Biopsych - Lecture 1

Biopsych - Lecture 1 - BioPsych 15:28...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
BioPsych 15:28 Cells of the Nervous System o Neurons: specialized cells that are capable of sending and receiving chemical  signals There are different structural classes o Multipolar: motor neurons; “projection neurons in brain o Unipolar: sensory neurons o Bipolar: sensory neurons o Interneurons: in spinal cord and brain “Polarity” refers to the number of processes (out-growths) coming from  the cell body (refers to dendrites and axon) 100 billion neurons in the brain Only 10% of the total number of cells that make up our brain – the rest of the  brain is non-neuronal Neurons have a cell membrane o “Lipid Bilayer”: 2 layers of fat molecules o Proteins (receptors, channels, transporters) span the membrane,  communicating from the outside of the cell to the inside o Parts of a neuron: There are different types of neurons, but most have 4 main parts o Dendrite: receives information from other neurons Extend from the cell body (one type of “process”) Receptors (specialized proteins) for different neurotransmitters Branched to receive lots of input from different neurons Where chemical information from the environment is detected and  converted to electrical information Send information to the ell body where it is integrated
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

Biopsych - Lecture 1 - BioPsych 15:28...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online