The parietal bone is indicated by ________

All of the following can contribute to receptor specificity except

A) the structure of the receptor cell. B) characteristics of the receptor cell membrane. C) accessory cells that function with the receptor. D) accessory structures and tissues that shield the receptors from other stimuli. E) the metabolism of the receptor cell.

In which body cavities are the lungs located?

A) pleural, dorsal, and abdominal B) pleural, ventral, and thoracic C) pericardial, ventral, and thoracic D) mediastinal, thoracic, and ventral

Interferons

A) prevent viruses from leaving a cell. B) prevent viruses from entering a cell. C) bind to viruses and destroy them. D) interfere with viral replication. E) reduce macrophage chemotaxis to the infection.

The brain and spinal cord together compose the

A) visceral nervous system. B) somatic motor division of the nervous system. C) autonomic division system. D) central nervous system. E) peripheral nervous system.