the neuroendocrine system it’s all about messaging mr. ballard is cool
TRANSCRIPT
![Page 1: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/1.jpg)
The Neuroendocrine System
It’s all about messaging
Mr. Ballard is Cool
![Page 2: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/2.jpg)
1 part nervous, 1 part endocrine
Nervous Instant messaging
system Goes from point A to
point B and nowhere else
Endocrine Radio Broadcasts Sends the signal
everywhere, but only cells set to the “proper reception” pick it up
![Page 3: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/3.jpg)
Nervous system
Imagine you sending the message to another person.
Your phone is the brain- source of initial message
![Page 4: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/4.jpg)
Brain
Major brain components include Cerebrum Cerebellum Brains stem Thalamus Hypothalamus
Frontal lobe controls creativity and independent thought
![Page 5: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/5.jpg)
After you press send
The message goes through the relays
The other part of the CNS- Spinal Cord
Almost all signals go through here
Over 31 pairs of nerve endings
Cell Phone Towers
![Page 6: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/6.jpg)
The Other Person
They receive the message after from you and send a reply.
Peripheral nervous system
What does peripheral mean?
![Page 7: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/7.jpg)
Peripheral Nervous System
Two types Somatic
Moving your fingers Things you think to do
Autonomic Automatic Breathing Heartbeats
![Page 8: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/8.jpg)
Reflex Arch
The process where the stimulus is read before reaching the brain and causes a response.
The response makes the muscle move
StimulusStimulusStimulus Stimulus
Stimulus
![Page 9: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/9.jpg)
![Page 10: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/10.jpg)
![Page 11: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/11.jpg)
![Page 12: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/12.jpg)
Endocrine
Like the radioshow Transmits
everywhere at once Your brain
![Page 13: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/13.jpg)
Every cell can listen
But the only ones that hear it are the target cells
Hormones are the signals that are sent out They come at different frequencies (different
hormones)
![Page 14: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/14.jpg)
Nervous system
•Point-to-point control • Nervous control is electrical in nature and fast.
![Page 15: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/15.jpg)
Endocrine System
•Broadcasts hormonal messages to all cells
•Using secretion into blood and extra-cellular fluid.
•Requires a receiver - in the case of endocrine messages, cells have a receptor to receive the hormone
![Page 16: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/16.jpg)
Why do we need the endocrine system
Maintenance of the internal environment in the body (homeostasis)
Regulation of growth and development. Control, maintenance and instigation of
sexual reproduction
![Page 17: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/17.jpg)
Parts of the Endocrine System
Gland: An organ that secretes Two types of glands
Exocrine Glands: NONHORMONAL chemicals into DUCTS, transport chemicals inside/outside the body. Sweat glands, mucous glands, salivary glands, and
other digestive glands Endocrine Glands: DUCTLESS. Secrete
hormones into the bloodstream and extracellular fluids. Pituitary, Thyroid, Hypothalamus
![Page 18: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/18.jpg)
Hormones
Are a chemical signal, made in one place and delivered to another
Regulate the body’s activities Are secreted in small amounts Influence the activity of distant cells. Are essential to maintaining homeostasis.
![Page 19: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/19.jpg)
Target Cells
•Hormones circulate in blood, which reaches all cells. •Hormone usually affects target cells. •Target cells respond to a hormone because it has the appropriate receptors for the hormone.
![Page 20: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/20.jpg)
How do hormones work?
They DO NOT seek out a particular organ; the organ AWAITS their arrival
Cells receive the message via lock and key method either A- on the surface of the cell (membrane) B- Directly in the nucleus
![Page 21: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/21.jpg)
Hormones cont…
Cells only respond to certain hormones. The binding of hormone and receptor changes the
receptor shape That change activities around receptor. Hormone main effect- change enzymatic activities
in the cell.
![Page 22: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/22.jpg)
Two types of hormones
Steroid Hormones: Made from lipids and cholesterol Produced by the adrenal cortex, the ovaries and the
testis. ALL OTHER GLANDS PRODUCE AMINO ACID-
BASED HORMONES! Steroid hormones ENTER the cell and end up
binding directly with the nucleus. Receptor binds with DNA and alters cell activity Examples: male testosterone; female estrogen and
progesterone
![Page 23: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/23.jpg)
Two types of hormones cont…
Amino Acid-Based Hormones (PEPTIDE HORMONES)
CANNOT PASS through the membrane Sends message from OUTSIDE cell. Attach to receptors on membrane,
2 messengers: Primary (p) and secondary (s) One outside membrane to pass message To the second one inside the membrane
A single hormone or “p” can result in the formation of many “s” messengers.
![Page 24: The Neuroendocrine System It’s all about messaging Mr. Ballard is Cool](https://reader030.vdocuments.us/reader030/viewer/2022032606/56649e925503460f94b98836/html5/thumbnails/24.jpg)
Endocrine system maintains homeostasis
How does this system use the concept of homeostasis to regulate it?