The posterior pituitary does not produce its own hormones but stores hormones produced by the hypothalamus.
Answer the following statement true (T) or false (F)
True
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The thirst center in the hypothalamus is stimulated by ________ of the extracellular fluid, and is inhibited by ________.
A. a decrease in sodium ions; an increase in sodium ions B. a decrease in the osmotic pressure; stimulation of osmoreceptors C. nerve impulses from the cerebrum; nerve impulses from the thalamus D. an increase in the osmotic pressure; distension of the stomach by water
The SNARE complex provides
a. allows recognition of foreign proteins after they enter a cell b. a way for a certain enzyme to bind with the correct substrate c. a means to deliver vesicles to an appropriate site d. a mechanism necessary for receptor mediated endocytosis to occur e. all of the functions listed above
Which is a function of the cerebrospinal fluid?
A) Regulates hormone levels around the brain B) Circulates blood and oxygen around brain and spinal cord C) Acts as "lymph node" for the brain and spinal cord D) Cushions the brain from physical trauma
Which of the following statements is NOT true about the shape, position and location of the heart?
a. The heart is located between the two lungs within the mediastinum. b. Approximately two-thirds of the heart is found to the left of the midline. c. The heart is enclosed in a double-layered sac called the pleural membrane. d. The heart is shaped like a cone with the base facing the right shoulder.