Match each term with its definition or description.
-Primary germ layer that forms muscles
A)Zygote
B)Morula
C)Blastocyst
D)Placenta
E)Fetus
F)Embryo
G)Ectoderm
H)Mesoderm
I)Endoderm
J)Histogenesis
K)Amniotic cavity
L)Implantation
M)Organogenesis
N)Fertilization
O)Yolk sac

Question

Quizplus · Accepted Answer

The mesoderm is the primary germ layer that forms muscles, along with other structures such as bones, cartilage, and blood vessels.

Answer: G
 The ectoderm is the primary germ layer that forms the skin, hair, nails, and nervous system.

Answer: I
 The endoderm is the primary germ layer that forms the lining of the digestive tract, respiratory system, and other internal organs.

Answer: M
 Organogenesis is the process by which the three primary germ layers differentiate further into specific organs and organ systems.

Answer: N
 Fertilization is the process by which a sperm cell and an egg cell fuse together to form a zygote, which will develop into an embryo.

Answer: L
 Implantation is the process by which the blastocyst embeds itself into the uterine lining, where it will continue to develop into an embryo.

Answer: K
 The amniotic cavity is a fluid-filled sac that surrounds and protects the developing embryo/fetus.

Answer: O
 The yolk sac is a membrane that is formed during embryonic development and plays a role in providing nutrients to the developing embryo before the placenta is fully functional.

Match Each Term with Its Definition or Description