Nervous System I
The primary cell that builds all the structures of the nervous system
Neuron
List the levels of organization of life from simplest to most complex.
Cell -> tissue -> organ -> organ system -> organism.
Neurons taking information back to your body are called what?
motor neurons/Efferent neurons
What do plants and animals have in common in terms of organization.
They both follow the same hierarchy of life.
What is the overall function of the brain?
Control center of the nervous system.
what does PNS stand for?
peripheral nervous system
What is an example of a specialized plant cell?
- tracheid
- epidermal
- parenchyma
There are approximately how many neurons in the human brain?
86 billion
What is an example of a plant organ system?
- Shoot
- Root
Name the the three main types of neurons.
Motor neurons, interneurons, sensory receptor neuron.
what is the central nervous system made of?
brain and spinal cord
Explain the endocrine system.
A series of glands which sends hormones into the bloodstream to cause bodily change.
what is the peripheral system made of?
nerves that branch off from the spinal cord.
What is the integumentary system another name for?
The skin.
Name the three functions of the nervous system.
- Receive information
- Respond to information
- Maintain homeostasis
Name all structures of the entire nervous sytem
Brain, Spinal cord, and Nerves
Which has more cells, Tissue or organs?
Organs.
What does a dendrite do?
Receives impulses from another neuron's axon terminal
Explain the relationship between structure and function.
Structure dictates function.
Explain a Reflex Arc
In a instance where the body needs to be saved quickly, an impulse will be sent to the spine to quickly be processed that back to point of contact via motor neuron.
What structure functions like a highway and transmits nerve impulses from the body to the brain and from the brain to the body?
The spinal cord
Surface Mucous Cells do what?
Secrete mucus to protect the stomach from gastric acid.
what does CNS stand for?
Central Nervous System
Name the stomach tissue which makes up the inner lining of the stomach.
The mucosa
What is one function that the hypothalamus serves in maintaining homeostasis. (We talked about this)
Maintaining body temperature.