science chapter 35
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| internal skeleton | endoskeleton
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| Composed of bone which is a strong and none brittle material and 206 individual bones in the Skelton | endoskeleton
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| ex) arms hands legs and feet | Jointed appendages
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| 1 bone meets another where movement occurs | Joints
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| elastic tissue that holds together the skeleton | Ligaments
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| What are the 2 groups of the nervous system | -CNS
-Peripheral nervous system
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| consist of the brain and the spinal cord | CNS
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| includes nerve that brings information to the brain and transmits commands from it | Peripheral nervous system
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| What are the 2 advantages of a closed circulatory system | - The body can maintain different circulation rates in different organs by changing the diameter of the blood vessels
- It allows blood to be pumped under pressure
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| humans are coelomates it means that we contain a large body cavity called a coelom and that develops within the mesoderm tissue within the embryo | Coelomates
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| What is in the coelom | is the large organs that supports there weight and prevents them from being deformed by body movements
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| What are the 2 advantages of being Endothermic | - it promits the body to maintain its activity at all time and in many different places regardless of the surrounding temperatures
- It promits to sustain strenuous activity
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| What are the 4 types of tissues | - Epithelial
- Connective
- Nerve
- Muscle
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| it Covers body tissue or surface | Epithelial Tissue
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| Protects tissues beneath from dehydration and physical damage | Epithelial Tissue
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| decides what substance enter and leave the cell through the body | Epithelial Tissue Controls diffusion
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| the cells are typically flat or thin | Epithelial Tissue
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| The cells are constantly being Replaced throughout your life | Epithelial tissue
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| Provides the body with its Structural building blocks and its most potent defenses | Connective Tissue
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| What are the 3 functions of Connective Tissue | - The cells of the Immune system and they defend the body from infection and possibly cancer
- Skeletal system: the fibro blasts
- These cells Accumulate/transport molecules
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| engulfs and dig bacteria and other microbes | In the immune system we have Macrophages
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| these make antibody's or they attack the viruses infected cells or cancer cells | Lymphocytes
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| the most common connective tissue they are flat and irregularly shaped cells and they also produce the scare tissue | Fibroblasts
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| its firm and flexible and very strong its at poisons of mechanical stress and it also covers the ends of the bones at joints | Cartilages
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| these are specialized for the transition of nerve implosive | Neurons
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| insulate the neurons and provide them with nutrient | Supporting cells
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| What are the 3 typed of muscle tissue | - smooth
- skeletal
- Cardiac
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| they are long and spinal shaped and they line our cavity’s | Smooth
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| these are striated and they move the endoskeleton | Skeletal
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| At the heart | Cardiac
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| What has neurons and supporting cells | Nerve tissue
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| maintaining a internal constant environment | Homeostasis
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| stable fluid environment is one of the key achievements of a multi cellular organism and it is maintained by complex set of philological meconium's | Homeostasis
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| What are the 2 feedback loops | Negative feedback
Positive feedback
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| this is the prevents a variable for deviating from its normal value which is called its set point | Negative feedback
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| this is a change in the variable that causes the body to drive the variable even further from the initial value | Positive feedback
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| small marble sized region in brain and the Brain Stem maintains homeostasis | Hypothalamus
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| What are the 2 types of signals | Electrical and chemical signals
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| last for brief period, carried by neurons | Electrical signal
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| slowly transmitted by bloodstream, last a long time | Chemical signal
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| a chemical messenger produced in one place a transported to another to produce physiological response | Body uses hormones
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| Specifically with receptor cell | Hormones
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Created by:
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