2 Biological Bases of Behavior Flashcards
(104 cards)
The study of biological bases of human behavior
Biopsychology
They use drugs for treating those with psychological & physical disorders.
Biopsychologist
Is the system by means of which we perceive, adapt to, & interact with the world around us.
Nervous System
Is made up of brain
& the spinal cord.
- Made up of neurons located in the brain and spinal cord.
Central Nervous System
Made up of neurons & bundles of axons & dendrites that carry information back & forth between the brain & the body.
Spinal Cord
What are the division of the nervous system?
- Central Nervous System
- Peripheral Nervous System
Includes all the nerves that extend from the spinal cord & carry messages to various muscles, glands, & sense organs located throughout the body.
Peripheral Nervous System
Consists of a network of nerves that connect either to sensory receptors or to muscles that you can move voluntarily.
Somatic Nervous System
Regulates heart rate, breathing, blood pressure, digestion, hormone secretion, & other functions
Autonomic Nervous System
Subdivisions of the PNS
- Somatic Nervous system
autonomic nervous system
Subdivision of ANS
- Sympathetic Division
- Parasympathetic Division
Which is triggered by threatening or challenging physical or psychological stimuli, increasing physiological arousal, & preparing the body for action.
Sympathetic division
Returns the body to a calmer, relaxed state & is involved in digestion
parasympathetic divison
Sympathetic actions
fight or flight
parasympathetic action
rest and digest
Are string like bundles of axons & dendrites that come from the spinal cord & are held together by connective tissue.
nerves
which number about 100 billion, have two specialized extensions: receiving electrical signals; & transmitting electrical signals
neurons
the most numerous brain cells about 900billion
glial cells
is a relatively large, egg-shaped structure that provides fuel, manufactures chemicals, & maintains the entire neuron in working order
cell body
are branchlike extensions that arise from the cell body& insulates an axon
dendrites
is a single threadlike structure that extends & carries signals away from the cell body to neighbouring neurons, organs, & muscles.
axon
looks like separate tube-like segments composed of fatty material that wraps around
Myelin Sheath
Look likes tiny bubbles, are located at the extreme ends of the axon’s branches.
end bulb/ axon terminal buttons
Is an infinitely small space (20-30 billions of a meter) that exists between an end bulb & its adjacent body organ (heart), muscles (head), or cell body.
synapse