The vascular link between the hypothalamus and the ________ is called the hypothalamo-hypophyseal portal system.
A. posterior pituitary
B. pineal gland
C. thalamus
D. anterior pituitary
Answer: D
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The GM-CSF growth factor accelerates the formation of all granulocytes and monocytes from their progenitor cells.
Answer the following statement true (T) or false (F)
Hypertension is frequently called the "silent killer."?
Indicate whether the statement is true or false
A positive feedback loop occurs when the outcome of an event causes the event to continue occurring and amplifies its effects. Which of the following aspects of an action potential constitutes a positive feedback loop?
A. Opening of voltage-gated sodium channels causes voltage-gated potassium channels to open and release potassium to the extracellular environment, slowly counteracting sodium influx. B. The sodium-potassium pump exactly balances ion leaks by pumping three sodium and two potassium ions across the membrane. C. An initial flow of sodium ions into the neuron opens voltage-gated sodium channels, rapidly causing more sodium to enter. D. The threshold potential is around -55mV.
Jason injured his hamstring muscle group during football practice. He will be unable to perform ________
A) thigh extension and knee flexion B) dorsiflexion C) thigh abduction and adduction D) leg rotation and plantar flexion