Tag: structure of living organisms
Questions Related to structure of living organisms
Which of the following organs contain(s) smooth muscles?
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Blood vessels
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Iris of the eye
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Bronchi
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All of the above
Smooth muscles are spindle-shaped and are under involuntary control. They are seen in the internal organs such as the blood vessels, iris and the lung bronchi. In the blood vessels, they enable the blood flow. In iris, they increase the pupil size in the presence of bright light. They help in lung contraction and relaxation due to their presence in bronchioles. Thus the correct answer is option D.
Which of the following tissues is made up of long contractile cells packed with actin and myosin microfilaments?
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Epithelial tissue
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Adipose tissue
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Fibrous connective tissue
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Nervous tissue
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Muscle tissue
Muscles contract via the action of proteins actin and myosin. Both these proteins are present as microfilaments. Actin forms the thin filaments of muscle cells and myosin forms the thick filaments.
Myology is the study of
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Muscles
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Bones
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Cartilages
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None of the above
"Myo" refers to "Muscles". Myology is the study of the muscular system, including the study of the structure, function, and diseases of muscle.
Heart muscles are ____________.
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Visceral
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Smooth
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Skeleton
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Cardiac
Striated and voluntary muscles occur in ____________.
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Trachea
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Lungs
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Gall bladder
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Limbs
Mast cells occur in ______________.
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Areolar tissue
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Adipose tissue
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White fibrous tissue
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Yellow fibrous tissue
Which of the following cells are found in areolar tissue?
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Mast cells
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Plasma cells
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Histiocytes
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All of these
Areolar Tissue is a common form of loose connective tissue. Areolar tissue is found in many locations around the body.
Different types of cells are given below.
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Fibrobiasts, Hepatocytes, Mast cells, Osteocytes
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WBC's, Basophils, fibrobiasts, Mast cells, Plasma cells
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Fibrobiasts, WBC's , Plasma cells, Mast cells
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Fibrobiasts, WBC's, Chondrobiasts, Mast cells
- Areolar tissues are widely distributed connective tissue in the animal body. It is named because so because it takes the form of fine threads crossing each other in every direction leaving small spaces called areolae.
- The areolar tissue consists of ground substance, the matrix, white yellow and reticular fibers and cells like fibroblasts, hepatocytes, mast cells and osteocytes.
Tonsils in the pharynx are made up of
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connective tissue
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muscular tissue
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lymphatic tissue
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neuro-muscular tissue
Which type of tissue forms glands
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Epithelial
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Connective
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Nervous
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Uterus
Epithelial tissues form the covering of all body surfaces, lines body cavities and hollow organs, and are the major tissue in glands.