Which of the following represents the chemical level of structure in the human body?
A) organs
B) tissues
C) atoms
D) cells
E) organ systems
C
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Capillaries empty into __________
Fill in the blank with the correct word.
Where are receptors for the chemical senses located?
A. in the organ of Corti and saccule B. in the cochlea and lateral geniculate nucleus C. in the skin and tendons D. in the tongue and nose E. in the fovea and semicircular canals
Which is NOT a function of Sertoli cells?
A. forming a barrier between the blood and developing germ cells B. secreting inhibin C. nourishing developing sperm D. converting estrogens into testosterone E. phagocytizing defective sperm
The neuromuscular junction
a. is the junction between a motor neuron and a skeletal muscle fiber b. transmits an action potential between the nerve cell and muscle cell on a one-to-one basis c. may produce either an EPSP or an IPSP on the motor end plate d. has all of the above characteristics e. has characteristics a and b