MCAT Biology Help » Biology » Systems Biology and Tissue Types » Connective Tissue and Epithelium » Connective Tissue Types and Properties
Explanation:

Bone is considered a connective tissue. The hydroxyapatite crystal forms a generous amount of extracellular matrix, helping to connect the cells of the bone. This large amount of extracellular material is a defining characteristic of connective tissue.

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Nervous tissue carries electrical impulses through the body. Muscular tissue is involved in contraction. Epithelium lines the biological lumens and areas exposed to the external environment, including the tracts for respiration, digestion, and excretion. Endothelium lines the tracts that are fully contained in the body, namely the circulatory system and heart chambers.


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Example Question #1 : Connective Tissue Types And Properties


Which of the following connective tissues serves to link bone to bone?


Possible Answers:

Tendon


Ligament


Cartilage


Adipose


Correct answer:

Ligament


Explanation:

Ligaments serve to link bone to bone, mainly playing a role in stability rather than force transduction. Once a tendon has pulled on the bone, ligaments provide a mechanism for nearby bones to follow, allowing for a smooth and coordinated movement.

Tendons link skeletal muscle to bone. Cartilage is the main tissue of the ears and nose, and generally provides structure or biological cushioning. Adipose is fat tissue, responsible for storing water and nutrients for extended periods.


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Example Question #3 : Connective Tissue Types And Properties


Which of the following connective tissues serves to link skeletal muscle to bone?


Possible Answers:

Ligament


Adipose


Tendon


Cartilage


Correct answer:

Tendon


Explanation:

Tendons link skeletal muscle to bone. When skeletal muscle contracts and shortens, the tendon pulls the bone in the direction of the muscle contraction to propel movement.

Ligaments serve to link bone to bone, mainly playing a role in stability rather than force transduction. Cartilage is the main tissue of the ears and nose, and generally provides structure or biological cushioning. Adipose is fat tissue, responsible for storing water and nutrients for extended periods.


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Example Question #4 : Connective Tissue Types And Properties


Which of the following is not an example of connective tissue?


Possible Answers:

Adipose


Skin


Bone


Blood


Correct answer:

Skin


Explanation:

Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.

Any tissues can essentially be broken down into epithelium (or endothelium), muscle tissue, neural tissue, or connective tissue.


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Example Question #5 : Connective Tissue Types And Properties


Which of the following is a type of connective tissue?


Possible Answers:

Nerves


Muscles


Skin


Blood


Heart


Correct answer:

Blood


Explanation:

Connective tissues are defined as cells suspended in an expansive extracellular matrix. For blood, plasma serves as the matrix that suspends erythrocytes. Other types of connective tissue include cartilage, bone, and adipose.

Any kind of muscle, nervous, or epithelial cell is in its own category, separate from connective tissue. Skin is a type of epithelium, and the heart is composed of cardiac muscle tissue.


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Example Question #1 : Connective Tissue Types And Properties


In what parts of the adult human body would you be most likely to find chondrin?


Possible Answers:

Within haversian canals


The ears (pinna) or nose


Femoral diaphyses


The skull


Correct answer:

The ears (pinna) or nose


Explanation:

Chondrin is the elastic matrix found in cartilaginous connective tissue. In order to identify where chondrin can be found in the body, we should identify where in the body we would find cartilage.

The ears and nose are some of the few structures on the adult human body that contain cartilage. Other cartilage structures include the vertebral discs, public symphysis, menisci in the knees, and most sternocostal joints.

The human skull is formed by intramembranous ossification, a process in which mesenchymal stem cells form osteoblasts and eventually bone. Note that there is no cartilage involved in this process. Long bones, such as the femur, are formed by the process of endochondral ossification, in which cartilage is converted into bone. This process occurs long before adulthood, however, and would not be a reasonable answer in this case. Diaphyses of bones are composed of compact and spongy bone. Haversian canals house blood vessels, nerves, and lymph within bone.


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Example Question #7 : Connective Tissue Types And Properties


What is the definition of tissue?


Possible Answers:

Cells that all perform a similar function


An organized collection of many types of cells


A group of cells suspended in a noncellular matrix


Cells that all display similar traits


Living cells suspended in a living or nonliving matrix


Correct answer:

Living cells suspended in a living or nonliving matrix


Explanation:

Tissue, by definition, is made up of groups of similar cells. However, these cells may be suspended in a living, cellular matrix, or in a nonliving, noncellular matrix. For example, muscle tissue is composed of tightly packed cells in an organized matrix; however, blood is comprised of scattered cells in an aqueous plasma matrix. It is important to remember that all living components of the body are made entirely of tissue, so bone, blood, fat, etc. must fit the definiton of tissue.


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Example Question #8 : Connective Tissue Types And Properties


What are the three types of cartilage?


Possible Answers:

Hyaline cartilage, rigid cartilage, and juvenile cartilage


Hyaline cartilage, juvenile cartilage, and maxillary cartilage


Maxillary cartilage, formative cartilage, and elastic cartilage


Fibrocartilage, rigid cartilage, and maxillary cartilage


Elastic cartilage, hyaline cartilage, and fibrocartilage


Correct answer:

Elastic cartilage, hyaline cartilage, and fibrocartilage


Explanation:

Hyaline cartilage is rigid, glassy in appearance, and provides cushioning for smooth joints. Fibrocartilage is fibrous and provides support in high-stress areas, such as the pubic symphysis. Elastic cartilage is flexible and makes up fleshy appendages, such as the nose and ears. 


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Example Question #9 : Connective Tissue Types And Properties


What is the means by which organisms maintain a constant internal environment in spite of fluctuations in the external environment?


Possible Answers:

Geriatrics


Reflexology


Homeopathy


Homeostasis


Physiology


Correct answer:

Homeostasis


Explanation:

Homeostasis, or "steady-state" physiology, is the system of feedback loops that enables an organism to create a stable, adaptive environment. For example, the pancreas and the brain together work to regulate the blood sugar levels via the hormones insulin and glucagon.


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Example Question #10 : Connective Tissue Types And Properties


What are the four types of tissue?


Possible Answers:

Cardiac, connective, sensory, epithelial


Muscular, connective, nervous, epithelial


Muscular, dermal, gastric, epithelial


Muscular, cardiac, nervous, sensory


Sensory, connective, nervous, dermal


Correct answer:

Muscular, connective, nervous, epithelial


Explanation:

The four types of tissue are muscular, connective, nervous, and epithelial.

Muscular tissue encompasses skeletal, cardiac, and smooth muscle. Nervous tissue creates the central and peripheral nervous systems (CNS, PNS) and consists of all neurons and glial cells. Epithelial tissue makes up "borders" and lines most organs. Connective tissue generally fills spaces and provides the suspensory matrices for the body, such as bone, fat, blood, and cartilage.

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