List and briefly characterize the three trimesters of gestation

What will be an ideal response?


For convenience, we think of the gestation period as consisting of three integrated trimesters, each lasting 3 months in duration: (1 ) The first trimester is the period of embryonic and early fetal development. During this period, the rudiments of all the major organ systems appear. (2 ) The second trimester is dominated by the development of organs and organ systems, a process that nears completion by the end of the sixth month. During this period, body shape and proportions change; by the end of this trimester, the fetus looks distinctively human. (3 ) The third trimester is characterized by the largest fetal weight gain and deposition of adipose tissue. Early in the third trimester, most of the fetus's major organ systems become fully functional.

Anatomy & Physiology

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Answer the following statement true (T) or false (F)

Anatomy & Physiology

Which of the diagrams in the figure represents a ligand-gated channel?

a) A b) B c) C d) D

Anatomy & Physiology

Spongy bone makes up less than half of total bone mass, and is located internal to compact bone.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Which disorder is not a type of cancer?

A. Hodgkin lymphoma B. Elephantiasis C. Multiple myeloma D. Non-Hodgkin lymphoma

Anatomy & Physiology