Cells, Tissue, Organ and System Flashcards
(25 cards)
What is physiology ?
study about organs in human body
Chemical level
atom and molecule
Cellular level
Single cell > cell division > specialised functions
Tissue level
- various combination of cells
- aggregation of differentiated cells withsimilar properties
Categories of tissue types
- epithelial
- connective
- nerve
- muscle
Muscle tissue
generate mechanical forces that produce movement
Nerve tissue
initiate and conduct electrical signals
Epithelial tissue
for selective secretion and absorption
Connective tissue
provide support to structure in body
Organ level
composed by the four tissue (above)
Organ system
collection of organ that together perform functions
Integumentary system
- skin
- protect against physical, chemical, biological injury
- eliminates body waste
- detect sensations
Muscular and skeletal systems
provide support and produce movements for body
Muscular system
components : skeletal muscle tissue
functions : provide skeletal movement, protect soft tissue, produce heat
Skeletal system
components : bones and cartilages
functions : support and protect body, aids body movements
Neuroendocrine system
involved in integration and coordination of body systems
Nervous system
detects and interpret environmental changes and produce responses
Endocrine system
regulates body activities by releasing hormones
Circulatory system
transport blood throughout body
Respiratory system
exchange of CO2 and H2O
Lymphatic system
returns protein and ECF to blood, defense against disease-causing organisms
Digestive system
chemical breakdown of food, eliminates waste through defecation
Urinary system
regulation of plasma composition through controlled excretion of salts, water, organic waste
Reproductive system
produce and store gametes, associated organ transport
