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AP 2 Lab Exam 4
Terms in this set (48)
The constancy of the chromosome number from one cell generation to the next is maintained through ________.
The basic difference between spermatogenesis and oogenesis is that ________.
in oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced from the parent cell
The second half of the menstrual cycle is regulated largely by
the corpus luteum
Semen contains all of the following secretions except
________ is the most common type of fetal testing.
What is the name of the structure shown in this picture
What is the name of the cell that enters meiosis I and gives daughter cells with a haploid chromosome set
Human egg and sperm are similar in that ________.
they have the same number of chromosomes
Which of the following is a correct statement about uterine tubes?
The infundibulum is the funnel-shaped region near the ovary.
If gametes were diploid like somatic cells, how many chromosomes would the zygote contain?
twice the diploid number, and with every succeeding generation, the chromosome number would continue to double and normal development could not occur
Implantation involves ________.
embedding of the blastocyst in the uterine wall
At the time of the sexual cycle when the uterus is building up endometrial tissue by mitosis,
several follicles are developing antra.
Neural tissue is formed by the ________.
The structures that receive the ovulated oocyte, providing a site for fertilization, are called the ________.
The lactating breast produces milk in
Which of the choices below is not a function of the vagina?
serves as a passageway for the primary oocyte
In the process of spermiogenesis _____ become _____.
The optimal temperature for sperm production is
35 degrees C
The umbilical arteries carry ________.
waste products to the placenta
Surgical cutting of the ductus deferens as a form of birth control is called a(n) ________.
Why doesnâ t semen enter the urinary bladder during ejaculation?
The smooth muscle sphincter at the base of the urinary bladder closes
Which part does not belong to the uterine tubes
What is the name of the ligament that connects the ovaries to the uterus
The developing individual is called a(n) ____ during the first two weeks, a(n) ____ from two through eight weeks, and a(n) _____ from the beginning of week nine until birth.
blastocyst; embryo; fetus
Fertilization generally occurs in the ________.
Which of the following is not a germ layer?
The correct sequence of preembryonic structures is ________.
zygote, morula, blastocyst
Which of the following represents the correct order in the process of spermatogenesis?
spermatogonium to primary spermatocyte to secondary spermatocyte to spermatids to spermatozoa
The light brown colored structure topping the testes is called
Characteristics of the mature sperm include the ________.
presence of Y chromosomes in approximately half the sperm
A type B spermatogonium gives rise to
two secondary spermatocytes.
When the follicle expels the secondary oocyte, it becomes the ____ and secretes ____.
corpus luteum; estrogen and progesterone
A normal sperm count is
50 to 120 million sperm/ml semen.
The cremaster muscle
is a skeletal muscle that draws the testes closer to the body to keep them warm
This picture represents the end product of
This picture represents the female
All of the following can be considered male secondary sex characteristics except the ________.
development of testes as opposed to ovaries
The dartos and cremaster muscles are important to the integrity of the male reproductive system. Which of the following is true about the role they play?
They regulate the temperature of the testes
The placenta, a vitally important metabolic organ, is made up of a contribution from mother and fetus. Which portion is from the fetus?
The netlike blue colored structure in this picture represents
The structure that is being expelled in this picture (lower right quadrant) represents
Ovulation is triggered by
The three regions of the male urethra are
prostatic, membranous, penile
The stratum ____ of the endothelium is shed in each menstrual period.
involves a kind of cell division limited to the gametes
Meiosis II is the process by which _____ become _____.
secondary spermatocytes; spermatids
Muscle tissue is formed by the ________.
The eggs are moved along the uterine tube by
cilia and peristaltic waves
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