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Unit 2: ch 8
Terms in this set (20)
what is a tissue
A group of cells that act together to perform a specific function.
what are the four developed tissue types
epithelial, connective, muscle, nervous
which tissue type is most abundant
what are the three nonspecialized tissue types in the embryo?
endoderm, mesoderm, ectoderm
What is the extracellular matrix?
complex, nonliving fluid material between cells in a tissue
what are the two major protein types in the matrix?
collagen & elastin
what is the difference between regenerated tissue and scar tissue
can regenerate: phagocytic cells remove dead or injured cells & gaps are filled with new tissue.
can be replaced by scar tissue (keloid)
of the four tissue types, which two types have the greatest ability to regenerate
epithelial and connective
What is a body membrane
thin sheets of tissue that cover the body, line body cavities, and cover organs within the cavities in hollow organs.
what are the five general functions of body membranes?
Cover and protect the body's surface
Line body cavities or cover internal organs
Cover the inner surfaces of hollow organs
Anchor organs to each other or to bones
Secrete lubricating fluids
what is the difference between epithelial membranes and connective tissue membranes?
epithelial: contains many sweat and oil glands
connective: composed of different cells and a larger amount of extracellular matrix.
example of connective tissue membranes? Where in the body do we find it
synovial membrane, lines the cavity of a freely movable joint. For example, surrounds the joints of the shoulder, elbow, and knee.
what are the three types of membranes? where do we find each type?
cutaneous (the skin),
mucous (Membranes lining the respiratory, digestive, urinary, and reproductive tracts) ,
serous (Secrete a thin, watery fluid that lubricates organs)
what are the 3 type of serous membranes & what are their functions
Pleura: Surrounds each lung and lines thoracic cavity
Peritoneum: Covers abdominal viscera and lines abdominal cavity
Pericardium: Surrounds the heart
Two serous membranes surround each organ: the visceral membrane and the parietal membrane. Which of those membranes directly touches the organ
What is a neoplasm? What are the differences between a benign and malignant neoplasm?
Any abnormal cell growth-
benign: non cancerous
What do we call neoplasms of epithelial tissue? What do we call neoplasms of connective tissue?
some factors that lead to cancer
genetic factors, carcinogens/ mutagens,
what are some methods of detecting cancer
Chemotherapy and radiation therapy
Laser therapy and immunotherapy
common types of cancer therapies
surgery, chemotherapy, and radiation
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