Exam 4 Review: Reprdoductive System Flashcards
Incision of tissue between the vulva and anus
- episiotomy
- procedure cutting the perineum to make the vaginal opening larger for childbirth
Loss of fetus before week 20 of pregnancy
- miscarriage (1st)
- fetal demise
- spontaneous abortion
Extraction of amniotic fluid for fetal testing
amniocentesis
Implantation of fertilized egg outside the uterine cavity
ectopic pregnancy
The stage of development in which the embryo is a hollow ball of cells
blastula develops into blastocyst
Successively smaller cells are produced during what developmental process?
cleavage
The inner layer of cells in the gastrula is the
Also, what organs does it give rise to?
- endoderm
- innermost germ layer
- gives rise to the GI tract, lining of the gut, liver, pancreas, portions of the lungs and glandular tissues
The blastula changes into a three-layered structure during what process?
gastrulation
The developing human embryo is almost human-looking by the end of this week, and is subsequently referred to as a fetus
week 8
What does the fertilization membrane do?
prevent multiple fertilization by acting as a barrier to stop penetration of additional spermatozoa in the ovum
List the stages of spermatogenesis in order
- spermatogonium
- primary spermatocytes
- secondary spermatocytes
- spermatids
- spermatozoa (sperm)
Where does spermatogenesis occur?
in the seminiferous tubule
Spermatogonium
- 1st stage of spermatogenesis
- A diploid cell undergoes Mitosis to become a primary spermatocyte
Primary Spermatocyte
- 2nd stage of spermatogenesis
- cell undergoes Meiosis I to produce secondary spermatocytes
- 2 cells created:
- smaller one contains polar bodies and doesn’t continue
- larger once continues through Meiosis I to produce secondary spermatocyte
Secondary Spermatocyte
- 3rd stage of spermatogenesis
- cell undergoes Meiosis II to produce spermatids
- 2 cells produced:
- both continue Meiosis II
Spermatids
- 4th stage of spermatogenesis
- 4 cells at the edge of the lumen
- undergo Spermiogenesis to mature into spermatozoa
What is the function of a Sustentacular Cell?
removes cytoplasmic remains from spermatids so they can become sperm before they enter the lumen
What is spermiation?
the movement of sperm into the lumen
What are the different types of Spermatogonium?
- primordial cell
- pluripotent cell
- stem cell
- undifferentiated cell
Primordial Cell
- 1st cell that starts the production of sperm (spermatogenesis)
- type of spermatogonium
Pluripotent Cell
- a cell that has many powers to form other cells
- type of spermatogonium
Stem Cell
- mother cell that has the potential to develop into many different types of cells
- type of spermatogonium
Undifferentiated Cell
- a potent cell that can form other little cells with no specialized structure or function
- type of spermatogonium
Why do spermatogonium undergo mitosis?
they are somatic cells (diploid)
The development of an organ is called
organogenesis
What is the function of the amnion?
- the amniotic sac that represents the fetal membrane directly surrounding the fetus
- protects the baby from mother’s body and provides nutrients, immune protection, waste removal, and gas exchange
What is a single fertilized egg?
zygote
Which follicle ovulates?
What are other names for the follicle?
- tertiary follicle
- AKA mature follicle
- AKA Graafian follicle
- AKA follicle of graaf
The Na+ level in blood is controlled by
hormone aldosterone made by the adrenal glands
Gastrulation produces what?
- 3 germinal layers
- ectoderm
- endoderm
- mesoderm
What structure is the site of sperm production?
seminiferous tubules
What is the purpose of the thin, milky alkaline fluid secreted by the prostate gland?
- contains enzymes that makes the semen thinner
- the seminal fluid nourishes and transports the sperm
The spermatozoa are stored and matured in the
epididymis
What is the tough, white fibrous capsule around the testis?
tunica albuginea
The female organ that is homologous to the male penis is the
clitoris
Which cells produce testosterone?
interstistial cells of Leydig
The male organ composed of erectile tissue is the
penis