Vocab
the body’s central command organ.
brain
extensions of the neuron where impulses are carried away from the cell body.
axon
The endocrine system functions by sending chemical signals.
What functions are handled by the cerebrum?
thinking, problem-solving
What is the role of the nervous system in the body?
to gather and respond to information
allows your brain to communicate with the rest of your body.
spinal cord
controls body functions and helps maintain homeostasis by using hormones.
endocrine system
The endocrine system helps regulate our blood sugar after we eat a meal.
True
What functions is the cerebellum responsible for?
sensory information, balance
What is an endocrine system disorder that could cause blood glucose levels to be higher than these levels at all times?
diabetes
is made of the structures that control the actions and reactions of the body in response to stimuli from the environment.
nervous system
chemical messenger made in one cell or tissue that causes a change in another cell or tissue in a different part of the body.
hormone
The central nervous system allows us to sense the environment.
False
What does the medulla, or brain stem, control?
involuntary processes such as heart and breathing rates, blood pressure, body temperature
What are some disorders of the nervous and endocrine system?
Endocrine system: type 1 diabetes; Nervous system: multiple sclerosis, Parkinson’s disease.
a cell that moves messages in the form of fast-moving electrical energy.
neuron
a group of cells that make special chemicals for your body.
gland
The spinal cord is part of the peripheral nervous system.
False
Describe the path of an impulse into and out of a neuron.
An impulse enters a neuron through a dendrite, moves through the cell body, and exits the neuron through the axon.
How would the endocrine system respond after a person digests a piece of fruit?
It will release more of the hormone that helps cells take glucose out of the blood.
usually a short, branched extension of the cell body
dendrite
How does a positive feedback mechanism differ from a negative feedback mechanism?
In positive feedback, a high level of a substance accelerates or increases levels of something. In negative feedback, a high level of a substance diminishes or decreases the next step or response.
How are the roles of the nervous and endocrine system related?
Both systems are responsible for helping the body to maintain homeostasis by providing a means to respond to internal and external stimuli.