Embryology - High Yield (Fa)

Front 1

week:

fetal movement

Back 1

8

Front 2

week:

genitalia have male/female characterisitcs

Back 2

10

Front 3

cells from the primitive streak give rise to

Back 3

endoderm (early)
mesoderm (late)

Front 4

teratogen:

iodide (2)

Back 4

congenital goiter

hypothyroidism

Front 5

teratogen:

tobacco(3)

Back 5

placental problems

preterm labor

ADHD

Front 6

bulbus cordis gives rise to (2)

Back 6

smooth part of right ventricle

smooth part of left ventricle

Front 7

left horn of sinus venosus gives rise to

Back 7

coronary sinus

Front 8

right horn of sinus venosus gives rise to

Back 8

smooth part of right atrium

Front 9

right common cardinal vein and right anterior cardinal vein give rise to

Back 9

superior vena cava

Front 10

postnatal structure:

umbilicaL arteries

Back 10

mediaL umbilical ligaments

Front 11

postnatal structure:

allaNtois/urachus

Back 11

mediaN umbilical ligament

Front 12

1st aortic arch derivative

Back 12

maxillary artery

(1st arch is maximal)

Front 13

2nd aortic arch derivatives (2)

Back 13

stapedial artery

hyoid artery

(second arch stapedius)

Front 14

3rd aortic arch derivatives (2)

Back 14

common carotid artery

internal carotid artery (proximal part)

(C is 3rd letter of the alphabet)

Front 15

4th aortic arch derivatives
- right
- left

Back 15

right:
right subclavian artery (proximal part)

left:
aortic arch

(4 limbs/systemic)

Front 16

6th aortic arch derivatives
- right
- left (2)

Back 16

right:
right pulmonary arteries (proximal parts)

left:
left pulmonary arteries (proximal parts)
ductus arteriosus

(pulmonary)

Front 17

branchial clefts are derived from

Back 17

ectoderm

Front 18

branchial arches are derived from (2)

Back 18

mesoderm

neural crest cells

Front 19

branchial pouches are derived from

Back 19

endoderm

Front 20

branchial arch derivate:

mandible

Back 20

1

Front 21

branchial arch derivate:

malleus

Back 21

1

Front 22

branchial arch derivate:

incus

Back 22

1

Front 23

branchial arch derivate:

sphenomandibular ligament

Back 23

1

Front 24

branchial arch derivate:

muscles of mastication (temporalis, masseter, medial pterygoid, lateral pterygoid)

Back 24

1

Front 25

branchial arch derivate:

mylohyoid muscle

Back 25

1

Front 26

branchial arch derivate:

anterior belly of digastric muscle

Back 26

1

Front 27

branchial arch derivate:

tensor tympani muscle

Back 27

1

Front 28

branchial arch derivate:

tensor veli palatini muscle

Back 28

1

Front 29

branchial arch derivate:

anterior 2/3's of the tongue

Back 29

1

Front 30

branchial arch derivate:

CNV2 (maxillary nerve)

Back 30

1

Front 31

branchial arch derivate:

CNV3 (mandibular nerve)

Back 31

1

Front 32

branchial arch derivate:

stapes

Back 32

2

Front 33

branchial arch derivate:

styloid process

Back 33

2

Front 34

branchial arch derivate:

lessser horn of hyoid

Back 34

2

Front 35

branchial arch derivate:

stylohyoid ligament

Back 35

2

Front 36

branchial arch derivate:

muscles of facial expression

Back 36

2

Front 37

branchial arch derivate:

stapedius muscle

Back 37

2

Front 38

branchial arch derivate:

stylohyoid muscle

Back 38

2

Front 39

branchial arch derivate:

posterior belly of digastric muscle

Back 39

2

Front 40

branchial arch derivate:

CNVII (facial nerve)

Back 40

2

Front 41

branchial arch derivate:

greater horn of hyoid

Back 41

3

Front 42

branchial arch derivate:

stylopharyngeus muscle

Back 42

3

Front 43

branchial arch derivate:

CNIX (glossopharyngeal nerve)

