Nervous System Part I Review HMS 2014-2015. ??? The process by which an organism’s internal environment is kept stable in spite of changes in the external.

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Presentation transcript:

Nervous System Part I Review HMS

??? The process by which an organism’s internal environment is kept stable in spite of changes in the external environment

homeostasis The process by which an organism’s internal environment is kept stable in spite of changes in the external environment

??? The basic unit of structure and function in all living things is a …

cell The basic unit of structure and function in all living things is a …

??? A structure composed of different kinds of tissue Heart, lungs, brain

organs A structure composed of different kinds of tissue Heart, lungs, brain

??? A group of similar cells that perform the same function

tissue A group of similar cells that perform the same function

??? A group of organs that work together to perform a major function Circulatory, respiratory, digestive

Organ system A group of organs that work together to perform a major function Circulatory, respiratory, digestive

??? Least complex Most complex

cells ??? Least complex Most complex

cells ??? tissues Least complex Most complex

cells ??? tissues organ Least complex Most complex

cells Organ system tissues organ Least complex Most complex

What is part A?

A=Dendrites

What do dendrites do?

A=Dendrites Dendrites carry nerve impulses toward the cell body

What is Part B?

B=Cell Body

What does a neuron cell body do?

B=Cell Body The cell body contains the nucleus

What is Part C?

C=Axon

What does an axon do?

C=Axon Axons carries nerve impulses away from the cell body

??? Which type of neuron carries impulse from the brain/spinal cord (CNS) to muscle or gland

Motor neuron Which type of neuron carries impulse from the brain/spinal cord (CNS) to muscle or gland

??? This type of neuron is found in the brain/spinal cord Processes messages

interneuron This type of neuron is found in the brain/spinal cord Processes messages

??? This type of neuron carries impulses towards the brain/spinal cord (CNS)

Sensory neuron This type of neuron carries impulses towards the brain/spinal cord (CNS)

??? How does a nerve impulse travel between neurons (from neuron to neuron)

Chemical impulse How does a nerve impulse travel between neurons (from neuron to neuron)

What are the 3 functions of the nervous system?

1 _______ information 2 _______ to information 3 maintains ___________

What are the 3 functions of the nervous system? 1 receives information 2 responds to information 3 maintains homeostasis

??? A specialized cell of the nervous system that sends and receives information

neuron A specialized cell of the nervous system that sends and receives information

??? These messages are transmitted from neuron to neuron

impulses These messages are transmitted from neuron to neuron

??? This change or signal in the environment makes an organism react

stimulus This change or signal in the environment makes an organism react

What is the correct order an impulse travels on a neuron ______________  __________________  _________________

What is the correct order an impulse travels on a neuron dendrite  cell body  axon

??? The small space between neurons

synapse The small space between neurons

??? Another name for a nerve cell

neuron Another name for a nerve cell

??? A reaction or reflex

response A reaction or reflex