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Ap Pysch > Unit 3 Vocab > Flashcards

Unit 3 Vocab Flashcards

1
Q

the scientific study of the links between biological and psychological processes.

A

biological psychologists

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2
Q

a nerve cell; the basic building block of the nervous system.

A

neuron

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3
Q

the bushy, branching extensions of a neuron that receive messages and conduct impulses toward the cell body.

A

dendrites

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4
Q

the neuron extension that passes and electrical messages through its branches to other neurons or to muscles or glands.

A

axon

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5
Q

a layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next.

A

myelin sheath

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6
Q

a neural impulse; a brief electrical charge that travels down an axon.

A

action potential

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7
Q

a period of inactivity after a neuron has fired.

A

refractory period

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8
Q

the level of stimulation required to trigger a neural impulse.

A

threshold

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9
Q

a neuron’s reaction of either firing or not firing.

A

all-or-nothing response

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10
Q

the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron. The tiny gap at this junction is called the synaptic gap or synaptic cleft.

A

synapse

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11
Q

chemical messengers that cross the synaptic gaps between neurons. When released by the sending neuron, they travel across the synapse and bind to receptor sites on the receiving neuron, thereby influencing whether that neuron will generate a neural impulse.

A

neurotransmitters

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12
Q

a neurotransmitter’s reabsorption by the sending neuron.

A

reuptake

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13
Q

“morphine within”—natural, opiate-like neurotransmitters linked to pain control and to pleasure.

A

endorphins

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14
Q

A chemical that mimics the action of a neurotransmitter.

A

Agonist

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15
Q

Chemical substances that block or reduce a cell’s response to the action of other chemicals or neurotransmitters.

A

Antagonists

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16
Q

the body’s speedy, electrochemical communication network, consisting of all the nerve cells of the peripheral and central nervous systems.

A

nervous system

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17
Q

the brain and the spinal cord

A

Central nervous system (CNS)

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18
Q

the sensory and motor neurons that connect the central nervous system to the rest of the body

A

Peripheral nervous system (PNS)

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19
Q

bundled axons that form neural “cables” connecting the central nervous system with muscles, glands, and sense organs.

A

nerves

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20
Q

neurons that carry incoming information from the sensory receptors to the brain and spinal cord.

A

sensory (afferent) neurons

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21
Q

neurons that carry outgoing information from the brain and spinal cord to the muscles and glands.

A

motor (efferant) neurons

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22
Q

neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs.

A

interneurons

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23
Q

the division of the peripheral nervous system that controls the body’s skeletal muscles (skeletal nervous system)

A

Somatic nervous system

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24
Q

the part of the peripheral nervous system that controls the glands and the muscles of the internal organs. It’s sympathetic system arouses and parasympathetic calms.

A

Autonomic nervous system

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25
Q

the division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations. (If you get scared)

A

Sympathetic nervous system

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26
Q

the division of the autonomic nervous system that calms the body, conserving its energy (Your PARents come home and calm you down)

A

Parasympathetic nervous system

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27
Q

simple, automatic responses to sensory stimuli, such as the knee-jerk response

A

Reflexes

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28
Q

the body’s “slow” chemical communication system; a set of glands that secrete hormones into the bloodstream

A

Endocrine system

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29
Q

chemical messengers that are manufactured by the endocrine glands, travel through the bloodstream, and affect other tissues

A

Hormones

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30
Q

a pair of endocrine glands that sit just above the kidneys and secrete hormones (epinephrine and norepinephrine) that help arouse the body in times of stress

A

Adrenal glands

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31
Q

“THE MASTER GLAND” the endocrine system’s most influential gland under the influence of the hypothalamus, the pituitary regulates growth and controls other endocrine glands

A

Pituitary gland

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32
Q

tissue destruction. It can occur naturally or experimentally by the caused distruction/remove of brain tissues

A

Lesion

33
Q

An amplified recording of the waves of electrical activity that sweep across the brain’s surface. These waves are measured by electrodes placed on the scalp.

A

Electroencephalogram (EEG)

34
Q

a series of x-ray photographs taken from different angles and combined by computer into a composite representaion of a slice through the body. Aslo called a CAT scan

A

CT (computed tomography) scan

35
Q

A visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task.

A

(PET) Positron emission tomography scan

36
Q

a TECHNIQUE THAT USES MAGNETIC FIELDS AND RADIO WAVES TO PRODUCE COMPUTER generated images that distinguish among different types of soft tissues.

A

MRI (magnetic resonance imaging)

37
Q

A technique for revealing bloodflow and, therefore, brain activity by comparing successive MRI scans.

A

fMRI (functional MRI)

38
Q

the oldest part and central core of brain. AKA reticular formation, or reticular activating system. In charge of automatic survival functions

A

Brainstem

39
Q

The base of the brainstem. Controls heartbeat and breathing.

