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Histology > Quiz on 2.1 & 2.4 > Flashcards

Quiz on 2.1 & 2.4 Flashcards

Quiz on h/o 2.1 & 2.4 Monday 9/30

1
Q

when gametes combine they form a

A

zygote

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2
Q

cell division that makes different types of cells from another cell is called

A

differentation

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3
Q

the hallow ball of cells form the zygote is the

A

blastula

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4
Q

a human 10 weeks of age from conception is

A

an embryo

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5
Q

the embryo will attach and gain nourishment through fingerlike projections into the uterus. this area will develop into the _______ and _______ of the fetus

A

chorion

amnion

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6
Q

the embryo differentiates into three primary ______ layers

A

germ

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7
Q

the future organs and systems built from the three germ lyers are its

A

derivitives

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8
Q

the _________ is the first derivative of the ectoderm on the outer body of the embryo

A

epidermis

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9
Q

ectoderm that has been folded in from the surface and sunk below the surface as a tube from head to tail is called the

A

neural tube

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10
Q

the combination of sperm and egg cells to form a zygote is called ___________ and it usually occurs in the fallopian tube

A

fertilization

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11
Q

_________ is the embedding of the developing embryo into the maternal uterine wall

A

implantation

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12
Q

T/F

the embryo is the group of cells that will differentiate into a human being

A

true

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13
Q

the blastula contains cells that differentiate into the embryo and the _______ and fluid

A

supporting tissue placenta

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14
Q

T/F
following development of the embryo, we begin with a flat plate of cells that fold up into a tube that then folds over as a C-shaped organism

A

true

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15
Q

at first, nourishment for the embryo comes from a temporary fluid-filled sac called the ______ sac

A

yolk

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16
Q

the three embryonic germ layers are

A

mesoderm
ectoderm
endoderm

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17
Q

ectoderm folding in along the length of the embryo is called the ________ groove and it becomes the ________ tube

A

neural

neural

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18
Q

neural tube derives the ________ and ________ of the central nervous system

A

brain

spinal cord

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19
Q

pairs of neural crest cells coming off the spinal cord will become the ________ nerves

A

spinal nerves

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20
Q

T/F

the only place in the embryo where ectoderm will turn into mesoderm is in the tail

A

false

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21
Q

the __________system consisting of the brain, spinal cord, and all the nerves derives from ectoderm

A

nervous

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22
Q

the _______ and _________ systems develop from the endodermial tube

A

respiratory

digestive

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23
Q

cells that bud off of the neural tube in pairs are called

A

neural crest cells

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24
Q

pairs of neural crest cells coming off the brain area will become

A

cranial nerves

facial mesoderm

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25
Q

the beginning portion of the developing endoderm tube is the ____ which is a wide area that forms paired pouches

A

pharynx

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26
Q

the endoderm tube bulges out and bends just beyond the esophagus to form the

A

stomach

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27
Q

paired bumps of mesoderm form along the sides of the neural tube and are called

A

somites

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28
Q

which is not a division of the somite

A

dermis

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29
Q

t/f

the circulatory system derives from paired tubes of endoderm

A

false

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30
Q

paired bumps growing along either side of the embroyo’s head and neck region are called the pharyngeal

A

arches

31
Q

the outside of an arch is covered with ____; the pouch is made of______

A

ectoderm

endoderm

32
Q

t/f

grooves I and IV eventually disappear

A

false

33
Q

which does not derive from pouch I?

A

external auditory meatus

34
Q

what derives the palatine tonsils?

A

pouch II

35
Q

the anterior two thirds of the tongue is called the

A

body

36
Q

t/f

the lateral lingual processes coalesce with the tuberculum impar to form the posterior tongue

A

false

37
Q

the v-shaped row of bumps on the tongue are the _____, and they mark be border between anterior and posterior tongue

A

circumvallate papillae

38
Q

which pharyngeal arch divides into the maxillary and mandibular processes

A

I

39
Q

which process does not come from the frontal process?

A

maxillary process

40
Q

t/f

the globular process becomes the philtrum and the primary palate

A

true

41
Q

two systems that give structure and movement to the body are the ______ and _______ systems, they derive from mesoderm

A

muscle

skeletal

42
Q

the tissue that is “left over” from development with no particular funtion in the adult is called

A

remnant

43
Q

the area of the embryo that will become the future mouth is called the _____. It is covered for a short time by the ______ membrane

A

stomodem

buccopharyngeal

44
Q

the cartilage of arch I is called ______ cartilage

A

meckels

45
Q

the ossicles come from the cartilage of arch I (Meckel’s) and arch II, also known as _____ cartilage

A

reichets

46
Q

how many processes come together to form the tongue

A

6

47
Q

the remnant of the developing thyroid gland left on the surface of the tongue is called

A

foramen cecum

48
Q

the facial process that becomes the forehead is called the ______ process

A

frontonasal

49
Q

which processes coalesce to become the hard palate

A

primary palate

50
Q

do the two maxillary processes ever come together?

A

yes

51
Q

if facial processes do not come together properly, a _____ lip or palate may result

A

cleft

52
Q

the temporary “jawbone” in the mandibular arch is known as

A

meckel’s cartilage

53
Q

Germ layer that derives digestive system

A

endoderm

54
Q

Germ layer that derives thyroid gland

A

endoderm

55
Q

Germ layer that derives epidermis

A

ectoderm

56
Q

Germ layer that derives bones

A

mesoderm

57
Q

Germ layer that derives brain

A

ectoderm

58
Q

Germ layer that derives muscle

A

mesoderm

59
Q

Germ layer that derives respiratory system

A

endoderm

60
Q

Germ layer that derives lining of anterior two thirds of tongue

A

ectoderm

61
Q

Arch/pouch/groove? eustachian tube

A

pouch I

62
Q

Arch/pouch/groove? parathyroid glands

A

pouches III and IV

63
Q

Arch/pouch/groove? Meckel’s cartilage

A

arch I

64
Q

Arch/pouch/groove? palatine tonsils

A

pouch II

65
Q

Arch/pouch/groove? Eardrum

A

groove I and pouch I

66
Q

Arch/pouch/groove? External meatus

A

groove I

67
Q

What becomes cheeks

A

maxillary

68
Q

What becomes forehead

A

frontal

69
Q

What becomes mandible

A

mandibular

70
Q

What becomes side of nose

A

lateral nasal

71
Q

What becomes philtrum

A

median nasal/globular

72
Q

What becomes sides of palate

A

maxillary

73
Q

What becomes front of palate

A

globular

Histology (8 decks)

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