BPM 1 - FTM - DLA 5 - Early Embryology Questions With Complete Solutions

BPM 1 - FTM - DLA 5 - Early Embryology
Questions With Complete Solutions

All of nothing period = ? Correct Answers During
week 3, if anything harms the developing embryo,
it will be lost entirely.

By end of week 2, what has developed? Correct
Answers - amniotic cavity is formed
- chorion & chorionic cavity is formed
- primary umbilical vesicle is formed ( & regresses)
- secondary umbilical vesicle develops
- bilaminar embryonic disc develops
- prechordal plate develops

Ectoderm gives rise to ? Correct Answers 1)
Epidermis, nails, sweat glands, lens, anterior
pituitary
2) sensory cells of the ear & olfactory epithelium,
lower anal canal

Neuroectoderm

Embryogenesis Correct Answers Development of
an embryo from male & female gametes to a fully
formed embryo

Embryogenesis - Day 1 Correct Answers
Fertilization

, Embryogenesis - Day 1-6 Correct Answers
Cleavage

Embryogenesis - Day 10 - 14 Correct Answers
Formation of the bilaminar disc

Embryogenesis - Day 6-10 Correct Answers
Implantation

Embryogenesis - Week 2-3 Correct Answers
Gastrulation

Embryogenesis - Weeks 4-8 Correct Answers
Organogenesis

Endoderm gives rise to Correct Answers 1)
epithelial lining of gut & associated glands (liver,
pancreas, gall bladder)
2) epithelial lining of the respiratory organs
(trachea, bronchus, lungs)
3) tonsils
4) middle ear & pharyngotympanic tube
5) parathyroid & thyroid glands
6) epithelial lining of bladder, most of urethra, &
lower vaginal canal

Epiblast gives rise to: Correct Answers Endoderm
Mesoderm
Ectoderm