Which region of the brain serves as the major relay station for most sensory impulses that reach the primary sensory areas of the cerebral cortex from the spinal cord and brain stem?
a) Thalamus
b) Hypothalamus
c) Epithalamus
d) Pons
e) Midbrain
a
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Hypophysiotropic hormones
a. control the release of oxytocin and vasopressin from the posterior pituitary b. travel via neuron axons from the hypothalamus to the anterior pituitary c. are carried in the hypothalamo-hypophyseal portal system d. are released upon positive-feedback stimulation via anterior pituitary tropic hormones e. always act to stimulate the release of anterior pituitary hormones
During which phase of mitosis do the chromosomes split?
A. Anaphase B. Metaphase C. Prophase D. Telophase
Astronauts in zero gravity are able to move food through their digestive tracts because __________.
A. smooth muscle produces waves of contractions that propel material through the digestive tract B. skeletal muscle puts pressure on the digestive tract C. cardiac muscle maintains a high pressure that moves material through the digestive tract D. striated muscle creates a pressure gradient that forces material from one end of the digestive tract to the other E. skeletal muscle sphincters contract and allow materials to move through the digestive tract
A partly specialized cell that is the daughter of a stem cell is a ________ cell
Fill in the blank(s) with correct word