Module 11 - Autonomic

Question 1

Autonomic Nervous System

Answer 1

Autonomic Nervous System
Relay b/w CNS and organs
Unconscious
Preganglionic neuron of CNS synapses to Postganglionic neuron of PNS
Sensory from special and somatic senses
Motor neurons to visceral body activities to increase or decrease

Question 2

Motor Pathway

Answer 2

Motor pathway
Pre-ganglion – myelinated
Autonomic ganglion – synapse with multi neurons here
Post-ganglion – unmyelinated
Target organ

Question 3

Sympathetic Neurotransmitters

Answer 3

Sympathetic Neurotransmitters
Sympathetic – Cholinergic neurons – acetylcholine – short and local Adrenergic neurons – norepinephrine – long and wide

Question 4

Parasympathetic Neurotransmitters

Answer 4

Parasympathetic – acetylcholine

Question 5

ANS controls

Answer 5

Controls:
Lungs
Heart
Smooth muscle
Exocrine and endocrine gland

Question 6

Sympathetic

Answer 6

Sympathetic – “fight or flight” - Excite
Carries signal for body alert
Pre-ganglion in Spinal cord
Use ganglia for communication
Ganglia form a chain that extends alongside the spinal cord
One preganglionic neuron synapses on multiple Postganglionic neurons – amplify effect of the original synapse
Adrenal gland releases norepinephrine (sim to epinephrine) in blood
Control of your heart rate, blood pressure, digestion, urination and sweating, among other functions
Responding to danger or stress

Question 7

Sympathetic Neurotransmitters Pre and Post

Answer 7

Pre-Neurotransmitter –acetylcholine
Post Neurotransmitter – norepinephrine

Question 8

Sympathetic Reaction

Answer 8

Eyes – enlarge pupils – more light – better vision
Heart – increase rate – deliver more O2 to body
Lungs – relax airways – more O2 diffused in
Digestive – slow down – no energy wasted
Liver – used energy stores

Question 9

Adrenal Glands

Answer 9

Adrenal gland releases norepinephrine (sim to epinephrine) in blood

Question 10

Parasympathetic

Answer 10

Parasympathetic – “rest and digest” – inhibit
Return to homeostasis
Pre-ganglion in Brain and coccyx
Post-ganglion to organ

Question 11

Parasympathetic Neurotransmitters Pre and Post

Answer 11

Pre-Neurotransmitter – acetylcholine
Post Neurotransmitter – acetylcholine

Question 12

Parasympathetic Reaction

Answer 12

Eyes – constricts pupil – less light – normal vision
Heart – slows – resting
Lungs – constricts bronchi – normal diffusion of O2
Digestion – restarts
Liver – secretes bile again
Bladder – contract – want to go pee