11.1 cells, Tissue, Organs and
Systems Merit
In this power point presentation I
will be comparing and contrasting of
the four tissue types; epithelium,
muscle, connective tissue, and
nervous tissue.
By Esmail Ali
• Connective
Tissues
• Epithelium
• Muscle
• Nervous
tissue
Esmail Ali
Four tissue types
• Summary:
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Tissues are a group of cells similar in structure and function in an organism like a
plant or cell that together perform a type of functions.
These are:
Connective Tissues
Epithelium
Muscle
Nervous tissue
Connective tissues, connects and holds in place body organs and other tissues.
Epithelium covers the body surface and lines the channels of the body, such as
respiratory, alimentary, and urinary tract, that have openings to the outside.
Muscle is the tough elastic tissue that makes the body parts move. Muscles tissues
have the capability of contracting to produce force that causes motion. Nervous
tissues conduct nerve impulses throughout the body that enables the body to
coordinate its functions It forms the central nervous system and the peripheral
nervous system.
All of these animal tissue cells contain C molecules
Esmail Ali
Epithelium– Connective Tissue
• Connective tissue forms a structure which epithelial tissue rests and
within which nerve tissue and muscle tissue are embedded. Blood vessels
and nerves travel through connective tissue.
• Connective tissue functions not only as a mechanical support for other
tissues but also as an opportunity for communication and transport
among other tissues. The connective-tissue jelly supports the epithelium
and permits free diffusion of nutrients and metabolites. These two
functions of mechanical and nutritional support are basic to all connective
tissues.
Esmail Ali
Comparison between epithelial and connective tissue
Epithelial tissues are tightly packed sheets of cells. They to protect the body (ie. you skin),
absorb nutrients. For example in the blood vessels and intestines and fluids such as oil,
they are not used to connect any part of the body to anything else. They also cover
objects in the body such as the heart, lungs, and blood vessels.
Connective tissues are used to connect tissues and organs to each other. Adipose, a
connective tissue, connects the epidermis (which is the skin) to original tissues. They are
not tightly packed. There are six different connective tissues: Blood, Bone, Adipose (Fat),
Cartilage, Nerve, and loose connective tissue. Each having their own characteristics.
Esmail Ali
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All living cells have the ability to react to stimuli. Nervous tissue is specialised to
react to stimuli and to conduct impulses to various organs in the body which bring
about a response to the stimulus. Nerve tissue are all made up of specialised nerve
cells called neurons. Neurons are easily stimulated and transmit impulses very
rapidly
Esmail Ali
References
• http://www.emc.maricopa.edu/faculty/farabee/b
iobk/biobookanimalts.html
• http://facultyfiles.deanza.edu/gems/heyerbruce/
D.Body08.pdf
• http://www.biog11051106.org/demos/105/unit2/animalslides.html
• Book references: Tittle: Applied sciences student
book, section: Physiology of the human body
systems, date: 8/12/11, page: 193, Author: Lee
Hudson
Esmail Ali