The specialized vessels that carry blood containing releasing hormones from the brain to their target gland make up the
A. hypothalamus-pituitary portal system.
B. circle of Willis.
C. common jugular veins.
D. hepatic portal system.
E. adrenal regulatory pathway.
Answer: A
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Which is FALSE about the equilibrium potential of a given ion across a membrane?
A. It is a function of the concentration of that ion on both sides of the membrane. B. It is the potential difference across the membrane at which an electric force favoring movement of the ion in one direction is equal in magnitude and opposite in direction to the diffusion force provided by the concentration difference of the ion across the membrane. C. It is the potential at which there is no net movement of that ion across the membrane. D. A permeable ion will move in the direction that will tend to bring the membrane potential toward that ion's equilibrium potential. E. An anion that is in higher concentration inside the cell than outside the cell will have a negative equilibrium potential.
Normally, the stroke volume of the right side of the heart is the same as the stroke volume of the left side of the heart
Indicate whether the statement is true or false
What kind of tissue lines most of the respiratory tract?
A. Stratified squamous epithelium B. Simple squamous epithelium C. Ciliated squamous epithelium D. Ciliated cuboidal epithelium E. Ciliated pseudostratified epithelium
Homeostatic regulatory mechanisms known as ________ are "built-in" to the organs being regulated.
A. passive B. intrinsic C. extrinsic D. exothermic