MCB 32 lecture 13

Aceytlcholine

neurotransmitter associated with voluntary muscle control, attention, and arousal

pupil constriction

parasympathetic nervous system

collection of cell bodies in the periphery

postganglionic neuron

in the ANS the first neuron that is the efferent one thats leaving the central nervous system its called the

preganglionic neuron (AKA efferent neurons)

parasympathetic nervous system

rest and digest getting your body back to normal levels ur heart rate and blood pressure go down helps your organs secrete enzymes and hormones that are important for digesting food

cocaine acts on the

sympathetic nervous system

Neurons in the efferent nervous system have their cell bodies in the ____ and their axon terminals in the ____

CNS; Periphery

nicotinic receptors

Excitatory when ACh binding occurs

which part of the brain is likely to control the autonomic nervous system?

MEDULLA OBLONGATA, Hypothalamus

Symp receptor target cell norepinephrine

a or B

muscarinic receptors

are normally activated by acetylcholine AGONISTS

sympathetic nervous system

fight or flight *excercise* help get heart rate up and your blood flowing (it is activate to get all the rest of your organs ready for activity)

autonomic nervous system

it controls organ function

where are the neurons for the parasympathetic system located?

located in the brainstem or in the very, very, bottom of the spinal

Parasymp receptor target after acetylcholine

mACHR

the postganglionic neurons cause complex changes in the target organs/tissues, not just graded potentials. What type of receptors are likely on the target cells?

metabotropic receptor GPCRS

where are the neurons for the sympathetic system located?

middle

which of the following structures of an autonomic neuron is NOT located within the autonomic ganglion?

the cell body of preganglionic neurons

autonomic ganglion

the col lection of synapses between the pre- and post-ganglionic nerve fibers