Chapter 3 Review Questions Flashcards
A(n) ________ uses magnetic fields to create pictures of a given tissue.
EEG
The central nervous system is comprised of ________.
Brain and Spinal Cord
If your ________ is activated, you will feel relatively at ease.
Parasympathetic
An action potential involves Na+ moving ________ the cell and K+ moving ________ the cell.
Inside; outside
Multiple sclerosis involves a breakdown of the ________.
myelin sheath
A(n) ________ facilitates or mimics the activity of a given neurotransmitter system.
agonist
The ________ receive(s) incoming signals from other neurons.
dendrites
Humans have ________ pairs of chromosomes.
23
________ is the field of study that focuses on genes and their expression.
Epigenetics
________ refers to a person’s genetic makeup, while ________ refers to a person’s physical characteristics.
Genotype; phenotype
A(n) ________ is a sudden, permanent change in a sequence of DNA.
mutation
Our ability to make our legs move as we walk across the room is controlled by the ________ nervous system.
Somatic
Sympathetic activation is associated with ________.
pupil dilation, increased heart rate
The ________ is a sensory relay station where all sensory information, except for smell, goes before being sent to other areas of the brain for further processing.
Thalamus
Damage to the ________ disrupts one’s ability to comprehend language, but it leaves one’s ability to produce words intact.
Wernicke’s Area
