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Science Revision Term 1 2023 - The Nervous System - Coggle Diagram
Science Revision Term 1 2023 - The Nervous System
Nervous System Response Model
Neurons
Parts of the Brain
Disease Types
Genetic
Genetic diseases are caused by altered genes passed on from one family member to the next through birth; diseases such as cystic fibrosis or Huntington's disease.
Environmental
Environmental conditions which cause disease that are not related to pathogens; inhalation of excessive dust or smoke, or exposure to radiation.
Pathogens
Viruses
Are classified as non-living organisms.
Use DNA or RNA to connect to cells and provide instructions for replication (method of reproduction).
100x smaller than bacteria; are the smallest type of pathogen.
Fungi
Are beneficial to the environment because they decompose deceased organic matter.
Infect and reproduce by the spreading of spores which occurs in a damp and humid place - relating to locations where Fungi can cause disease.
Are sometimes visible in places where they are able to grow, such as in the soil or on the body.
Bacteria
All bacteria are unicellular, and can be either eukaryotic or prokaryotic (types of cells).
Reproduce through the process of binary fission, in which the cells divide gradually over time into two (being unicellular organisms).
Can be classified into groups by the shape of the cell. These cells can be Cocci (spherical), Bacilli (rod-shaped) or spiral-shaped.
Protists
Are prominently unicellular organisms, but some are multicellular.
Protists reproduce through either gradual division of cells (as unicellular organisms) known as binary fission or sexual reproduction which occurs during the haploid and diploid sections of their lifecycle.
Protists help the environment around us by helping plants inhale carbon dioxide to produce oxygen into the atmosphere.
Habits
Diseases that are caused by lifestyle habits which result in lack or excess of bodily requirements; diseases such as diabetes or obesity.
Nervous System
Peripheral Nervous System
THe
Central Nervous System
Spinal Cord
The long stem in the back of the body that is key to the skeletal structure of the body, but per the CNS is the part that connects the brain to the PNS.
Brain
Is the control center of the nervous system; is the part that ultimately receives messages and produces the plan to return the body to homeostasis and react to stimuli.
The Immune System
Negative Feedback Loop
Homeostasis
Endocrine System
Function:
Works with the nervous system to respond to stimuli by creating hormones in the body; hormones have other functions in the body as well. The medium through which the two systems are linked is the hypothalamus.