Connective tissue is the most abundant tissue in the body and connects other tissues. There are several types of connective tissue including areolar, adipose, fibrous, bone, cartilage, blood, and hematopoietic tissue. Bone is one of the most highly specialized forms of connective tissue and has a hard, calcified matrix. Cartilage differs from bone in having a firm gel-like matrix. Muscle tissues include skeletal, cardiac, and smooth muscle which differ in their voluntary or involuntary functions and locations in the body.
1. Connective Tissue
Mr. Hunter
Kennedy High School
10/17/2012
Anatomy and Physiology
2. Anatomy and Physiology
10/18/2012
• OBJECTIVES
• SWBAT
• COMPARE AND CONTRAST DIFFERENT FORMS
OF CONNECTIVE TISSUE
• ANAYLYZE THE COMPONENTS OF CONNECTIVE
TISSUE
• Bell Ringer: What type of tissue can areolar
connective tissue develop into when it accumulates
and stores lipids?
3. Connective Tissue General
• Most abundant and widely
Information distributed tissue in the body.
• More variation than any other tissue
type.
• Location(s): skin,
membranes,muscles, bone, nerves
and all internal organs
• Function(s): connects tissue to each
other and forms a supporting
framework for the body as a whole
and for individual organs.
• Question(s): What is the most
abundant tissue type in the body?
• What is the function of connective
tissue?
4. • Differs from epithelial tissue in the
Connective Tissue General arrangement and variety of cells
Information found in the matrix – intracellular
material
• Structural quality, appearance of the
matrix and fibers determines the
qualities of each type of connective
tissue.
• Major types of connective tissue:
• 1. Areolar 6. Blood
• 2. Adipose 7. Hematopoietic
• 3. Fibrous
• 4. Bone
• 5. Cartilage
5. • Areolar (loose) connective tissue is
Areolar and Adipose the most widely distributed
Connective Tissue connective tissue.
• Helps keep the organs of the body
together.
• Consists of webs of fibers and a
variety of cells embedded within a
matrix of soft,sticky gel.
• Collegen fibers: strong and flexible
• Elastic fibers: stretchy, helps tissue
return to shorter length after being
stretched.
• Question(s): What is the most widely
distributed connective tissue?
• What are two main fiber types?
6. • Fascia: fibrous material that helps
Areolar and Adipose bind the skin muscle, bones and
Connective Tissue other organs of the body together.
• It is mainly areolar tissue that
composes fascia.
• Areolar tissue can develop into
adipose tissue when it begins to
store lipids.
• Adipose tissue secretes hormones
that help regulate metabolism and
fuel storage in the body.
• Question(s): What is fascia?
• Wht type of tissue can areolar tissue
develop into when large quantities
of lipids are store within its cells?
7. • Reticular connective tissue is
Areolar and Adipose composed of thin, delicate webs of
Connective Tissue collagen fibers called reticular fibers
• Found in bone marrow. It helps to
support blood forming cells.
• Dense Fibrous Connective Tissue
• Composed of thick bundles of
strong, white collagen fibers
arranged in parallel rows.
• Found in tendons (anchors muscle to
bone), provides great strength and
flexibility. It does not stretch.
8. REVIEW
Anatomy and Physiology
10/17/2012
1. What is the most widely distributed tissue in the body?
2. Where is connective tissue located?
3. What is the function of connective tissue?
4. How does connective tissue differ from epithelial tissue?
5. What are the seven major types of connective tissue?
6. What are the two types of fibers found in areolar connective
tissue?
7. What is reticular connective tissue composed of and where is it
found?
8. What are the properties and location of dense fibrous connective
tissue?
9. What type of tissue compose fascia?
9. • Bone is one of the most highly
Bone and Cartilage specialized forms of connective
tissue.
• The matrix is hard and calcified.
• It forms numerous structural
building blocks called osteons or
Haversian systems.
• Bones are a storage area for calcium
and provide support and protection
for the body.
• Questions(s): What are the names of
the numerous structural building
blocks found in the bone tissue
matrix?
10. • Cartilage differs from bone in that its
Bone and Cartilage matrix is like a firm plastic or
gristlelike gel.
• Cartilage cells, chondrocytes are
found in many tiny spaces
distributed throughout the matrix.
• Question(s): How does cartilage
differ from bone?
• What are the names of cartilage cells
and where are they found?
11. • Blood is the most unusual form of
Blood and Hematopoietic
connective tissue because the matrix
Tissue
is in a liquid state.
• It has transportation and protective
functions
• Red and white blood cells are the
cell types common to blood.
• Hematopoietic tissue is bloodlike
connective tissue located:
1. Red marrow cavities of bones
2. Spleen
3. Tonsils
4. Lymph nodes
Function: formation of blood cells and
defense against diseases.
12. • Muscle cells have a higher degree of
contractility than any other tissue
Muscle Tissue
cells.
• If injured muscle cells are slow to
heal and are replaced by scar tissue.
• There are three types of muscle
tissue:
1. Skeletal
2. Cardiac
3. Smooth
Question(s): If injured, what happens to
muscle tissue?
What are the three types of muscle
tissue?
13. • Skeletal or striated muscle tissue is
voluntary because they are
Muscle Tissue
controlled at will.
• Individual cells of this tissue type are
long and threadlike . They are often
called fibers. The cells will be
multinucleated.
• Skeletal muscles are attached to
bones. When contracted ,the
muscles produce controlled and
voluntary movements.
• Question: What are the
characteristics of striated skeletal
tissue?
14. • Cardiac muscle tissue forms the
walls of the heart and produces the
Cardiac Muscle Tissue
heartbeat.
• Have light striations similar to
skeletal muscle tissue.
• Contain darker bands called
intercalated disks.
• The fibers branch and connect to
other cardiac branches within the
heart to form a mass of contractile
tissue.
15. • Smooth(visceral) is involuntary.
SmoothMuscle Tissue • Smooth muscle cells appear long
and narrow and they lack cross
striations.
• They only have one nucleus per cell.
• This type of tissue helps to:
1. Form the walls of blood vessels
2. Hollow organs such as the
intestines
3. Other tube shaped structures in the
body.
Contractions can help move food
through the digestive tract and
change blood vessel diameter.
16. REVIEW
Anatomy and Physiology
10/18/2012
1. What type of connective tissue is one of the most highly
specialized forms?
2. Describe the matrix of bone.
3. How is cartilage different from bone?
4. Where would the body obtain more calcium if it needed an
additional supply?
5. Why is blood an unusual form of connective tissue?
6. What are the two main functions of blood as a connective tissue?
7. What type of connective tissue is found in the red marrow cavities
of bones and the spleen?
8. What happens to muscle tissue if it is injured?
9. What are the three kinds of muscle tissue?
10. Describe the function and location of skeletal, cardiac and smooth
muscle.