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science chapter 35

internal skeleton endoskeleton
Composed of bone which is a strong and none brittle material and 206 individual bones in the Skelton endoskeleton
ex) arms hands legs and feet Jointed appendages
1 bone meets another where movement occurs Joints
elastic tissue that holds together the skeleton Ligaments
What are the 2 groups of the nervous system -CNS -Peripheral nervous system
consist of the brain and the spinal cord CNS
includes nerve that brings information to the brain and transmits commands from it Peripheral nervous system
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
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
What is in the coelom is the large organs that supports there weight and prevents them from being deformed by body movements
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
What are the 4 types of tissues - Epithelial - Connective - Nerve - Muscle
it Covers body tissue or surface Epithelial Tissue
Protects tissues beneath from dehydration and physical damage Epithelial Tissue
decides what substance enter and leave the cell through the body Epithelial Tissue Controls diffusion
the cells are typically flat or thin Epithelial Tissue
The cells are constantly being Replaced throughout your life Epithelial tissue
Provides the body with its Structural building blocks and its most potent defenses Connective Tissue
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
engulfs and dig bacteria and other microbes In the immune system we have Macrophages
these make antibody's or they attack the viruses infected cells or cancer cells Lymphocytes
the most common connective tissue they are flat and irregularly shaped cells and they also produce the scare tissue Fibroblasts
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
these are specialized for the transition of nerve implosive Neurons
insulate the neurons and provide them with nutrient Supporting cells
What are the 3 typed of muscle tissue - smooth - skeletal - Cardiac
they are long and spinal shaped and they line our cavity’s Smooth
these are striated and they move the endoskeleton Skeletal
At the heart Cardiac
What has neurons and supporting cells Nerve tissue
maintaining a internal constant environment Homeostasis
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
What are the 2 feedback loops Negative feedback Positive feedback
this is the prevents a variable for deviating from its normal value which is called its set point Negative feedback
this is a change in the variable that causes the body to drive the variable even further from the initial value Positive feedback
small marble sized region in brain and the Brain Stem maintains homeostasis Hypothalamus
What are the 2 types of signals Electrical and chemical signals
last for brief period, carried by neurons Electrical signal
slowly transmitted by bloodstream, last a long time Chemical signal
a chemical messenger produced in one place a transported to another to produce physiological response Body uses hormones
Specifically with receptor cell Hormones
Created by: Lauren Bowers