Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Embryology > Fetus > Flashcards

Fetus Flashcards

(91 cards)

Start Studying
0
Q

Prenatal is from __ to ___.

A

Fertilization until birth

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

How many cells in zygote

A

1

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

Period until 3rd week

A

Germinal period

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

4th-8th week

A

Embryonic

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

3rd month to termination of pregnancy

A

Fetal

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

Process of repeated mitotic division

A

Cleavage division

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

Cleavage gives rise to

A

Blastomere

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

Blastomere form compact ball called

A

Morula

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

Inner cell mass

A

Morula crnter

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

Morula continues to divide and forms

A

Blastocele

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

Stage of blastocele

A

Blastocyst

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

Outer and inner cell mass are

A

Trophoblast embryoblast

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

Blastocyst attaches to

A

Endometrium

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

Endometrium becomes

A

Decidua

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

Decidua vera

A

Decidua parietalis

Decidua capsularis

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

Produces progesterone

A

Corpus luteum

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

Stimulates secretion of endometrial glands

A

Progesterone

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

Where cleavage of placental separation occur

A

Functional layer

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

Forms surface of decidua

A

Superficial compact layer

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

Decidua underneath blastocyst

A

Basal decidua

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

Thin superficial layer of decidua covering ovum

A

Capsular decidua

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

Ectoderm forms

A

Skin and nervous system

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

Mesoderm forms

A

Bone muscle heart blood vessel

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

Endoderm forms

A

Mucus membrane and glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Three germ layers
Embryonic plates
25
Trophoblast becomes
Placenta chorion
26
Embryoblast becomes
Fetus amnion umbilical cord
27
Precursor of placenta
Fetal part from chorion frondosum | Maternal part from decidua basalis
28
Small extra love is present in placenta
Succenturate lobe of placenta
29
Opaque ring on fetus surface
Circumvallate placenta
30
Umbilical close to margin of placenta
Battle dore insertion of cord
31
Cord is inserted far from placenta
Velamentous insertion of chord
32
Implantation in lower part of uterine cavity
Placenta previa
33
Implantation complete
2nd week
34
Primitive streak appears at what day
15th
35
formed by ectodermal cell
Primitive streak
36
Future spinal cord
Neural groove
37
Future vertebra(paired cuboidal bodies)
Somites
38
Primitive heart tube
3rd week
39
Folding of embryo | Heart further develops
4th week
40
Branchial arches Neural tube closes Otic pit Arm buds and tail
4th week
41
``` Pulmonary primordium Hepatic plate Cystic diverticulum Spleen Uretric buds ```
4th
42
Urorectal septum | Spinal cord differentiate
4th
43
Measurement of embryo on 5th week
8mm
44
``` Lens pits optic cup Nasal pit Brain Umbilical cord Leg buds and hands as paddles ```
5th
45
First heart beat
5th week
46
Measurement of embryo at week 6
13 mm
47
``` Lungs Lengthening of arms and legs Digits Gonadal ridge Nostrils ```
6
48
Lympathic system | Intestine and pancreas grow
6th week
49
Measurement of embryo at week 7
18 mm
50
Nipples and hair follicles Elbow and toes location Teeth All essential organ formation
7th week
51
``` Cartilage and bones Tongue Intestines to abdomen Facial features Sex diff ```
8th week
52
Week 8
30 mm 1g
53
Complete placenta umbi cord and fetal membranes
Fetal period
54
Human Functional placenta Genitalia characteristics
Week 10
55
Week 9
50 mm 8g
56
``` Head =half crown heel Broad face Eyes separated widely Low set ears Fused eye lids MOVEMENT joints formed ```
9
57
``` Well-diff genitals Hair and nails Fingers and toes sep Amniotic fluid accum Kidney function ```
11
58
Week 12
8cm 25
59
Vocal cords Audile heart beat Active pancreas RBS in liver
12
60
Rapid growth Inhale exhale Longer neck Hands functional
13
61
``` Transparent fetal skin More muscles and bones Thyroid gland Hormones Ovaries to pelvis f abdomen Lanugo ```
14
62
``` Sucking Active mov'ts Mid ear bones Prim ovarian follicles Meconium Functioning liv and pan ```
15-16
63
Sucking swallowing blinking
End of 16
64
``` Lanugo entire body Eyebrows eyelash QUICKENING Nails Vernix caseosa Brown fat heart beat stet Immunity trans ```
17-20
65
Uterus formed | Canalization
18th
66
Testes descends
20
67
Weight gain REM WBCs Amnio swallowed
21
68
Eye lids Eye brows Bilirubin by liver
22
69
Body proportion | Hearing
23
70
VIABLE light Taste buds Lung surfactant
24
71
Week 24
28-36cm 550g
72
Spine joints lig rings Lungs blood vessels Nostrils open
25
73
Week 26
35-38 cm 1200g
74
Brains develops rapidly Retina form Air sacs Eye lids open
26
75
Response to sound CNS mature Lungs indie Retina formed
27
76
Week 30-34
33-34cm 1600g
77
Amnio decrease Lanugo disappear Marrow RBC
30-34
78
Physical growth slows down | Bones developed
31
79
M down S up | Senses thalamic
32
80
Reflex | Skull quite pliable
33
81
Testicles descend to scrotum Open close eyes Head down position
34
82
35-40
40-46cm | 1800-1900g
83
No lanugo | Takes space
35-40
84
Lightening Pink skin Kidneys
36
85
Full term | Grasp reflex
37
86
37
42-48cm | 1800-2700g
87
Birth position More meconium Think hair Same size
38
88
More surfactant More fat 50cm 3287g
39
89
No vernix
15%fat | Breast buds
90
Week 40
51cm 3400g

Embryology (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions