D
Dillon Ward
So I sit here at 1 in the morning e-mailing my homework to you because this
is the first time that My internet server has woken up and allowed me to
send an e mail, i realze that its monday but ive been trying to E mail you
since saturday with my 11 histology questions that i did not pass in on
friday during class. So, here they are.
1. Histology is the study of tissues mainly under a microscope so we can
determine the differences between certian types of cells. One reason it
might be impotant to know about histology is because with histology it is
easy to distinguish the difference between plant and animal cells. Another
reason it can be important is because certian cells are in certian places so
if your looking in say at the digestive track, you would find epithelial
tissue where as if you looked at the brain you would find nerve tissues.
2. The four main types of tissues that make up our bodies are 1. Epithelial
tissue, which helps the body from drying out and protection from pathogens,
2. Connective tissue which provides our body with support, protection, and
connective tissues such as bones make blood cells. 3. Nervous tissue, which
conduct nerve impulses or in other words tells your body if somthing hurts,
somthings to hot, or somthing along those lines, 4. is muscle Tissue which
contain actin and myosin which allow the body to move.
3. The two ways that epithelial tissues are classified are the shape and the
layering of the tissues.
4. Simple squamous epithelium- one layer, flattened cells, not so good at
proctecting.
Stratified squamous epithelium- many layers, good at protection
Cuboidal epithelium- Single layer, cube shaped, found in glands funtion
is secreation
Columnar epitheluim- rectangle shaped long and wio\de, found in mucus
to protect and rid of pathogens.
Pseudostratified columnar epithelium- many layers, lines reproductive
tract and air passages, even though said to have many layers, no true
nmumber because its not really cell touches basment membrane.
Tranitional Epithelium- changes a lot, response to tension on the
urinary bladder the uterus, and part of the urethra organs that need to
stretch.
5.The matrix of the connective tissue is so important because the matric is
what makes the fibers and cells that hold things together and allows
flexibility and strength. Collagen is important because it gives the fibers
flexibility and strength. Elastin may not be strong but alows for stretching
of ligaments and tendons and what not, recticular fibers are good for
support because they are thin and branched.
6. Fat tissue belongs to the Adipose tissues and the job of the fat cells is
to insulate and to keep the body warm.
7. A cartilage cell is called a chondrocyte and it is surrounded by a soid
yet flexible matrix that allows movement and protection at the same time
8. The three types of cartilage found are hayline cartilage, elastic
cartilage, and fibrocartilage. Hyline- Found in the nose and at the ends of
long bones. Elastic- found in your outer ear. Fibrocartilage- found in
between the vertebre and wedges in the knee joint.
9. The extracellular matrix of blood is plasma and it differs from the other
extracellular matrices because it is not made by the cells of tissue. Its
just a mixture of different types of molecules.
10. Skeletal muscle- Voluntary muscle, multi nucleated, is striated. Smooth
Muscle- Involuntary muscle, spindle shaped fibers, and its uninucleated.
Cardiac muscle- Striated- Involuntary, uninucleated.
11. The type of tissue that neuroglia cells support the nervous tissue and
the neuroglia cells Provide structure to the nervous system and allow the
neurons to work.
is the first time that My internet server has woken up and allowed me to
send an e mail, i realze that its monday but ive been trying to E mail you
since saturday with my 11 histology questions that i did not pass in on
friday during class. So, here they are.
1. Histology is the study of tissues mainly under a microscope so we can
determine the differences between certian types of cells. One reason it
might be impotant to know about histology is because with histology it is
easy to distinguish the difference between plant and animal cells. Another
reason it can be important is because certian cells are in certian places so
if your looking in say at the digestive track, you would find epithelial
tissue where as if you looked at the brain you would find nerve tissues.
2. The four main types of tissues that make up our bodies are 1. Epithelial
tissue, which helps the body from drying out and protection from pathogens,
2. Connective tissue which provides our body with support, protection, and
connective tissues such as bones make blood cells. 3. Nervous tissue, which
conduct nerve impulses or in other words tells your body if somthing hurts,
somthings to hot, or somthing along those lines, 4. is muscle Tissue which
contain actin and myosin which allow the body to move.
3. The two ways that epithelial tissues are classified are the shape and the
layering of the tissues.
4. Simple squamous epithelium- one layer, flattened cells, not so good at
proctecting.
Stratified squamous epithelium- many layers, good at protection
Cuboidal epithelium- Single layer, cube shaped, found in glands funtion
is secreation
Columnar epitheluim- rectangle shaped long and wio\de, found in mucus
to protect and rid of pathogens.
Pseudostratified columnar epithelium- many layers, lines reproductive
tract and air passages, even though said to have many layers, no true
nmumber because its not really cell touches basment membrane.
Tranitional Epithelium- changes a lot, response to tension on the
urinary bladder the uterus, and part of the urethra organs that need to
stretch.
5.The matrix of the connective tissue is so important because the matric is
what makes the fibers and cells that hold things together and allows
flexibility and strength. Collagen is important because it gives the fibers
flexibility and strength. Elastin may not be strong but alows for stretching
of ligaments and tendons and what not, recticular fibers are good for
support because they are thin and branched.
6. Fat tissue belongs to the Adipose tissues and the job of the fat cells is
to insulate and to keep the body warm.
7. A cartilage cell is called a chondrocyte and it is surrounded by a soid
yet flexible matrix that allows movement and protection at the same time
8. The three types of cartilage found are hayline cartilage, elastic
cartilage, and fibrocartilage. Hyline- Found in the nose and at the ends of
long bones. Elastic- found in your outer ear. Fibrocartilage- found in
between the vertebre and wedges in the knee joint.
9. The extracellular matrix of blood is plasma and it differs from the other
extracellular matrices because it is not made by the cells of tissue. Its
just a mixture of different types of molecules.
10. Skeletal muscle- Voluntary muscle, multi nucleated, is striated. Smooth
Muscle- Involuntary muscle, spindle shaped fibers, and its uninucleated.
Cardiac muscle- Striated- Involuntary, uninucleated.
11. The type of tissue that neuroglia cells support the nervous tissue and
the neuroglia cells Provide structure to the nervous system and allow the
neurons to work.