quiz 2

PET scan

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

sympathetic

jacob has just gotten an interview for a job he really wants. With his excitement, his heartbeat increases, his blood pressure rises, and he begins to perspire. Which nervous system is responsible for these physiological changes

Epinephrine

Neurotransmitter secreted by the adrenal medulla in response to stress. Also known as adrenaline. if a professor accused you as cheating on a test and your adrenal glands would probably release what

Endorphins

natural, opiate-like neurotransmitters linked to pain control and to pleasure

Axon

the extension of a neuron that carries messages away from the cell body

Oxytocin

A hormone that enables contractions associated with birthing and milk flow during nursing

Dopamine

A neurotransmitter associated with movement, attention and learning and the brain's pleasure and reward system. suffers from parkinson's disease and his shaking arm movements are so severe that he has difficulty feeding or dressing himself without help. the symptoms are most likely to be linked with the undersupply of what neurotransmitter

the localization of function

Although phrenology incorrectly suggested that bumps on the skull revealed a person's character traits, phrenology did succeed in focusing attention on

EEG

An amplified recording of the waves of electrical activity that sweep across the brain's surface.

synaptic gap

Drugs that block the reuptake of serotonin will thereby increase the concentration of serotonin molecules in the

the myelin sheath

Gerald has experienced increasing difficulties with muscle weakness, motor coordination, and body balance, which his doctor has diagnoses as multiple sclerosis. these symptoms are most likely to be directly linked with the degeneration of

Serotonin

SSRIs relieve depression by partially blocking the reuptake

pituitary gland

The endocrine system's most influential gland. Under the influence of the hypothalamus, the pituitary regulates growth and controls other endocrine glands.

bloodstream

The speedy nervous system zips messages by way of neurotransmitters. Endocrine messages, however, are delivered more slowly because hormones travel through

Hypothalamus

brain region controlling the pituitary gland

acteylcholine

chemical transmitter released by some nerve endings symptoms of confusion and memory loss have led his physicians to conclude that he suffers from alzheimers disease. this is the deterioration of brain cells that produce the neurotransmitter

reuptake

reabsorption of excess neurotransmitter molecules by a sending neuron

Plasticity

the capacity of the brain to develop new neural pathways as it adjusts to damage is

parasympathetic nervous system

the division of the autonomic nervous system that calms the body, conserving its energy pupils contract, heartbeat slows, digestion is stimulated, and bladder contracts

cell body

the part of the neuron that contains the nucleus is call the