Psych Homework 2
The classic case of railroad worker Phineas Gage best illustrated that frontal lobe damage can a. trigger muscle spasms b. alter one's personality c. facilitate neurogenesis d. enhance moral reasoning skills
b
The motor cortex is located in the ____ lobes. a. parietal b. frontal c. occipital d. temporal
b
The nervous system that arouses and expands energy is the ____ nervous system. a. autonomic b. sympathetic c. parasympathetic d. somatic
b
Which neural center in the limbic system plays an important role in emotions such as fear and rage? a. thalamus b. amygdala c. hypothalamus d. nucleus accumbens
b
A loss of physical coordination and balance is most likely to result from damage to the a. hypothalamus b. amygdala c. cerebellum d. hippocampus
c
An axon is a. a cell that serves as the basic building block of the nervous system b. a molecule that blocks neurotransmitter receptor sites c. the extension of a neuron that carries messages from the cell body d. the layer of fatty tissue that encases the fibers of many neurons
c
An axon transmits messages _____ the cell body and a dendrite transmits messages ____ the cell body. a. toward; toward b. toward; away from c. away from; toward d. away from; away from
c
Degeneration of the myelin sheath results in a. schizophrenia b. an action potential c. multiple sclerosis d. reuptake
c
Sequence of brain regions from oldest to newest a. brainstem, limbic system, cerebral cortex b. limbic system, brainstem, cerebral cortex c. brainstem, cerebral cortex, limbic system d. limbic system, cerebral cortex, brainstem
a
The minimum level of stimulation required to trigger a neural impulse is called the a. threshold b. reflex c. synapse d. action potential
a
The parietal lobes are to ___ as the occipital lobes are to ___. a. sensing touch; seeing b. speaking; seeing c. hearing; speaking d. tasting; smelling
a
The peripheral nervous system consists of two divisions: the a. somatic and autonomic systems b. sympathetic and parasympathetic systems c. sympathetic and somatic systems d. parasympathetic and autonomic systems
a
A myelin sheath is a a. large band of neural fibers connecting the two adrenal glands. b. a layer of fatty tissue encasing the axons of some nerve cells c. nerve network within the spinal cord that controls physical arousal d. busy extension of a neuron that conducts impulses toward the cell body
b
Before an action potential begins, the fluid outside an axon's membrane has _____ ions; the fluid inside has _____ ions. a. neither positively nor negatively charged; neither positively nor negatively charged b. mostly positively charged; mostly negatively charged c. equal numbers of positively and negatively charged; equal numbers of positively and negatively charged d. mostly negative charged; mostly positively charged
b
One function of glial cells is to a. increase the speed of neural impulses b. provide nutrients to neurons c. stimulate the production of hormones d. mimic the effects of neurotransmitters
b
The brain's oldest region is the a. amygdala b. brainstem c. hypothalamus d. hippocampus
b
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? a. somatic b. parasympathetic c. sympathetic d. autonomic
c
Split- brain patients have had their ______ surgically cut. a. somatosensory cortex b. frontal lobes c. corpus callosum d. hippocampus
c
The capacity of a brain area to develop new neural pathways as it adjusts to damage is known as a. dendrites b. phrenology c. plasticity d. an action potential
c
The thalamus serves as a a. reward center b. master gland c. sensory control system d. memory bank
c
The two nervous systems that work together to keep us in a state of homeostasis are the ____ nervous systems. a. parasympathetic and autonomic b. sympathetic and somatic c. sympathetic and parasympathetic d. somatic and autonomic
c
An action potential is generated by the movement of ___ through an axon membrane. a. neurotransmitters b. glial cells c. glands d. ions
d
Following massive damage to his frontal lobes, Phineas Gage was most strikingly debilitated by a. muscle spasms b. auditory hallucinations c. memory loss d. irritability
d
The branching extensions of nerve cells that receive incoming signals from sensory receptors or from other neurons are called the a. axons b. neurotransmitters c. synapses d. dendrites
d
Which of the following is most clearly characterized by a temporary inflow of positively charged sodium ions through an axon membrane? a. a resting potential b. a refractory period c. reuptake d. an action potential
d
