
To describe:
The human embryonic development from fertilization to birth.
Introduction:
The development of humans is controlled in a manner by the same mechanisms that are responsible for controlling the other animal’s development. Thus, the development of humans strongly depicts the evolutionary heritage.
To determine:
The structure and function of the placenta.
Introduction:
At the time of the first few days after implantation, there is the utilization of nutrients from the uterus endometrium directly. Thus, during the following week, there is the initiation of the development of placenta from interlocking structures that are produced by the endometrium and embryo.
To determine
The name and description of the hormones involved in the production of milk and secretion.
Introduction:
At the time of pregnancy, there is the production of large quantities of hormones by the placenta. These hormones are also responsible for producing the milk in breasts and their secretion.

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Chapter 42 Solutions
Biology
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- Choose a catecholamine neurotransmitter and describe/draw the components of the synapse important for its signaling including synthesis, packaging into vesicles, receptors, transporters/degradative enzymes. Describe 2 drugs that can act on this system.arrow_forwardThe following figure is from Caterina et al. The capsaicin receptor: a heat activated ion channel in the pain pathway. Nature, 1997. Black boxes indicate capsaicin, white circles indicate resinferatoxin. a) Which has a higher potency? b) Which is has a higher efficacy? c) What is the approximate Kd of capsaicin in uM? (you can round to the nearest power of 10)arrow_forwardWhat is the rate-limiting-step for serotonin synthesis?arrow_forward
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