Chapter 49: Nervous system Flashcards
1
Q
What is brainbow
A
- A technique that allow researchers to develop detailed maps of information transfer between regions of the brain
2
Q
How mayny neurons in human brain
A
- About 10 billion
3
Q
What are nerves
A
Bundles that consists of axons of multiple cells
4
Q
What type of nerve cord invertebrates and vertebrates have
A
- Invert: ventral nerve cord
- Vert: dorsal nerve cord
5
Q
What is cerebrospinal fluid
A
- Filtered from blood and act like a cushion to the brain and spinal cord as well as provide nutrients and remove wastes
6
Q
Gray matter and white matter in the brain
A
- Gray matter (neuron cells, dendrites, unmyelinated axons)
- White matter (myelinated axons)
7
Q
Two components of PNS
A
- Motor system (voluntary, skeletal muscle)
- Autonomic nervous system (involuntary, cardiac and smooth muscles)
8
Q
What components does autonomic nervous system of PNS has
A
- Sympathetic (fight or flight)
- Parasympathetic (rest and digest)
9
Q
What’s enteric nervous system control
A
- Digest, pancrease, gallbladder
