Chapter 26 Flashcards
Which of the following is considered a primary sex organ in males?
testes
In response to warmth, the scrotum __________.
increases its surface area
interstitial cells
interstitial cells
seminiferous tubules
site of sperm production in the testes
tunica albuginea
ibrous capsule of the testes
epididymis
. site of sperm storage
pampiniform venous plexus
cools arterial blood to keep the testes below core temperature
The main component of semen is sperm.
false
he diploid chromosome number in humans is __________.
46
Which of the following is true about meiosis?
Meiosis produces cells that have a haploid chromosome number.
prophase I
crossovers
metaphase I
Tetrads align along the cell’s equator.
anaphase I
Homologous chromosomes separate from one another.
telophase I
Two haploid daughter cells are formed.
telophase II
Four genetically unique haploid cells are formed.
Conversion of haploid spermatids to spermatozoa is specifically called __________.
spermiogenesis
The area of the sperm cell that contains many mitochondria is the __________.
midpiece
_________ acts upon the __________ to encourage the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
Gonadotropin-releasing hormone (GnRH); anterior pituitary
Which of the following is NOT an effect of testosterone?
decreases sperm production
The ovaries are situated retroperitoneally next to the kidneys.
False
fallopian tubes
generally the site of fertilization of the ovulated oocyte
fimbriae
finger-like projections that brush over the ovary
uterus
receives, retains, and nourishes a fertilized ovum
vagina
thin walled structure that connects the uterus to the body exterior
ovaries
. house and form the female gametes
The __________ is shed during menstruation.
stratum functionalis
The __________ of the mammary glands are responsible for producing milk during lactation.
alveoli
The pH of the adult female vagina is normally __________.
acidic
Choose the FALSE statement about oogenesis.
In humans, the secondary oocyte must complete meiosis II before it can be fertilized.
__________ stimulates the anterior pituitary to release follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
Gonadotropin-releasing hormone
The functional layer of the endometrium is shed in response to __________.
decreased progesterone levels