Flashcards: Psychology ch.3
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Created by:
crossxmyheart0x on September 12, 2009
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Terms | Definitions |
|---|---|
 20% | The brain uses what percent of all of our oxygen? |
| Fissure | Lengthy depression in the middle of the brain from front to back |
| Corpus Callosum | Massive bundle of nerve fibers that connects the two hemispheres |
| Frontal Lobe | Contains the motor strip and frontal association area |
| Parietal Lobe | Area of the brain that contains the sensory strip |
| Occipital Lobe | Area of the brain that interprets visual information |
| Temporal Lobe | Area of the brain responsible for hearing and some some speech functions |
| Dominance | For each person, one hemisphere is preferred and controls the majority of actions performed |
| Axon | Part of the neuron that carries messages away from the nerve cell to the dendrites on another nerve cell |
| Hypothalmus | Portion of the lower brain that regulates basic needs like hunger, emotions, fear, rage, and sexuality |
| Thyroid Gland | Gland that controls the speed of bodily processes, called metabolism |
| Gonads | Sex glands that make sperm or eggs for reproduction |
| Cerebral Cortex | 100 billion nerve cell unit that covers the lower brain and controls very high level thought |
| Synapse | Junction point of two or more neurons |
| Metabolism | Speed at which the body operates and or uses up energy |
| Reflex | An automatic behavior of the body involving movement activated through the spinal cord without using the higher brain |
| Androgen | Male sex hormone |
| Estrogen | Female sex hormone |
| Sensory Strip | Rectangular band running down the side of the brain which registers and provides all sensation |
| Neurotransmitters | Chemical in the endings of nerve cells that sends information across the synapse |
| Cerebellum | Portion of the lower brain that coordinates and organizes bodily movements for balance and accuracy |
| Glands | Units of the body that contain the hormones |
| Adrenal Glands | Glands that cause excitement in order to prepare the body for an emergency |
| Endocrine System | System of all the glands and their chemical messages taken together |
| Reticular Activating System | Alertness control center of the brain that regulates the activity level of the body; net that catches nerve impulses |
| Spinal Cord | Functions as an automatic Brain in its own right and is a relay station for impulses to and from the higher brain |
| Dopamine | Neurotransmitter that is involved in motor functions or movement |
| Lower Brain | Part of the brain which contains the thalamus, cerebellum, hypothalamus, and the reticular activating system |
| Adrenaline | Chemical that prepares the body for emergency activity by increasing blood pressure, breathing rate, and energy level |
| Pituitary Gland | Master gland of the body that activates other glands and controls the growth hormone |
| Neuron | Nerve cell that transmits electrical and chemical information throughout the body |
| Thalmus | Portion of the lower brain that functions primarily as a central relay station for incoming and outgoing messages from the body to the brain and vice versa |
| Frontal Association Area | Forward portion of the brain that engages in elaborate associations of mental connections |
| Growth Hormone | Hormone controlled by the pituitary that regulates the growth process |
| Endorphins | neurotransmitters that relieve pain and increase our sense of well-being |
| Motor Strip | Rectangular band running down the side of the brain that controls all motor functions |
| Dendrite | Part of the nerve cell that receives information from the axons of other nerve cells |
| Acetylcholine | Neurotransmitter that regulates basic bodily processes such as movement |