Lab 9 Reproductive System

Question 1

Mesometrium

Answer 1

part of the broad ligament specifically anchoring the uterus

Question 2

Mesosalpinx

Answer 2

the part of the broad ligament anchoring the uterine tubes

Question 3

Round Ligaments

Answer 3

fibrous cords that run from the uterus to the labia majora

Question 4

Ovarian Ligament

Answer 4

supports the ovaries medially

Question 5

Suspensory Ligament

Answer 5

supports the ovaries laterally

Question 6

Mesovarium

Answer 6

fold of the broad ligament that supports the ovaries posteriorly

Question 7

Broad Ligament

Answer 7

mesometrium
mesosalpinx
mesovarium

Question 8

Gametogenesis

Answer 8

the process of gamete formation

Question 9

Homologous Chromosomes

Answer 9

chromosomes that carry genes for the same traits

Question 10

Synapsis

Answer 10

pairing of homologous chromosomes

Question 11

Tetrads

Answer 11

groupings of four chromatids

Question 12

Chiasmata

Answer 12

the points of crossover for chromosomes

Question 13

Dyads

Answer 13

sister chromatids that will not break apart again

Question 14

Sustenticular/ Sertoli Cell

Answer 14

nourish spematids as they begin their transformation into sperm

Question 15

Interstitial/ Leydig Cell

Answer 15

secretes testosterone when stimulated by LH

Question 16

Acrosome

Answer 16

anterior to the nucleus of the sperm

contains enzymes involved in sperm penetration of the egg

Question 17

Head of Sperm

Answer 17

the round portion at one end

Question 18

Tail of Sperm

Answer 18

long portion at one end

Question 19

Midpiece of Sperm

Answer 19

in between head and tail

Question 20

Corona Radiata

Answer 20

capsule of several layers of granulosa cells that surround the secondary oocyte

Question 21

Theca Folliculi

Answer 21

enclosure of a mature follicle in connective tissue

Question 22

Menstrual Phase

Answer 22

shedding of the functional layer of the endometrium

days 1-5

Question 23

Proliferative Phase

Answer 23

rebuilding of the functional layer of the endometrium under influence of estrogen
ovulation occurs at the end
days 6-14

Question 24

Secretory Phase

Answer 24

occurs immediately after ovulation
blood supply is enriched and glandular secretion of nutrients increases
prepare the endometrium to receive and embryo

Question 25

Fertilization

Answer 25

the egg and sperm nuclei fuse to form a single nucleus

Question 26

Blastomeres

Answer 26

a mass of successively smaller cells

Question 27

Cleavage

Answer 27

series of mitotic divisions without intervening growth periods

Question 28

Morula

Answer 28

the zygote at the 32 cell phase

Question 29

Blastula

Answer 29

ball of cells surrounding a central cavity

Question 30

Gastrulation

Answer 30

modifying the blastula intoa gastrula

Question 31

Endoderm

Answer 31

innermost layer of body tissues

Question 32

Mesoderm

Answer 32

middle layer of body tissues

Question 33

Ectoderm

Answer 33

outermost layer of body tissues

Question 34

Blastocyst/ Chorionic Vesicle

Answer 34

the final product of cleavage

Question 35

Inner Cell Mass

Answer 35

cells clumped at one side of the blastocyst

Question 36

Trophoblast

Answer 36

the cells enclosing the central cavity of the blastocyst

Question 37

Chorion

Answer 37

trophoblast becomes the fetal portion of the placenta | extraembryonic membrane

Question 38

Yolk Sac

Answer 38

embryos fist blood cells originate here | used to do what the placenta now does

Question 39

Amnion

Answer 39

protects the embryo against mechanical traumas and temperature extremes

Question 40

Allantois

Answer 40

protrudes from the posterior end of the yolk sac | largely redundant