This bone bears a small opening for hearing
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What is temporal bone?
The ____ is shown in purple and the ____ is shown in red. These bones both contain teeth
What are the maxilla and the mandible?
This system represents the fastest means of intercellular communication in the human body
What is the nervous system?
Differences between nervous and endocrine signalling
Endocrine uses hormones, nervous uses neurotransmitters. Nervous responds more quickly to stimuli
These bones make up the skull cap
What are the frontal, occipital and parietal bones?
This bone shown in teal connects to the facial skull, is also called the "cheek bone" 
What is the zygomatic bone?
All or nothing: action potential will not occur unless this is reached
What is threshold?
This bone is seen in hot pink in this photo
What is the sphenoid bone?
Shown in teal, this bone supports the structure of the nasal passages and face 
What is the vomer?
The endocrine system reaches all body cells by using these for communication
What are hormones?
Located in the eye socket, the following picture shows this bone in white
What is the ethmoid bone?
Located in the eye socket, these bones are shown in lime green
What are the lacrimal bones?
Extracellular or intercellular chemicals or events that provoke responses in cells; can be inside or outside the body
What is a stimulus?
Neurotransmitters can diffuse out of the synaptic cleft, be degraded by various enzymes, or specific transport proteins can allow the cell to reabsorb and repackage them
What are the 3 ways chemical signaling ends?