Neuro 1

Question 1

equilibrium potential at normal ICF and ECF conc.

Answer 1

-90 mV

Question 2

membrane potential

Answer 2

-70mV

Question 3

Na-K ATPase

Answer 3

sets up conc. gradients that ultimately determine membrane potential

Question 4

afferent division

Answer 4

sends info towards the CNS (sensory)

Question 5

efferent division

Answer 5

takes info from the CNS to target cells (motor)

-usually have axon terminals or varicosities

Question 6

enteric nervous system

Answer 6

can act autonomously or can be controlled by CNS through the autonomic division of the PNS

Question 7

neurons

Answer 7

basic signalling units of the nervous system

Question 8

glia

Answer 8

support cells

Question 9

soma/cell body

Answer 9

considered the control center with process that extend outward to dendrites and axons

Question 10

dendrites

Answer 10

receive incoming signals from neighbouring cells

Question 11

axons

Answer 11

carry outgoing signals from the soma to target cells

Question 12

presynaptic terminals

Answer 12

output portion of a neutron and contain the transmitting elements necessary to communicate with an adjacent neuron

Question 13

interneurons

Answer 13

complex, branching neutrons that facilitate communication between neurons

Question 14

nerves

Answer 14

bundles of peripheral neurons

Question 15

The axon is specialized to convey chemical and electrical signals that require…

Answer 15

a variety of different types of proteins

Question 16

how does the axon get the proteins it needs to convey signals?

Answer 16

it lacks ribosomes and ER necessary for protein production so it’s all produced in the cell body and transported to axon