A

Medualla

40
Q

sleep and arousal

A

Pons

41
Q

the brains ‘sensory switch board’ Located at top of brainstem; directs messages to the sensory areas and transmits them to cerebellum and medulla.

A

Thalamus

42
Q

Plays an important role in controlling arousal.

A

Reticular Formation

43
Q

“little brain” at the rear of the brainstem; functions including processing sensory input, coordinating movement output and balance, and enabling nonverbal learning and memory.

A

Cerebellum

44
Q

A system of neural structures at the border of brainstem. Associated with emotions like fear, agression, and drives such as those for food and sex. Includes the Hippocampus, Amygdala and hypothalamus.

A

Limbic system

45
Q

2Lima bean sized neural clusters in the limbic system, linked to emotion. Includes rage and fear.

A

Amygdala

46
Q

Limbic system. Learning and memory matcher.

A

Hippocampus

47
Q

A neural structure lying below the thalamus, it directs several maintenance activities (eating, drinking, body temperature) helps govern the endocrine system via the pituitary gland, and is linked to emotion and reward.

A

hypothalamous

48
Q

Fabric of interconnected neuron cells. Higher order thinking. Takes meaning and puts it to focus. The body’s ultimate control and information-processing center.

A

Cerebral cortex

49
Q

Cells in the nervous system that support, nourish, and protect neurons.

A

Glial Cells

50
Q

the portion of the cerebral cortex lying just behind the forehead; involved in speaking and muscle movements and in making plans and judgements.

A

Frontal Lobes

51
Q

The portion of the cerebral cortex lying at the top of the head and toward the rear; includes the sensory cortex. Receives sensory input for touch and body position.

A

Parietal lobes

52
Q

the portion of the cerebral cortex lying at the back of the head; includes the visual areas, which receive visual info from the opposite visual feild.

A

Occipital lobes

53
Q

The portion of the cerebral cortex lying roughyl above the ears; includes the auditory areas, each of which revieves aditory info primarily from the opposite end.

A

Temporal lobes

54
Q

an area at the rear of the frontal lobes that controls voluntary movements.

A

motor cortex

55
Q

the area at the front of the parietal lobes that registers and processes body touch and movement sensations.

A

somatosensory cortex

56
Q

areas of the cerebral cortex that are not involved in primary motor or sensory functions; rather, they are involved in higher mental functions such as learning, remembering, thinking, and speaking

A

association areas

57
Q

The brain’s ability to change, especially during childhood, by reorganizing after damage or by building new pathways based on experience.

A

Plasticity

58
Q

Formation of new neurons

A

Neurogenesis

59
Q

Large band of neural fibers connecting the two brain hemispheres and carrying messages between them.

A

Corpus Callosum

60
Q

A conditioning resulting from surgery that isolates the brain’s two hemispheres by cutting the fibers connecting them.

A

Split Brain

61
Q

our awareness of ourselves and our environment.

A

Consciousness

62
Q

The interdisciplinary study of the brain activity linked with cognition. (including perception, thinking, memory and language.)

A

Cognitive Neuroscience

63
Q

a phenomenon can occur in two different ways, or as a result of two different processes, The principle that information is often simultaneously processed on separate conscious and unconscious tracks

A

Dual Processing

64
Q

the study of the relative power and limits of genetic and environmental influences on behavior

A

behavior genetics

65
Q

every nongenetic influence, from prenatal nutrition to the people and things around us

A

environment

66
Q

threadlike structure made of DNA molecules that contain the genes

A

chromosomes

67
Q

(deoxyribonucleic acid) a complex molecule containing the genetic information that makes up the chromosomes

A

DNA (deoxyribonucleic acid)

68
Q

the biochemical units of heredity that make up the chromosomes; segments of DNA capable of synthesizing a protein

A

genes

69
Q

the complete instructions for making an organism, consisting of all the genetic material in that organism’s chromosomes

A

genome

70
Q

twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisms

A

identical twins (monozygotic)

71
Q

twins who develop from separate fertilized eggs; no genetically closer than brothers and sisters, but they share a fetal environment

A

fraternal twins (dizygotic)

72
Q

subfield of biology that study the molecular structure and function of genes

A

molecular geneticists

73
Q

the proportion of variation among individuals that we can attribute to genes; this may vary depending on population range and the environment being studied

A

heritability

74
Q

the interplay that occurs when the effect of one factor (such as environment) depends on another factor (such as heredity)

A

interaction

75
Q

The study of environmental influences on gene expression that occur without a DNA change.

A

epigenetics

76
Q

The study of the evolution of behavior and the mind, using principles of natural selection.

A

evolutionary psychologists

77
Q

the principle that, among range of inherited trait variations, those that lead to increased reproduction and survival will most likely be passed on to succeeding generations

A

natural selection

78
Q

A random error in gene replication that leads to a change

A

mutations

Ap Pysch (14 decks)

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