1. What is communication?
Communication is by definition the exchange of information between different places. In today’s society, people may relay information on the phone or in a conversation. Similarly, in the body, it is common that information needs to travel in order to make decisions or carry out decisions. For example, a person may touch something. The cells that sense contact would communicate the signal for what is being felt across the body to the brain; the person who touches a certain substance would then feel what was touched. This can happen in an instant and often times the body will use reflexes instead. Touch occurs so quickly, however, that time is vital if someone’s life is in danger. If …show more content…
*Hypothalamus: Functions include regulating and maintaining homeostasis, emotions, thirst, hunger, and control of the autonomic nervous system.
*Hippocampus: Part of the brain important for learning and memory (converting short-term memory to long-term memory) and spatial relationships.
*Amygdala: (Located in Temporal Lobe) Involved with memory, fear, and emotion.
*Pituitary Gland: Releases hormones that effect growth, sexual development, and metabolism.
6. How do scientists determine which areas of the brain are associated with specific actions, emotions, or functions? Referring back to Phineas Gage, scientist were able to determine (based on where he was injured and what effect that had on his body) that the Frontal Lobe had something to do with personality traits. In addition, because Gage survived this event, the Frontal Lobe was not entirely vital for the body to function. Incidents such as these have been able to lead scientists to determine what portion of the brain is associated with specific actions, emotions, functions, etc. They study areas of the brains that are effected by various means and further relate that to how that person was …show more content…
How does the eye perceive depth, color and optical illusions?
Depth perception is the ability to determine the distance of objects and spatial relations of objects at various distance. The retina is made up of several layers within contain rods and cones. Cones are any of the cone shaped receptors in the retina that respond to color. Rods are the long shaped receptors that respond to faint light. The eye perceives optic illusions because of blind spots in the eye that are due to where the optic nerve enters the eye and is lacking rods and cones. This area is insensitive to light; the brain will often assume what is there and fills it in with what makes sense.
10. How does an error in the structure or function of the eye relate to disease or