Saturday, January 28, 2012
Tuesday, January 24, 2012
Skull
Skull:
Skull create 22 bone.
| Name | Quantity |
| Parietal bone | 2 |
| Temporal bone | 2 |
| Frontal bone | 1 |
| Occipital bone | 1 |
| Sphenoid bone | 1 |
| Ethmoid bone | 1 |
| Maxilla | 2 |
| Mandible | 1 |
| Zygomatic bone | 2 |
| Nasal bone | 2 |
| Lacrimal bone | 2 |
| Palatine bone | 2 |
| Inferior Nasal Concha | 2 |
| Vomer | 1 |
Classification of Bone
Classification of Bone:
There are 6 kinds of Morphologically bone
Long bone
Short bone
Flat bone
Irrigular bone
Pneumatic bone
Sesamoid boneSKIN
Skin:
Which is covred in human body. there are 16% skin based on human body total weight.
There are two layer in skin:
§ Epidermis
§ Dermis
Neurons
Neurons:
Neurons are the structural and functional units of the nervous tissue.
Nervous system create 100 million neurons in human body.
BONE
Bone:
Bone is a special type of highly vascular,mineralized and contantly changing rigid connective tissue which forms the framework of the body.
In human body there are 206 bone.
| Name | Quatity |
| Cranium | 8 |
| Face | 14 |
| Vertebra | 33 |
| Sternum | 1 |
| Ribs | 24 |
| Clavicle | 2 |
| Scapula | 2 |
| Humerus | 2 |
| Radius | 2 |
| Ulna | 2 |
| Carpal | 16 |
| Metacarpal | 10 |
| Phalanges | 28 |
| Hip bone | 2 |
| Femur | 2 |
| Tibia | 2 |
| Fibula | 2 |
| Patella | 2 |
| Tarsals | 14 |
| Metatarsals | 10 |
| phalanges | 28 |
Nervous tissue
Nervous tissue:
Nervous tissue is a specialized tissue for reception of stimuli which are then analysed and integrated to produce appropriate coordinated responses.
Tissue
Tissue:
A Collection of cell together with intercellular substances that are similar in structure and function is called a tissue.
There are four kinds of tissue:
Ø > Epithelial Tissue
Ø >Connective Tissue
Ø >Muscular Tissue
Ø >Nervous Tissue
Cell Division
Cell Division
Cell division is the process by which cells multiply themselves for growth and repair of tissues.
Two kinds of cell division
· Mitosis.
· Meiosis.
Mitosis:
Mitosis is the process of cell division by which the cytoplasm and the nucleus of the cell are divided equally in to two identical daughter cells.
Meiosis:
Meiosis is a special type of cell division that yields haploid daughter cells from a haploid parent cell .
Cell
CELL:
Cell is the structural and functional unit of the bodyof a mass of protoplasm containing a nucleus.
Main part of cell:
Cell is mainly two part
· Cytoplasm
· Nucleus.
| Cytoplasm | Nucleus |
| Mitochondria | Nuclear membrane |
| Ground Cytoplasm | Chromatin |
| Centrosome | Nucleolus |
| Golgi bodies | Nucleoplasm |
| Ribosomes | |
Saturday, January 21, 2012
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