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Body Organisation

molecules, cells, tissues, organ and organ systems, major regions, cavities

TermDefinition
6 Characteristics of life? Organisation, Metabolism, Responsiveness, Growth, Development (Cell differentiation, Morphogenesis), Reproduction
6 Structural Organisations in Body? Chemical (Atoms>molecules&compounds), Cells, Tissues(4), Organs, Organ Systems, Organisms (11 mutually dependent organ system) If one gets paralysed, all are.
3 Body Positions? Anatomic: Standing erect with palms forward. Supine: Lying face up Prone: Lying face down
4 Planes to section body? Median : through Midline Frontal: Body into anterior and posterior Transverse: Body into superior&inferior Oblique: into oblique systems
Sectioning an Organ? Longitudinal: along the length Cross/Transverse: right angle Oblique: any but a right angle
4 Main Body Cavities? Cranial: lined by meninges- brain. Thoracic: lined by pleura- heart, lungs, thumus Abdomino(Pelvic): lines by peritoneum- liver, stomach, pancreas, rectum. Seperated from thoracic by diaphragm. Vertebral Canal: lined by meninges- spinal cord.
4 Primary Tissues? Epithelial- protect Connective- connect Muscle- movement Nervous- communication
Functions of Epithelial tissue? Covering: protection from damage and dehydrations (skin) Secretion of body fluids: glandular epithelium Absorption or reabsorption of nutrients: intestinal.
Functions of Connective Tissue? Binding&Structural suppoer- bones, cartilage Protections: Bones Transport: blood Insulation: adipose tissue Immunity: lymphatic tissue
Classification of Connective Tissues? CT proper: Soft Hard CT: cartilage, bones. Specialised CT: Adipose ct: hypodermis, liquid CT: blood
Specialised Connective Tissue? Adipose/Fatty tissue- brown- has more blood capillaries&mitochondira for heat protection. White- thermal insulation&energy store. Liquid CT: blood- liquid CT links all body cells, Lymphoid- in lympatic tissue
Function of Muscle tissue? produce body movement, stabilize body positions, produce heat.
3 types of muscle tissues? Striated muscles : Skeletal- voluntary movement, all linked to skeleton Cardiac- involuntary, middle layer of heart, for heart beat. Smooth- internal organs, involuntary contraction of viscera.
Functions of Nervous Tissue? Sensory Reception via sensory neurones. Control of voluntary movement via motor neurones to skeletal muscles: brain and spine. Higher mental activities- memory, intelligence.
2 types of nervous tissue? Excitable tissue- consists of neurones- carry electrical impulses Non excitable tissues- consists of glial cells, support, nutrition of nerve cells.
Created by: shadeauyoung
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