Each muscle is composed of many long, cylindrical fibres arranged in parallel arrays. These fibres are composed of numerous fine fibrils, called:
(1) Microfilament
(2) Myofibrils
(3) Microtubule
(4) Sarcoplasm
Nervous tissue is made up of neurons and neuroglial cells. Point out which of the following statement about these two cells is false:
I. Neuroglia make up more than one-half the volume of neural tissue in our body
II. Neuroglia protect and support neurons
III. When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its cytosol
IV. This disturbance at the neuron endings triggers stimulation or inhibition of adjacent neurons or other cells
(1) Only I and IV
(2) Only II and III
(3) Only III
(4) Only IV
The supportive skeletal structures in the human external ears and in the nose tip are example of:
(1) Ligament
(2) Areolar tissue
(3) Bone
(4) Cartilage
Which of the following statement correctly defines a tissue?
(1) A group of cells having different anatomy can perform a specific function.
(2) An aggregate of similar cells forming a definite kind of structure performing a specific function.
(3) Single cell which has ability to perform specific functions in association with other cells.
(4) Two or more organs having similar cells perform similar functions in association with each other.
What is the association of two or more organs interacting physically or chemically to perform a particular function called as :
(1) Tissue-organ system
(2) Organ system
(3) Cellular-tissue system
(4) Animal tissue
According to which of the following properties, the structure of a particular cell varies inside a tissue :
(1) Origin of the cell
(2) Nucleus of the cell
(3) Function of the cell
(4) Due to the function of surrounding cells
Which of the following statement is incorrect regarding the tissue lining organs and cavities?
(1) They play a role of separating two structures from each other.
(2) Cells are compactly packed with large intercellular space or matrix.
(3) On the basis of number of cell layers present, they are classified as simple and stratified.
(4) They are closely bound to each other through specialised structures called as tight junctions.
The epithelium composed of single layer of tall and slender cells is found in :
(1) Stomach wall
(2) Fallopian tubes
(3) Nephrons
(4) Stomach and intestinal lining
Strength, elasticity and flexibility to tissues is provided by the fibres of :
(1) Elastin
(2) Adipose tissue
(3) Elastin and collagen
(4) Areolar tissue
Modified polysaccharides in between cells which act as matrix are secreted by :
(1) Blood cells
(2) Elastin
(3) Mast cells of areolar tissue
(4) All connective tissues except blood