Embryology MC + Content Review

During which period of development does organogenesis begin?

a) cleavage

b) embryonic period

c) pre-embryonic period

d) fetal period

embryonic period

Which process occurs at about day 3 after fertilization, and is where the cells of the pre-embryo adhere tightly to each other and increase their surface contact?

a) implantation

b) compaction

c) gastrulation

d) neurulation

compaction

What state of development is part of embryogenesis?

a) fertilization

b) gastrulation

c) fetal period

d) gametogenesis

gastrulation

When does capacitation occur?

a) when sperm move through the uterine tube

b) when sperm are mixed with secretions from the testes

c) when sperm are deposited within the vagina

d) when sperm are traveling through the penis

when sperm are deposited within the vagina

What term is used to describe the beginning of the formation of the brain and spinal cord?

a) cephalocaudal folding

b) organogenesis

c) neurulation

d) gastrulation

neurulation

Compare and contrast meiosis and mitosis with respect to cell type, number of cells products, and numbers of chromosomes in the daughter cells

• both involved in making new cells

• Mitosis: makes body cells (skin cells, stomach cells)

  → start cell: skin cell

  → PMAT

  → forming 2 identical daughter cells (46 chromosomes)

• Meiosis: makes gametes (sperm cells, egg cell)

  → start cell: primary spermatocyte (males) or primary oocyte (female)

  → goes through PMAT twice

  → forming 4 cells (23 chromosomes)

Pre-embryotic period

look at table

embryonic period

look at the table

Fetal Stage Development 1.0

Fetal Stage development 2.0