Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

NAT 502 > Reproductive System > Flashcards

Reproductive System Flashcards

1
Q

All but one of the events described below occur during spermiogenesis. Select the event that does not occur during spermiogenesis

A

Mitochondrial DNA is packaged into the nucleus to be delivered to the egg during fertilization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The cells that produce testosterone in the testes are called…

A

Interstitial endocrine cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

A scrotal muscle that contracts in response to cold environmental temperature is the cremaster. True or false?

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Select the correct statement about the events of the ovarian cycle.

A

High estrogen levels result in a surge of LH release

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The testes is divided into seminiferous tubules which contain the lobules that produce sperm And the ejaculatory duct that allows the sperm to be ejected from the body. True or false?

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

All but one of the following statements describes the necessity of the blood testes barrier. Select the one statement that does not describe a necessity of the blood testis barrier..

A

Sperm and can only be produced at temperatures lower body temperature. Inflammation in the testes could raise the temperature too high to produce sperm.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The correct sequence of preembryonic structure is…

A

Zygote, morula, blastocyte

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which of the following is not a primary germ layer? Ectoderm, mesoderm, epiderm, endoderm

A

epiderm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Freshly deposited sperm are not immediately capable of penetrating oocyte. True or false?

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The period from fertilization through week eight is called the embryonic period. True or false?

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A friend confides that she desires to have children but is having trouble conceiving. Which of the following is true regarding implantation?

A

It is estimated that a minimum of two thirds of all zygotes formed fail to implant by the end of the first week or spontaneously abort.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

An Episiotomy is an incision made to widen the vaginal orifice, aiding fetal expulsion. True or false?

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What destroys the Zona lucida sperm-binding receptors?

A

Zonal inhibiting proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

A pregnancy test involves antibodies that detect growth hormone (GH) levels in a woman’s blood or urine. True or false?

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Spermatogenesis…

A

Involves a kind of cell division limited to the gametes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Human papillomavirus

A

Genital warts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Treponema pallidum.

A

Syphilis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Urethritis in males

A

Gonorrhea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Human herpes virus type 2

A

Genital herpes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Organism responsible for up to half of the diagnosed cases of pelvic inflammatory disease.

A

Chlamydia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Produces cells for growth and tissue repair.

A

Mitosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Produces 4 daughter cells.

A

Meiosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Homologous chromosomes separate from one another.

A

Anaphase I

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Tetrads randomly align along the cell’s equator.

A

Metaphase I

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Two genetically unique haploid cells are formed.

A

Telaphase I

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Forms the mother’s part of the placenta

A

Decidua basalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Becomes the embryonic disc

A

Inner cells mass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

A solid sphere of undifferentiated cells

A

Morula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Forms the chorion

A

Trophoblast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Surrounds the uterine cavity face of the implanted embryo

A

Decidua capsularis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Leads to the development of a morula and then a blastocyte

A

cleavage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Embedding of a blastocyte in the uterine wall

A

Implantation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Leads to the formation of the first cell of the new individual

A

Fertilization

34
Q

Leads to the establishment of three primary germ layers

A

Gastrulation

35
Q

Leads to the enhancement of sperm motility and increasing membrane fragility to enable enzyme release from acrosomes.

A

Capacitation

36
Q

The structures that draw an ovulated oocyte into the female duct system are…

A

cilia and fimbriae

37
Q

The usual site of embryo implantation is …

A

the uterus

38
Q

The male homologue of the female clitoris is …

A

the penis

39
Q

Which of the following is correct relative to female anatomy? a) the vaginal orifice is the most dorsal of the three openings in the perineum, b) the urethra is between the vaginal orifice and the anus, c) the anus is between the vaginal orifice and the urethra, d) the urethra is the more ventral of the two orifices in the vulva.

A

d) the urethra is the more ventral of the two orifices in the vulva

40
Q

Secondary sex characteristics are …

A

a result of male or female sex hormones increasing in amount at puberty

41
Q

What produces male sex hormones?

A

interstitial endocrine cells

42
Q

What occurs as a result of non descent of the testes?