Back 43

3

Front 44

branchial arch derivates:

thyroid cartilage

Back 44

4-6

Front 45

branchial arch derivates:

cricoid cartilage

Back 45

4-6

Front 46

branchial arch derivates:

arytenoid cartilages

Back 46

4-6

Front 47

branchial arch derivates:

corniculate cartilage

Back 47

4-6

Front 48

branchial arch derivates:

cuneiform cartilage

Back 48

4-6

Front 49

branchial arch derivate:

pharyngeal constrictor muscles

Back 49

4

Front 50

branchial arch derivate:

cricothyroid muscle

Back 50

4

Front 51

branchial arch derivate:

levator veli palatini muscle

Back 51

4

Front 52

branchial arch derivate:

intrinsic muscles of the larynx

Back 52

6

Front 53

branchial arch derivate:

superior laryngeal branch of CNX

Back 53

4

Front 54

branchial arch derivate:

recurrent laryngeal branch of CNX

Back 54

6

Front 55

anterior 2/3's of tongue:

sensation

Back 55

CNV3 (mandibular nerve)

Front 56

lesion of solitary nucleus would result in

Back 56

loss of taste (CNVII, IX, and X arise form the solitary nucleus)

Front 57

branchial cleft derivate:

external auditory meatus

Back 57

1

Front 58

branchial cleft derivates:

temporary cervical sinuses

Back 58

2-4 (later obliterated by 2nd arch mesenchyme)

Front 59

persistent cervical sinus can lead to:
- lateral neck
- midline of neck

Back 59

branchial cyst

thryoglossal duct cyst

Front 60

eardrum and eustachian tube arise from

Back 60

1st branchial membrane

Front 61

branchial pouch derivative:

middle ear cavity

Back 61

1

Front 62

branchial pouch derivative:

eustachian tube

Back 62

1

Front 63

branchial pouch derivative:

mastoid air cells

Back 63

1

Front 64

branchial pouch derivative:

epithelial lining of palatine tonsil

Back 64

2

Front 65

branchial pouch derivative(dorsal wings):

inferior parathyroid glands

Back 65

3

Front 66

branchial pouch derivative (vental wings):

thymus

Back 66

3

Front 67

branchial pouch derivative:

superior parathyroid glands

Back 67

4

Front 68

cleft lip is due to failure of fusion of

Back 68

maxillary and medial nasal processes

Front 69

cleft palate is due to failure of fusion of

Back 69

lateral palatine processes, the nasal septum, and/or median palatine process

Front 70

diaphragm is derived from (4)

Back 70

septum transversum
pleuroperitoneal folds
body wall
dorsal mesentery of esophagus

(Several Parts Build Diaphragm)

Front 71

foregut territory

Back 71

pharynx --> duodenum

Front 72

midgut territory

Back 72

duodenum --> transverse colon

Front 73

hingut territory

Back 73

distal transverse colon --> rectum

Front 74

ventral pancreatic bud gives rise to (3)

Back 74

pancreatic head

uncinate process (lower 1/2 of pancreatic head)

main pancreatic duct

(dorsal pancreatic bud gives rise to rest of pancreas)

Front 75

kidney devlopment

Back 75

pronephros --> mesonephros --> metanephros

Front 76

seminal vesicles derived from

Back 76

mesonephric (Wolffian) duct

SEED

Front 77

epididymis derived from

Back 77

mesonephric (Wolffian) duct

SEED

Front 78

ejaculatory duct derived from

Back 78

mesonephric (Wolffian) duct

SEED

Front 79

ductus (vas) deferens derived from

Back 79

mesonephric (Wolffian) duct

SEED

Front 80

fallopian tubes derived from

Back 80

paramesonephric (Mullerian) duct

Front 81

uterus derived from

Back 81

paramesonephric (Mullerian) duct

Front 82

part of the vagina derived from

Back 82

paramesonephric (Mullerian) duct

Front 83

formation of male genitalia stimulated by

Back 83

DHT

Front 84

formation of female genitalia stimulated by

Back 84

estrogen

Front 85

males:

genital tubercle forms

Back 85

glans penis

Front 86

females:

genital tubercle forms

Back 86

glans clitoris

Front 87

males:

urogenital sinus forms (3)

Back 87

corpus spongiosum

bulbourethral (Cowpers) glands

prostate gland

Front 88

females:

urogenital sinus forms (3)

Back 88

vestibular bulbs

Bartholin glands (greater vestibular glands of Bartholin)

Skenes glands (urethral and paraurethral glands of Skene)

Front 89

males:

urogenital folds form

Back 89

ventral shaft of penis

Front 90

females:

urogenital folds form

Back 90

labia minora

Front 91

males:

labioscrotal swelling forms

Back 91

scrotum

Front 92

females:

labioscrotal swelling form

Back 92

labia majora