Anatomy Ch 23 Homework

Which of the cells listed below has only one set (haploid) of genetic information? 1. first polar body 2. ovum 3. primary oocyte 4. secondary oocyte 5. oogonium

1, 2, 4

The uterine tubes: 1. are the typical site of fertilization 2. are also called oviducts 3. are lined by cells that have microvilli called fimbriae 4. have a section called the ampulla which makes up about the lateral two-thirds of the length of the tubes 5. attach the ovaries firmly to the uterus

1, 2, 4 only

A normal human body cell contains _____ chromosomes and a normal unfertilized human oocyte (egg) contains _____ chromosomes.

46, 23

Which of the following is a TRUE statement?

Chromatids separate during anaphase.

Which of the labeled features in the illustration shown is a mature (Graafian) follicle?

D

During which phase of the cell cycle does DNA replication occur?

S phase

Which of the following statements is FALSE? a. Fertilization normally occurs in the ampulla of the uterine (fallopian) tube. b. Implantation normally occurs in the endometrium of the uterus. c. Fertilization can occur at any time up to about 24 hours after ovulation. d. The ovulated secondary oocyte must enter the uterine (fallopian) tube. e. The infundibulum of the uterine tube opens to the peritoneal cavity.

The ovulated secondary oocyte must enter the uterine (fallopian) tube.

During which phase do centromeres divide so that the sister chromatids separate?

a

What are the end products of the first meiotic division (meiosis I) in oogenesis?

a secondary oocyte and first polar body

The stage of a secondary follicle begins with formation of the ____________________________.

antrum

What is the name of the region labeled with the arrow?

areola

In the figure shown, which structure is indicated?

cervix of uterus

The part of the vulva that contains erectile tissue is the

clitoris

What is the name of the structure labeled with the arrow?

corpus luteum

What is the function of the vagina? a. serves as an outlet for menstrual flow b. provides the passage way for childbirth c. serves as the receptacle for the penis during intercourse d. all of the choices are correct

d. all of the choices are correct

Another word for uterine tube is __________________.

fallopian tube

An embryo with sex chromosomes of XX will most likely become a/n _______________.

female

Germ cells are destined to become

gametes

Human cells contain 23 pairs of chromosomes with one member of each pair coming from each parent. The two chromosomes containing genes that are found in the same location and in the same order are called:

homologous chromosomes

The vulva (pudendum):

is the female external genitalia.

Which portion of the uterine tube is more medial to all other sections?

isthmus

Reproductive cells divide through a process called __________ which produces new cells with _________ number of chromosomes as the original parent cell.

meiosis; half of the

The corpus luteum: a. develops from a corpus albicans. b. develops prior to ovulation. c. is the zone of the ovary that contains ovarian follicles. d. none of these choices

none of these choices

The vagina is composed of which type of epithelium?

nonkeratinized stratified squamous

In the ovary, primary follicles consists of:

primary oocyte

This structure is released at the time of ovulation.

secondary oocyte

What is the male homolog to the ovary?

testis

The female gamete (ovum) is not formed until meiosis II is completed when:

the secondary oocyte has been fertilized by the sperm

Where does fertilization typically occur?

uterine tubes