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Flashcards in Embryology, etc. Deck (87)
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Hair-like papilla that provides tactile sensation?

Filiform

1

Mushroom like papilla that perceive sweet and salt tastes?

Fungiform

2

Leaf like papilla which perceives sour taste?

Foliate

3

8-10 papilla found just anterior to the terminal sulcus and perceives bitter taste?

Circumvallate

4

Lingual papilla related to Von Ebner's gland?

Circumvallate

5

Taste bud for synthesis and secretion of pore substance?

Type 1 or taste cells or dark cells

6

Taste buds with unknown function?

Type 2 or sustentacular cells or light cells

7

Least numerous taste buds which are the actual receptors of taste?

Type 3 or intermediate cells

8

Reserved taste buds?

Type 4 or basal cells

9

Invagination of the oral epithelium?

Vestibular lamina

10

3 stages of embryology?

  • Proliferative period
  • Embryonic period
  • Fetal period

11

Period from fertilization to 2nd week?

Proliferative

12

Period from 3rd week to 8th week?

Embryonic

13

Period from 8th week to birth?

Fetal period

14

Life span of sperm cells once they enter the female reproductive system?

48 hrs

15

How long does the ovum wait for fertilization?

24 hrs

16

A process where the glycoprotein coat and seminal plasma protein are removed from the spermatozoan head?

Capacitation

17

Where does capacitation occurs?

Uterus

18

Released by the acrosome to penetrate the oocyte barriers? (2)

  • Hyaluronidase
  • Acrosin

19

Structures that the spermatozoa must penetrate during fertilization? (3)

  1. corona radiata
  2. zona pellucida
  3. occyte membrane

20

It determines the chromosomal sex?

Spermatozoa

21

Any of the 2 cells formed by the cleavage of the fertilized egg.

Blastomere

22

Spherical embryonic mass of blastomeres?

Morula

23

Sphere of cells enclosing the inner mass of cells?

Trophoblast

24

Fluid filled cavity in the blastocyst?

Blastocoel

25

It is the one that attaches to the uterus?

Blastocyst

26

a. Gives rise to the embryo?

b. Gives rise to the placenta?

Inner cell mass/Embryoblast

Trophoblast

27

The amniotic cavity is lined with ______ while the yolk sac is lined with ______?

Ectoderm

Endoderm

28

Which one is bigger: amniotic cavity or yolk sac?

Yolk sac

29

Produces HCG?

Syncytiotrophoblast