psychology term 1 exam flashcards

coordination

IV

the thing that you are changing in an expermient

the types of neurones

Sensory, Motor and Interneurone

what is a neurone

Individual nerve cells

parts of a neurone

dendrites, cell body (soma), Axon, nucleus, myelin sheath, axon terminals

what is the myelin sheath

A white, fatty insulating layer that wraps it self around the axon that helps speed up transmission of nerve impulses.

DV

the thing that you are measuring in an experiment

Dendrites

receive signals from other nueonres/other cells

cell body/soma

Where the nucleus lies and where proteins are made

Axon

Long thin structure where action potentials are generates, The transmitting part of the neurone

Nucleus

The control centre of the cell

Symptoms of MS

problems with motor control, visual problems, problems with coordination and memory loss

Multiple Sclerosis

autoimmune disease where the body mistakenly attacks the brain and spinal cord.

MS damages _______

myelin. when damages messages can no longer be clearly transmitted from the brain and spinal cord to other parts of the body.

sensory neurone/afferent neurone

carry impulses from sense organs to CNS. receive messages about a change in the environment and transmits information to the interneurone

Interneurone

located ONLY IN CNS and carry signal from a sensory neurone to motor neurone. connection between other types of neurones. processes impulses in brain + spinal cord