Embryology

Question 1

Cleavage

Answer 1

Rapid mitotic cell division without changing total size.

Question 2

Gastrulation

Answer 2

Generation of three distinct cell layers: Ecto, Endo, Meso.

Question 3

Integumentary System is derived from —-derm

Answer 3

Ectoderm

Question 4

Lens of the eye is derived from —-derm

Answer 4

Ectoderm

Question 5

Nervous System is derived from —-derm

Answer 5

Ectoderm

Question 6

Musculoskeletal System is derived from —derm

Answer 6

Mesoderm

Question 7

Circulatory System is derived from —derm

Answer 7

Mesoderm

Question 8

Excretory System is derived from –derm

Answer 8

Mesoderm

Question 9

Gonads are derived from —-derm

Answer 9

Mesoderm

Question 10

Muscular and connective tissue coats of the digestive and respiratory systems are derived from —-derm

Answer 10

Mesoderm

Question 11

Epithelial linings of digestive and respiratory tracts are derived from —-derm

Answer 11

Endoderm

Question 12

Lungs are derived from —-derm

Answer 12

Endoderm

Question 13

Parts of the Liver, Pacreas, Thyroid are derived from —-derm

Answer 13

Endoderm

Question 14

Bladder, distal urinary and reproductive tracts are derived from —-derm

Answer 14

Endoderm

Question 15

Indeterminate cleavage results in cells that can

Answer 15

can still develop into complete organisms

Question 16

First, Second, Third cleavage occurs at X,Y,Z hours postfertilization

Answer 16

32,60,72 hours postfertilization

Question 17

Notochord

Answer 17

Rod of mesodermal cells

Question 18

Gestation

Answer 18

Period of development until birth = pregnancy

Question 19

First Trimester results in…

Answer 19

Major organs develop.

Question 20

Second Trimester results in…

Answer 20

fetus begins to resemble human, moves.

Question 21

Third Trimester results in…

Answer 21

Antibodies transported by highly selective active transport from mother to fetus. Growth rate slows.