A

viable sperm will not be produced

43
Q

The normal diploid number of human chromosomes is

A

46

44
Q

Relative to differences between mitosis and meiosis, choose the statements that apply only to events of meiosis. a) tetrads present, b) produces two daughter cells, c) produces four daughter cells, d) occurs throughout life, e) reduces the chromosomal number by half, f) synapsis and crossover of homologues occur

A

a, c, e, f

45
Q

Hormones that directly regulated the ovarian cycle are …

A

FSH, LH

46
Q

Chemicals in males that inhibit the hypothalamic-pituitary-testicular axis are …

A

inhibin, testosterone

47
Q

Hormone that makes the cervical mucus vicious…

A

progesterone

48
Q

Potentiates the activity of testosterone on spermatogenic cells

A

androgen-binding protein

49
Q

In females, exerts feedback inhibition on the hypothalamus and anterior pituitary

A

estrogens, inhibin, progesterone

50
Q

Stimulates the secretion of testosterone

A

LH

51
Q

The menstrual cycle can be divided into three continuous phases. Starting from the first day of the cycle, their consecutive order is…

A

menstrual, proliferative, secretory

52
Q

Spermatozoa are to seminiferous tubules as oocytes are to …

A

ovarian follicles

53
Q

Which of the following does not add a secretion that makes a major contribution to semen? a) prostate, b) bulbo-urethral glands, c) tested, d) ductus deferens

A

ductus deferens

54
Q

The corpus luteum is formed at the site of …

A

ovulation

55
Q

The sex of the child is determined by …

A

the sex chromosome contained in the sperm

56
Q

FSH is to estrogen as estrogens are to …

A

LH

57
Q

A drug that “reminds the pituitary” to produce gonadotrophin might be useful as ….

A

a fertility drug

58
Q

A period during which a morula forms?

A

cleavage

59
Q

A period when vast amounts of cell migration occur?

A

gastrulation

60
Q

A period when the three embryonic germ layers appear?

A

gastrulation

61
Q

A period during which the blastocyst is formed

A

cleavage

62
Q

Most systems are operational in the fetus by four to six months. Which system is the exception to this generalization, affecting premature infants?

A

the respiratory system

63
Q

The zygote contains chromosomes from …

A

both the mother and father, but half from each

64
Q

The outer layer of the blastocyst, which later attaches to the uterus, is the …

A

trophoblast

65
Q

The fetal membrane that forms the basis of the umbilical cord is the …

A

allantois

66
Q

Kidneys derive from what embryonic structure?

A

intermediate mesoderm

67
Q

The peritoneal cavity derives from what embryonic structure?

A

coelom

68
Q

The pancreas and liver derive from what embryonic structure?

A

endoderm

69
Q

The parietal serosa and dermis derive from what embryonic structure?

A

lateral plate mesoderm

70
Q

The nucleus pulposus derives from what embryonic structure?

A

notochord

71
Q

The hair and epidermis derive from what embryonic structure?

A

ectoderm (not neural tube)

72
Q

The brain derives from what embryonic structure?

A

neural tube

73
Q

The ribs and vertebrae derive from what embryonic structure?

A

sclerotome

74
Q

In the fetus, the ductus arteriosus carries blood from…

A

the pulmonary trunk to the aorta

75
Q

What changes occur in the baby’s cardiovascular system after birth?

A

umbilical arteries and vein become fibroses, pulmonary circulation begins to function, and pressure in the left side of the heart increases, and the ductus venosus becomes obliterated, as does the ductus arteriosus

76
Q

Following delivery of the infant, the delivery of the afterbirth includes the …

A

placenta and attached (torn) fetal membranes

77
Q

The umbilical vein carries …

A

oxygen and food to the fetus

78
Q

The germ layer from which the epidermis and brain are derived is

A

ectoderm

79
Q

Which of the following cannot pass through the placental barriers?

A

blood cells

80
Q

The most important hormone in initiating and maintaining lactation after birth is …

A

prolactin

81
Q

The initial stage of labor, during which the neck of the uterus is stretched, is the ..

A

dilation stage (as opposed to the expulsion and placenta stage)

NAT 502 (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions