AP+Brain+HW

The Brain Homework (using the book) p.256 to 261.

Outline the parts and function of the four major parts of the brain: (1) cerebrum, (2) diencephalon, (3) cerebellum, (4) brain stem. (Images helpful) Cerebrum: Diencephalon: Cerebellum: Brain stem: (5) What is the function of the limbic system? blends primitive emotions and higer mental functions
 * largest portion of brain in the body
 * last place to receive sensory imput
 * communicates with other parts of the brain
 * Two halves:
 * left and right cerebral hemisphere
 * encircles the thrid ventricl
 * Hypothalamus:
 * helps maintain homeostasis by regulating hunger, thirst, body temperature and water balance
 * controls pituitary gland
 * Thalamus:
 * gray matter on the side and roof of the thri ventricle
 * receives all sensory expect for smell
 * gets signals to send info to the cerebrum
 * under the lobe of the cerebrum
 * has two portions joined by white matter that is a thin layer of gray matter that forms a complex fold
 * receives sensory from the eyes, ears, joints, and muscles
 * helps maintain posture and balance
 * helps all the muscles work together for coordination
 * assists learning ne w skills such as the piano
 * contains three parts
 * Midbrain:
 * reflex center for visual, auditory, and tactile responses
 * Pon:
 * helps regulate breathing, heartbeat and blood pressure
 * has reflex centers that deal with the head movement
 * Medulla Oblongata
 * reflex center for regulating heartbeat, breathing and blood pressure
 * reflex center for vomiting, coughing, sneezing, hiccuping and swallowing

(6) What limbic system structure is involved in the flight or fight reaction. Explain. Amygdala is envoled in the flight or fight reastion becasue it casues you to have emotional overtone and creates fear. If someone pulls a un our at you, you might automatically run, fight back or stnad there in shock and dont know what to do. Fighting back, running away or standing there in shock is how amygdala occurs.

(7) What limbic system structure is involved in learning and memory. Explain.

(8) Describe the various types of memory. There are five different types of memory Short-term memory Long-term memory Semantic memory Episodic memory Skill memory (9) What appear to be the roles of the left hemisphere of the cerebrum and the right hemisphere? On the left hempishere is the verbal, logical, analytical, and rational On the right side of the hemisphere is the nonverbal, visuopatial, intuitive, and creative
 * the stuff you remember at the sperm of the moment
 * it lies in your forhead
 * The stuff you remember from a long amount of time
 * things that you remember such as numbers and words
 * when you remember people and events
 * when you learn a skill such as soccer or riding a bike
 * you have to think about it first and then it comes automatically

(10) What is Wernicke's area and Broca's area? Wernickes area: Brocas Area:
 * is the seeing and hearing of words
 * when it is damaged it is hard for a person to comprehend speech
 * is speaking and writing
 * when it is damaged it is hard for a person to speak and write