Lab 12 + 13

Male reproductive stem cells are called ____________.

spermatogonia

Cells located in each seminiferous tubule which function to provide a microenvironment that supports spermatogenesis are called

 

nurse cells

The head portion of the sperm contains

 

a nucleus with tightly packed chromosomes

An acrosome is located at the tip of the head of each spermatozoon. What is contained in the acrosome?

 

enzymes essential for fertilization

The only cell in the human body that has a flagellum is a(n)

sperm

How many chromosomes do human gametes contain?

23

During spermatogenesis, the process in which spermatids differentiate into physically mature sperm is called

 

spermiogenesis

How many chromosomes do human primary spermatocytes contain?

 

46 chromosomes

Secondary spermatocytes are produced during meiosis I. How many chromosomes do secondary spermatocytes have?

 

23 chromosomes

During oogenesis, two or three nonfunctional cells are produced that will eventually disintegrate. What is the name of these cells?

 

polar bodies

When in a woman’s life span do secondary oocytes begin to be produced?

puberty

When do female reproductive stem cells complete their mitotic division?

 

before birth

What do we call the cell from which the ovum will arise through the process of meiosis?

oocyte

At what stage does the ovum burst out of the follicle into the duct system of the female reproductive tract?

 

the Graafian follicle stage

What do we call the glandular structure that is the remains of the follicle left behind after ovulation?

 

corpus luteum

What is the name of the cycle responsible for the monthly series of events that culminates in the maturation of the oocyte into the ovum?

 

the ovarian cycle

During which stage of the ovarian cycle does the primordial follicle develop?

 

the follicular phase

Ovulation marks the end of which phase of the ovarian cycle?

 

the follicular phase

What is another name for the menstrual cycle?

 

the uterine cycle

What is another name for the proliferation phase?

 

the preovulatory phase

 Which phase corresponds to Day 1 of the ovarian phase?

 

the menstrual phase

True or false? The corpus luteum secretes both estrogen and progesterone.

True

True or false? Implantation and eventual development of the embryo occurs in the endometrium, the lining of the uterus.

True

During the secretory phase, the endometrium prepares for implantation of an embryo.

True

During the ovarian cycle, on which day is the spike in estrogen and progesterone levels observed?

 

day 14

Which cells does LH target?

 

the thecal cells

Which cells does FSH target?

 

the follicle cells

Besides progesterone and estrogen, what other hormone secreted by the corpus luteum helps inhibit FSH and LH secretion?

inhibin

Increasing levels of what hormone causes the cervical mucus to become viscous and form a cervical plug?

progesterone

The layer of cells that forms a connective tissue that surrounds the follicle is called what?

 

thecal cells