Tissues
1) Depending on their structure and function, the muscles may be striated, smooth or cardiac muscles.
Striated | Smooth | Cardiac | |
Shape of cells | Long, cylindrical, unbranched | Spindle-shaped | Cylindrical, branched |
Striations | Present | Absent | Present |
Control | Voluntary | Involuntary | Involuntary |
Number and position of nuclei | Multinucleate and peripheral | Uninucleate and central | Uninucleate and central |
2) Nervous tissue is present in the brain, spinal cord and nerves.
3) Neuron is made up of cell body, dendrites and axon.
4) Neurons are specialized to receive and conduct impulses rapidly.
Top definitions
1) Tissues - A group of specialized cells with similar structure, working together to perform a common function.
2) Mersitematic tissue – Tissue made up of actively dividing cells, present in the growing areas of the plant body.
3) Apical mersitem – Meristem present at the growing tips of stem and root that causes the stem and root to increase in length.
4) Lateral meristem – Meristem located on the lateral portion of the plant and responsible for increasing the girth of its stem and root.
differentiated tissues, in locations such as the base of leaves or internode.
More >>>
Tags:
NCERT 9 Science