Development

Question 1

Women is secreting endometrium, what cycle is she in?

Answer 1

Luteal

Question 2

Which organ doesn’t make estrogen?

Answer 2

Adrenal medulla (NOT adrenal cortex)
(secretes catecholamines )

Question 3

What is an intracellular receptor?

Answer 3

Estrogen

includes steroid, estrogen, progesterone, and Vitamin D derivatives

Question 4

Which of the following acts as nuclear receptor?

Answer 4

Vitamin D

endogenous hormones, vitamin A & D

Question 5

What hormone promotes spermatogenesis?

Answer 5

FSH

promote follicle development in female & stimulate Sertoli cells to produce androgen-bind protein

Question 6

What promotes testosterone production in males & estrogen in females?

Answer 6

LH

Question 7

Granulosa cells in females are similar to _________in males

Answer 7

Sertoli Cells

Question 8

Where is testosterone made?

Which is not a seminiferous tubules?

Answer 8

Leydig cells

Question 9

Where is sperm stored/ matured?

Answer 9

epididmyis

Question 10

What sustains Corpus Luteum after 1st trimester?

Answer 10

hCG

hCG is made by placenta –> allows corpus luteum to maintain high progesterone

Question 11

Which Ig is transferred from mother to fetus?

Answer 11

IgG via placenta

Question 12

Which cell cycle is immediately after fertilization?

Answer 12

Meiosis 2

Question 13

What is NOT transcriptionally active?

Answer 13

Heterochromatin (highly condensed)

Question 14

Which phase is most variable in duration of cell cycle?

Answer 14

G1

Question 15

Which stage is DNA synthesis in?

Histones are synthesized in which phase?

Answer 15

S

Question 16

Hepatocytes form what type of embryonic tissue?

Answer 16

Endoderm

Question 17

What are included in endoderm/

Answer 17

GI, Respiratory tract, thyroid, thymus, endocrine glands & organs, auditory system, urinary system, liver, pancreas

Question 18

What are included in ectoderm?

Answer 18

Epithelium of skin, nervous tissues

Question 19

What are included in the mesoderm?

Answer 19

c.t, bone, cartilage, blood cells, all muscles, body cavities, & some cardiovascular & urinary systems
(ureter in kidney)

Question 20

What are symptoms of Down syndrome?

Answer 20

Wide neck, flat nose, and small mouth

Question 21

Genetic make up of Klinefelter

Answer 21

47; XXY

Question 22

Genetic make up for Turner’s

Answer 22

45: XO

Question 23

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

Answer 23

Blastula

Question 24

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

Answer 24

Blastocyst

Question 25

The ligamentum arteriosum is a remnant of?

Answer 25

Fetal left ductus arteriosus

Question 26

What goes with ligamentum arteriosum?

Answer 26

Left recurrent layrngeal nerve

Question 27

Ligamentum venosum comes from?

Answer 27

Ductus venosus | Shuns left umbilical vein blood directly to the inferior vena cava, bypass liver

Question 28

What is the remnant of umbilical vein on the liver?

Answer 28

Ligamentum teres

Question 29

What structure is present in fetal heart that allows blood to pass from right to left atrium?

Answer 29

Fossa ovalis

Question 30

Where is crista termialis located? | Crista terminalis: junction between sinus venous & heart of embryo

Answer 30

Right atrium

Question 31

Anomalous development of external acoustic meatus is a problem with?

Answer 31

1st pharyngeal cleft (1st: incus/malleus 2N: stapes)

Question 32

What does Meckel's cartilage make?

Answer 32

Malleus & Incus: 1st Brachial Arch

Question 33

Where is mandible in relation to Meckel's cartilage in development?

Answer 33

Lateral to it

Question 34

Which arch does the hyoid bone develop from?

Answer 34

2ne & 3rd

Question 35

Which arch does the buccinator arise from?

Answer 35

2nd

Question 36

Which arch makes the Reichert Cartilage?

Answer 36

2nd

Question 37

Which pouch is the parathyroid from?

Answer 37

3rd pouch

Question 38

Thymus gland is from which brachial pouches?

Answer 38

3rd and 4th

Question 39

What develops the Rathke's pouch?

Answer 39

Anterior Pituitary `

Question 40

Which 2 process forms the philtrum of the lip?

Answer 40

Medial nasal process & maxillary process

Question 41

Unilateral cleft lip is caused by?

Answer 41

Maxillary prominence on the affected side joining with the merged medial nasal prominence

Question 42

What forms the palate?

Answer 42

Fusion of intermaxillary & palatal shelves`

Question 43

Macrostomia is a failure of fusion of?

Answer 43

Maxillary & mandible process

Question 44

what structure in the branchial arches failed if baby has bifurcated tongue?

Answer 44

Tuberculum impar

Question 45

CN 12 comes form?

Answer 45

occipital somites | NOT pharyngeal pouches

Question 46

What comes from upper layer of neural tube?

Answer 46

Ascending Sensory Pathway

Question 47

Where is the origin of pons & medula?

Answer 47

Rhombencephalon | Hindbrain: pon, medulla & cerebellum

Question 48

What is the pons derived from?

Answer 48

Metencephalon