There are four main kinds of tissues that compose the body
connective, muscle, nerve, epithelial
forms portective coverings?
they occur through the entire body, inside and out?
they cover organs, form linings of cavities and organs, line mouth, and stomach
always have a free side exposed or open space ex: mouth, stomach
reproduce readily, best reproducer
can be found in one layer or several layers, or one thin layer
when they occur in several layers they are tightly packed with little material between, are as protective barriers
only one layer thinck substances can pass easily through them
lining, covering, things pass through, (flat)
cube shaped, lining, covering
longer than wide
most abundant, more different kinda than epitheial, muscle and nerve tissue
what regenerates well? exceptions?
connective. are cartilage and fibrous tissue. tenons, ligaments and cartilage are slow to heal and regrow
what does adipose do?
stores fat for body
fuction is protection, insulation, and storage of nutrients for later use
adipose protects what?
joints, bones and organs
strong tissue that appears as fibers in parallel rows?
fibrous and cartilage
is not striated like skelated
stong tissue makes up?
tendons and ligaments
function is what?
muscle to bone
bone to bone
looks like parallel rows
fibrous and cartilage
fibrous and cartilage
hard, calcified tissue
most rigid of all tissue
function, supports and protects
like a tree ring
unusal form of tissue because it is liquid
function is to transport oxygen
also called striated
have cross striations or stripes
are voluntary because control of skeletal muscle contractions is what?
very slow to what?
function of skeletal?
frosms walls of heart
contractions of this tissue produce heart beact which you what?
looks similar to skeletal muscle tissue but the cross striations have what?
is also involuntary
smooth or visceral
no cross striations?
forms walls of blood vessels and intestines?
blood bessles and intestines do what?
regulates their diameter
contractions propel food, blood, etc
through tube like structures
function of smooth?
walls go in and out
involved in mitosis
coats and packages protein
where protein is made
lines respiratory tract
contains DNA and genes
engulfs nutrients and bacteria
cells often change size or numbers slightly to adapt to changes in the internal environment, what is the internal environment called?
cells can change size in response to what three things?
hormone signals, available nutrients, and use of the muscles
hypertrophy means what?
(excessive growth) increase in cell size
(without growth) decrease in cell size
(excessive cell forming) increase in cell reproducing
sometimes the changes are too drastic. the body loses the ability to control cell reproduction is called what?
anaplasis means what?
abnormal cell reproduction
anaplasis is the production of undifferentiated cells. The cells don't mature normally into specialized cells. This new mass of undifferentiated cells is called a what?
neoplasm or tumor
benign neoplasm means?
harmless, capsule around it
malignant neoplasm means?
tumor without capsule, spreading through blood
spreading of malignant tumor
nerve tissue does what?
basic function is communication between body structures and control of body function.
Consists of nerve cells or what?
consists of nerve cells and special supporting cells called what?
the three parts of a neuron are the what?
cell body, the axon and the dendrite
tissues have varying capacity to do what?
repair or regenerate
most tissues are able to do what?
regenerate new material
what is the best and quickest at regeneration?
epithelial and connective
epithelial and connective are the best and quickest at regeneration except what?
what is limited and much slower at regeneration?
what is fibrous?
tendons, ligaments, cartilage and muscle
none or very limited repair are what tissue?
brains and spinal cord nerve tissue will not regenerate
some nerve tissue such as skin nerves can do what? But it takes how much time?
regenerate, a long time
what major groups of tissues are mentioned in this article?
ggive at least 3 reasons why women get cold more easily than men?
smaller, lower metabolic rate and fat around hips and thighs
why do women have a higher body-fat ratio?
help insulate bital organs and prevent core temperature of decreasing
where does excess fat accumulate in women?
hips and thighs
where does excess fat accumulate in men?
waist and upper torso
what tissue stores excess fat?
why do hands and feet get cold faster than your adbomen?
there is very little fat in hands and feet, most of the blood travels to your organs before it goes to hands and feet
standing, rather than sitting, will increase body heat by what percent?
list at least 6 things you could do to escape winter's chills?
dress in layers, stay away from caffeine, stand rather than sit, wear clothes, wear golves and wear a hat
the article states that caffeine constricts blood vessels, what type of muscle tissue would this involve?
alcohol and caffeine are also dehydrating. what organ would be affected?
will smoking warm you up? explain why or why not
no, constricts your blood vessels
one of the people quoted is physiologist Henry Lukaski. what is a physiologist?
someone that studies how things work
what musle tissue is found only in the walls of the heart?
what tissue is the most widespread in the body?
some tissues have structures called what?
what does (insert answer from above) do?
sweep the tissue clean
the three types of muscle tissue are what?
skeletal, viceral or smooth and cardiac