What are the maternal and fetal contributions to the placenta?

What will be an ideal response?


The fetal portion of the placenta is formed by the chorionic villi, and the maternal portion of the placenta is formed by the decidua basalis of the endometrium of the uterus.

Anatomy & Physiology

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The only muscle that possesses both voluntary and involuntary abilities is the ________.

A. heart B. lung C. diaphragm D. brain

Anatomy & Physiology

The body uses feedback loops to maintain homeostasis. The response that opposes an action is known as a(n) ________.

A. depressing feedback loop B. negative feedback loop C. positive feedback loop D. affirmative feedback loop

Anatomy & Physiology

Endocrine disruptors are environmental chemicals, which, if people and other animals are exposed, can have hormone-mimicking or hormone -blocking effects. These chemicals are used in industries and in homes and are associated with such commonly used products as pesticides and herbicides, plastic food containers and baby bottles. Those that mimic or block sex steroids are of special concern,

because they are present in household plastics and are fat-soluble, thus easily stored in fatty tissue of the body and can affect a developing fetus. Research is ongoing and results are controversial, but these chemicals have been associated with: What will be an ideal response?

Anatomy & Physiology

Which type of movement is found in the jaw?

a. pronation b. protraction c. opposition d. reposition

Anatomy & Physiology