Biology and Behavior

Biology and Behavior - Biology and Behavior Chapter 3 WHY...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Biology and Behavior Chapter 3
Background image of page 1

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

View Full Document Right Arrow Icon
WHY?!?
Background image of page 2
Cells of the Nervous System Neurons and Glia (or glial cells) Neurons About 100 billion Many types Glia About 1 trillion (10 times as many as neurons!) Supporting cells. Scaffold Nourishment and removal of waste. n The above is a photo of a slide that was prepared by smearing bovine brain tissue on a slide and staining it. The dark specks in the background are glial cells that support the nerve cells called neurons. The large cells are neurons and you can see the nucleus in the center of them. Note the many cytoplasmic extensions from the central cell body. What is the function of nerve cells? Does their shape make sense in light of their function?
Background image of page 3

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

View Full Document Right Arrow Icon
Neruons Neurons – communication Soma – cell body Dendrites – receive Axon – transmit away Axon hillock – “decides” whether or not to transmit Myelin sheath – speeds up transmission Terminal Button – end of axon; secretes neurotransmitters Neurotransmitters – chemical messengers
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 20

Biology and Behavior - Biology and Behavior Chapter 3 WHY...

This preview shows document pages 1 - 5. Sign up to view the full document.

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