STRUCTURE = NERVOUS SYSTEM - created from Mind Map

Page 1

CENTRAL NERVOUS SYSTEM

PERIPHERAL NERVOUS SYSTEM

CONTROLS

CONSISTS

Thought

Movement

Emotion

Desire

Breathing

Heart rate

Body Temperature

SPINAL CORD

BRAIN

The retina, optic nerve, olfactory nerves, and olfactory epithelium are sometimes considered to be part of the CNS alongside the brain and spinal cord. This is because they connect directly with brain tissue without intermediate nerve fibers

carries information between the brain and body

connects with the nerves of the peripheral nervous system (PNS)

Motor commands from the brain travel from the spine to the muscles and sensory information travels from the sensory tissues — such as the skin — toward the spinal cord and finally up to the brain.

contains circuits that control certain reflexive responses

Involuntary movement

Generate > complex movements (walking)

Four Lobes

Central Control = Body

Regions

Temporal lobe (Green)

Occipital lobe (Black)

Parietal lobe (Yellow)

Frontal lobe (Blue)

physical motion

secretion of hormones

creation of memories

sensation of emotion.

Coordinates activity

Amygdala

Thalamus

Hypothalamus

Medulla oblongata

Corpus callosum

Broca's area

Cerebellum

Basal ganglia

Primary role = connect CNS

Any part of the (NS) = outside brain and spinal cord

Allows = Brain/Spinal cord= Receive/Send info to other areas of the body = allows us to react to stimuli in our environment

Axons/bundles of axons from neuron cells = make up = nerves in PNS

Division

Organs

Limbs

Skin

Somatic Nervous System

Autonomic Nervous System

Responsible

Types

Carrying sensory/ motor info = to/ from = CNS

Soma = "body."

Transmitting sensory information

Transmitting voluntary movement

Sensory neurons

Motor neurons

AKA = afferent neurons

Carry info = from the nerves to CNS

Allow = take in sensory info= send = brain/spinal cord

AKA = efferent neurons

Carry info = from brain/spinal cord = to muscle fibers throughout the body

Allow = take physical action = in response to stimuli in the environment

Responsible

Types

Regulating involuntary body functions

Controls = aspects of the body = not under voluntary control

Allows = functions =occur= without conscious thought

Blood flow

Heartbeat

Breathing

Sympathetic system

Parasympathetic system

Regulates = flight-or-fight responses

Prepares = body to expend energy => deal with potential threats = environment

Action required = triggers response

Allows = body =respond quickly = situations that require immediate action

Speeding heart rate

Increase Breathing rate

Increase Blood flow to muscles

Maintain normal body functions

Conserve physical resources

Threat has passed

Allows = body= return = return normal resting state

Slow Heart rate

Reduce blood flow to muscles

Constrict pupils