HCARE_LEC2 Flashcards
(48 cards)
“Externally visible activity of an animal, in which a
coordinated pattern of sensory, motor, and associated
neural activity responds to changing external or
internal conditions.” (Beck, et. al, 1981)
→ A response to external and internal stimuli following the integration of (1) sensory, (2) neural, (3) endocrine, and (4) effector components.
Behavior
→ “Observable activity of an organism; anything an
organism does that involves action and/or response to
stimulation.”
→is how someone acts and a response to things that are happening.
behavior
CLASSIFICATIONS OF HUMAN BEHAVIOR
→ Molecular or Molar
(unconscious or conscious)
→ Overt or Covert
(visible or invisible)
→ Voluntary or Involuntary
(controlled or uncontrolled)
→ Everything you think and feel is controlled by
electrical and chemical activity in your brain and
the rest of your body.
→ Also known as the _____
▪ To these theorists, the body controls the mind and
not the other way around.
Biological Viewpoint; Psychiatrist’s point of view
→neurotransmitter
→made up of amino acid tryptophan
(naturally found in nuts, cheese,
and red meat)
→found mostly in the gut
→regulates digestive functions such
as bowel function and appetite
→suppress the feeling of hunger
→low levels can lead to the
development of depression
SEROTONIN
→neurotransmitter
→produced by tyrosine
→mostly stored in the brain found mostly in the gut
→controls body movement and coordination
→promotes the feeling of hunger
→low levels can lead to the
development of depression
DOPAMINE
→ The psychologists try to explain the behaviors they’ve measured in terms of mental processes such as perceptions, motives, values, attitudes, and memories.
→ The mind dominates most bodily activities
→ Also known as the _____
Intrapsychic Viewpoint; Psychologist’s point of view
→ One’s behavior can be explained in terms of their
physical, social, and cultural environment.
Social/Behavioral Viewpoint
→ It is a nerve cell that is used for communicating
→ All 3 parts are necessary for transmitting necessary
messages through your body. Without these
messengers you could not perform the simplest action
or think a single thought (enumerate 3)
Neuron; Dendrite, Soma, Axon
- the front end or input side of a neuron
composed of a network of fibers - receives info from other nerve cells
Dendrite
- main part of the body of nerve cell
- receives inputs from other neurons
- neuron’s “housekeeper”
- most complex chem reactions in
cellular metabolism happens here (this
keeps the cell healthy)
Soma
- action end or output system of the neuron
- stretches out from the soma like a branching telephone cable
- at the end of its cable are tiny fibers
(____) that release chemicals
that affect the dendrites and cell bodies
of nearby neurons, or muscles and
glands - ______ = end of the axon, has
axonic fibers where messages are being
sent to another cell
axon; Axon terminals
Three types of neurons and their classification:
MMe-BI-USa
Multipolar neuron: Motor neurons
Bipolar neuron: Interneurons
Unipolar neuron: Sensory neurons
- also referred to as afferent neurons
- involved in relaying information from
your (1) eyes, (2) ears, and (3) other
sensory receptors, then to the brain
Sensory neurons
- also referred to as efferent neurons
- involved in relaying messages from your
brain to your muscles and glands
Motor neurons
- convey impulses from one neuron to
another in the brain and spinal cord. - most brain’s neural activity is carried on
by interneurons
Interneurons
→ A large bundle of axons from many neurons
Nerve
→ One axon, many dendrites (most common type)
Multipolar neuron
→ One axon, one dendrite
Bipolar neuron
→ A single extension branches in two directions, forming a receptive pole and an output zone
Unipolar neuron
→ consists of the brain and spinal cord
Central Nervous System (CNS)
→ consists mainly of nerves connecting the central
nervous system to the sense receptors as well as to
the muscles and glands
Peripheral Nervous System (PNS)
PNS is made up of:
▪ Somatic Nervous System
controls the voluntary muscles
▪ Autonomic Nervous System (ANS)
controls the normal body functions (involuntary)
- Breathing, pumping out of blood from the heart
Autonomic Nervous System (ANS)
→ is further subdivided into two major divisions:
▪ Sympathetic Nervous System (SNS)
responsible for the body’s flight and flight activities.
speeds up bodily activities such as heart rate,
breathing, and sweating.
▪ Parasympathetic Nervous System (PNS)
promotes breathing, digestion and secretion
turns off or slows down most activities
automatically aroused by the sympathetic system
conserves or builds up your body’s resources
controls nipple erection (in females) and penis
erection (in males)