The _______ nervous system includes the brain and spinal cord. The _______ nervous system carries messages between the brain and
the body. The _______ division of the peripheral nervous system is responsible for receiving inputs like temperature, texture, smell, and taste. The _______ nervous system controls things that you do not often think about, like digestion and breathing. The brain sends messages and commands back to the rest of the body through the _______ division of the peripheral nervous system. Taste molecules are unique because different molecules trigger _______ in the nose and mouth. Rods and _______ are the major types of cells responsible for receiving light and translating light into nerve signals. The optic nerves "cross over" from left to right and form an "X" at the _______. Explain what happens in the nervous system when you touch a hot pan in the kitchen. Your explanation should begin with the perception of temperature, and end with pulling away your hand.
9. When pain & temperature receptors in skin tissue are triggered by touching a hot pan, a stimulus or impulse is generated that travels along the axons of sensory nerves in the peripheral nervous system. These impulses travel through the spinal cord to the brain where pain is perceived. The brain then sends a signal back down the spinal cord, triggering action potentials in motor neurons until it reaches the various muscles of the arm and signals to pull the hand away. This all happens in the blink of an eye.
B. are more difficult to control than point sources. This is because A. is wrong (point source), and C. is wrong, because it doesn't necessarily cost less or more to identify the sources. D. may be right, as non point sources are natural, such as snow melts or rain.
The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose.
