta causes the woman’s symphysis pubis to loosen and widen?
FSH
HCG
Relaxin
Estrogen
In response to parasympathetic stimulation
Arteries in the penis constrict
Fertilization is encouraged
Ejaculation occurs
Blood flow increases to the penis
The most important hormone in initiating and maintaining lactation after birth is
Prolactin
Estrogen
Lutenizing hormone
Oxytocin
Egg cells are transported in the female reproductive tract by the _______________, whereas sperm move through the male reproductive tract by the
Action of ciliated epithelium in the uterine tube; lashing movement of their tails
Peristaltic contractions of the vaginal wall; peristaltic contractions of the uterus
Activity of the seminal vesicle secretion; activity of the prostate gland secretions
Movement of their tails; lashing movement of their tails
Labor progresses through the following three stages:
Dilation, expansion, and pushing stages
Duration, expansion, and placental stages
Dilation, effacing, and placental stages
Dilation, expulsion, and placental stages
Which of the following hormones is responsible for inducing spermatogonia to be responsive to the effects of testosterone?
Lutenizing hormone
Prolactin
Inhibin
Follicle-stimulating hormone
Damage to the sustentacular cells of the testes could impair
FSH and LH production
Production of estrogens
Spermatogenesis
Oogenesis
Follicle-stimulating hormone (FSH) will stimulate primordial follicles to start the maturation process.
True
False
A zygote is
A secondary oocyte
A fertilized egg cell
A mature sperm cell
A primary oocyte
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