psychology 101 chapter 2

the brain's work group clusters made up of neurons

neural centers includes amygdala, hypothalamus , and hippocampus

nerves are ________ axons forming neural cables connecting CNS with other organ systems

Brain scan using electrical waves

A condition resulting from surgery that isolates the brain's two hemispheres

goes all out (nerves branch off from spinal cord)

T/F endocrine system involves glands that secrete hormones

Segments of DNA capable of synthesizing proteins

fibers that receive messages from other cells

enables muscle action, learning and memory

T/F the cerebral cortex is a simple fabric of interconnected neural cells over the hemispheres

T/F reflexes are automatic responses to stimuli

body's speedy communication network, consisting of all the nerve cells

afferent neurons

Brain and spinal cord

shows both brain funciton and the anatomy

Data received by either hemisphere are transmitted to the other side via corpus callosum

T/F the cerebral cortex is the bod's ultimate control and information processing center

T/F reuptake is when the neurotransmitters are reabsorbed by the sending neuron

a resting pause that occurs after a neuron has fired

T/F Neurogenesis is the formation of new neurons

molecule that inhibits or blocks a neurotransmitters aciton

how many assoication areas are there

sensory control center

calming, rest and digest

tiny gap at synapse

carry instructions from central nervous system out to body's muscles and glands

the adrenals secrete what hormone(s)

T/F another name for motor neurons is affernet neurons

communicate with one another and process info b/t the sensory input and motor output

what lobes are involved in speaking, movement, and making plans and judgements

PNS division that controls the glands and the muscles of the internal organs

a brief electrical charge that travels down an axon

junction b/t axon tip of sending the neuron and dendrite or cell body of the receiving neuron

T/F Another name for sensory neurons is efferent neurons

PNS division that controls the body's skeletal muslces

how many parts are there with subdivisions

controls heart rate and breathing

filters incoming stimuli and relays important information to other brain areas

where are the frontal lobes

the large band of neural fibers connecting the 2 brain hemispheres and carries messages b/t

how many neurons does the adult brain have

Thread like structures made of DNA molecules that contain the genes. 46 total; 23 haploid cells

how do neurotransmitters influence behavior and how do drugs and other chemicals affect them?

auditory areas

Naturally or experimentally caused destruction of brain tissue

directs several maintenance activities

Natural, opiate like neurotransmitters linked to pleasure and released in response to pain

T/F the endocrine system is the body's fast chemical communication system

pair of endocrine glands situated above the kidenys

receive sensory input for touch and body position

endocrine system's most influential gland

molecule that increases a neurotransmitters action

linked to emotion and consists of 2 neural clusters in the limbc system

consists of all the genetic material in the organism's chromosomes

specialization is apparent after brain damage

a neuron's Rx of either firing or not firing at all

passes messages away from cell body to other neurons or to muscles or glands

form junctions with other cells

recieve info from visual fields

cell's life support center

the level of stimulation required to trigger a neural impulse

the brain's ability to change,especially during childhood

what are neurons

chemical messengers that cross synaptic gaps b/t neurons

arousing, fight or flight

helps process explict memories for storage

results in different losses

oldest and innermost region of the brain

a complex molecule containing the genetic information that makes up the chromosomes.

covers the axons of some neurons and helps speed neural impulses

front of parietal lobes; registers and processes information from senses and movements

T/F motor functions are electrically stimulating motor cortex the cause body movement

coordinates voluntary movement and output and balance

essential a giant magnet