A positive feedback loop is necessary in which of the following situations?
A) Childbirth B) Bleeding
C) Coughing D) Blood pressure
A
Anatomy & Physiology
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Which of these types of channels is involved in leaking sodium and potassium ions across the membrane in order to establish the resting potential of a cell?
a) A b) B c) C d) D
Anatomy & Physiology
A patient is heterozygous for sickle-cell anemia. Explain why the patient would have few or no symptoms of sickle-cell anemia
What will be an ideal response
Anatomy & Physiology
The placental membrane is composed of
A. the embryonic disc. B. the amnion and chorion. C. a single layer of epithelial cells. D. a double layer of epithelial cells.
Anatomy & Physiology
The two major types of phagocytic cells are ________ and ________.
A. lymphocytes; monocytes B. neutrophils; monocytes C. eosinophils; T cells D. neutrophils; macrophages E. monocytes; macrophages
Anatomy & Physiology