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Packet Info > REPRODUCTIVE & DEVELOPMENT > Flashcards

REPRODUCTIVE & DEVELOPMENT Flashcards

1
Q

female secreting endometrium- what cycle is she in?

A

luteal

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2
Q

Which organ doesn’t make estrogen?

a. graafian follicle
b. corpus luteum
c. adrenal meduall
d. theca interna

A

c. adrenal meduall

adrenal CORTEX secretes estrogen, the medulla secretes catecholamine

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3
Q

which is an intracellular receptor?

A

estrogen

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4
Q

what does an intracellular receptor include?

A

steroid, estrogen, progesterone, vitamin D derivatives

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5
Q

which of the following acts as nuclear receptor?

A

Vitamin D

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6
Q

nuclear receptors include what?

A

endogenous hormones, Vitamin A & D

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7
Q

What hormone promotes spermatogenesis?

A

FSH

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8
Q

FSH promotes follicle development in females & stimulates what?

A

stimulates Sertoli cells to produce androgen-bind protein, which stimulates spermatogenesis

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9
Q

LH promotes what in males and what in females?

A

promotes testosterone in males

promotes estrogen production in females

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10
Q

Granulosa cells of females are similar to what cells found in males?

A

Sertoli Cells

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11
Q

Sertoli cells help with ________ in the ___________ tubules, activated by FSH

A

help with spermatogenesis in the seminiferous tubules, activated by FSH

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12
Q

Where is testosterone made?

A

Leydig cells

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13
Q

Which is not in seminiferous tubules?

A

Leydig cell (found adjacent to seminiferous tubules in interstitial tissues, regulated by LH)

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14
Q

Sperm stored/ mature in ?

A

epididymis

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15
Q

What sustains the corpus luteum after the 1st trimester

A

hCG

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16
Q

Human chorionic gonadotropin made by placenta allows what?

A

allows the corpus luteum to maintain high progesterone

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17
Q

Immunoglobulin transfer from mother to fetus

A

IgG via placenta

18
Q

cell cycle immediately after fertilization

A

Meiosis II

19
Q

What is not transcriptionally active?

A

Heterochormatin (highly condensed, still zipped up in chromosome)

20
Q

What phase is most variable in duration of the cell cycle?

A

G1

21
Q

What stage is DNA synthesis in the cell cycle?

A

S

22
Q

Histones are synthesized in which phase of the cell cycle?

A

S phase

23
Q

Hepatocytes from what embryonic tissue

A

endoderm

24
Q

Describe endoderm?

A

gastrointestinal tract, respiratory tract, thyroid, thymus, endocrine glands & organs, auditory system, Urinary system, Liver, Pancreas

25
Q

Describe Ectoderm

A

epithelium of skin, nervous tissue

26
Q

Describe Mesoderm

A

connective tissue, bone, cartilage, blood cells, all muscles (cardiac, smooth, skeletal), body cavities and some cardiovascular and urinary systems

27
Q

Ureter in kidney

A

mesoderm

28
Q

what are symptoms of Trisomy 21 (down syndrome)?

A

Wide neck, Flat nose, small mouth

29
Q

Klinefelter syndrome

A

47: XXY

30
Q

Turners Syndrome

A

45: XO

31
Q

What is the name of the cellular mass after fertilization but before implantation?

A

blastula

32
Q

Which stage of the zygote does implantation on the uterus occur?

A

Blastocyst

33
Q

The ligamentum arteriosum is a remnant of what embryological structure?

A

fetal left ductus arteriosus

34
Q

What does the Ductus arteriosus do?

A

connects the pulmonary artery to the descending aorta to bypass the fetal lungs, doesn’t disappear immediately after birth

35
Q

What goes with ligamentum arteriosum?

A

left recurrent laryngeal N

36
Q

Ligamentum venosum comes from what?

A

Ductus venosus

37
Q

Shunts left umbilical vein blood directly to the ?

A

inferior vena cava, bypass liver

38
Q

what is the ligamentum teres?

A

remnant of umbilical vein on the liver

39
Q

Structure present in fetal heart that allows blood to pass from right to left atrium?

A

Fossa ovalis (remnant of fetal foramen ovale)

40
Q

Crista terminalis is located where?

A

on the Right Atrium

41
Q

It is the junction between the sinus venosus & __________in the embryo

A

sinus & venosus & the heart in the embryo

Packet Info (34 decks)

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