Transcript eating spaghetti!

EATING SPAGHETTI!
Sensory Neurons are involved in
EATING SPAGHETTI
•
The smell of food is
apart of external
conscious. This
action is controlled
by sensory neurons.
NOT Motor
neurons. Sensory
neurons are
involuntary. The
action of smelling
food is
uncontrollable.
Neurons Active Role in Eating Spaghetti
Neurons cannot store glucose. So, they
are dependent on the blood
stream to deliver a constant
supply of precious fuels.
Carbohydrates are broken down
into glucose by cellular respiration
into ATP (Energy). Neurons
demand a lot of energy because
they’re always in a state of
metabolic activity. Neurons are
manufacturing enzymes and
neurotransmitters that are
transported out to very ends of
their nerve-branches. Chemo
receptors is a sensory receptor
that is involved in smell and/or
taste. They convert a chemical
signal into an action potential.
Knowing the taste of spaghetti is
controlled by direct chemo
receptors. The smell of spaghetti
is controlled by distant chemo
receptors. The resulting output
from the brain, the Central
Nervous System will make the
body indulge the food. This relates
back to means of survival.
http://medical-dictionary.thefreedictionary.com/Chemoreceptors
Travel of Neuron Impulses
The gap between two neurons is
called a synapse. The blue
bubbles in the diagram contain
chemicals that pour out in the
axon terminal of one neuron,
cross the synapse, and trigger a
nerve impulse in the second
neuron. The electrical signal is
changing from positive to
negative, and it moves the nerve
impulse along a neuron. Neurons
are in a fiber-like bundle called a
nerve, and the impulses are all
traveling in the same direction.
Gastrointestinal Physiology
• Stimulation
Modified smooth muscle cells
called interstitial cells of Cajal
cause spontaneous cycles of
slow wave potentials that can
cause action potentials in
smooth muscle cells. Ca
channels smooth muscles
open. Ions being secreted
during this process include:
H, K, Cl, HCO3, Na.
•Autonomic
Nervous System
Apart of the peripheral nervous
system. This system is divided into
two parts. Sympathetic Nervous
System and Parasympathetic
Nervous System. The
Parasympathetic Nervous System
controls digestion and absorption
of nutrients.
http://en.wikipedia.org/wiki/Autonomic
_nervous_system
Neurotransmitters Given off From the
Consumption of Spaghetti and Meat
Balls
•
Dopamine:
A hormone &
neurotransmitter that plays
an important role in
cognition, behavior, learning,
motor functions, sleep,
attention span, & mood.
•Serotonin
Monoamine
neurotransmitter that is
synthesized in neurons of
central nervous system &
in cells in intestinal walls.
This modulates anger,
mood, sleep, sexuality, and
appetite.
Increases with the
consumption of
carbohydrates (pasta).
http://www.faqs.org/nutrition/MetObe/Mood-Food-Relationships.html
•Nor epinephrine
Catecholamine,
chemical compounds
derived from the
amino acid, tyrosine.
Secreted by adrenal
medulla. This
neurotransmitter/hor
mone affects physical
& emotional
responses to stress.
Increases with the
consumption of meat.
Proteins are broken
down by the body into
amino acids like LTyrosine.