Neuron Anatomy

Identify structure 1 and it’s function

Soma: houses nucleus, and organelles. Creates neurotransmitters. Metabolic and genetic control center.

Identify structure 2 and it’s function

Axon hillock: Action potentials are generated if threshold surpasses -55mV.

Identify structure 3 and it’s function

Dendrites: Receive signals from other neurons and transmit them to the soma. (Neurotransmitter receptors).

Identify structure 4 and it’s function

Schwann cell (in PNS): wraps around axon and forms myelin.

Identify structure 5 and it’s function

Myelin sheath: helps speed up conduction. Maintains strength of signal.

Identify structure 6 and it’s function

Nodes of Ranvier: Gaps with voltage-gated channels to amplify the signal. Allows for saltatory conduction.

Identify structure 7 and it’s function

Axon: signal conduction

Identify structure 8 and it’s function

Synaptic terminal: convert and electrical signal into a chemical signal.

Identify structure 9 and it’s function

Endoneurium: areolar connective tissue. Surrounds and protects single axon

Identify A,B, and C

Some (cell body) , Axon, Dendrites