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15 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Name the levels in the multilevel organization in the human body |
1. cells 2. tissues 3. organs 4. organ systems 5. organism |
5 levels |
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Definition of cells |
1. basic unit of structure and function of living things 2. may service specific function within the organism i.e. red blood cell, white blood cell, nerve cell etc. |
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definition of tissues |
1. composed of cells that are similar structure and functions 2. cells work together to perform a basic activity |
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definition of organs |
1. made up of tissues that work together to perform a specific function i.e. heart, brain, skin |
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1. definition of organ system 2. how many organ systems in human body? |
1. groups of two or more tissues working togther to perform specific functions 2. humans have 11 organ systems |
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name the organ systems in the human body |
1. circulatory 2. digestive 3. endrocrine 4. excretory (urinary) 5. immune (lymphatic) 6. integumentary 7. muscular 8. nervous 9. reproductive 10. repiratory 11. skeletal |
there are 11 total |
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definition of organism |
1. entire living entity that can carry out basic life processes (take in material, release energy from food, release waste, grow, respond to environment, reproduce) 2. can be made up of multi organ systems or single cell (bacteria/protest) |
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cytology and biochemistry of physiological fluids 1. name the types of fluids/percentage of each |
1. intracellular fluid - 40% of total body water, water forms 75-80% 2. extracellular fluid - 20% of total body water, determines the pH and osmotic pressure of the inner environemtn; made up of intestitial fluid and plasma 3. plasma - makes up 1/4 of extracellular fluid; major proteins are albumin and globulins 4. interstitial fluid - microfiltrate of plasma; "true" body environment |
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definition of reproductive biology |
process by which organisms replicate; can be sexual or asexual |
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types of cellular reproduction |
1. somatic (body cells) 2. sex (sperm/ova) |
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mitosis |
1. somatic cell reproduction 2. single cell divides into two complete new cells (diploid) that are identical to the original |
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phases of mitosis |
1. prophase 2. anaphase 3. metaphase 4. telephase |
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meiosis |
1. sex cell reproduction 2. two sequential division processes create gametes (haploid) that are not identical to the parent cell 3. male and female gametes combine to create a zygote (diploid) with complete genetic information |
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Formation of spermatozoa (spermatogenesis), takes place in___ |
Takes place in the seminiferous tubules 1.spermatogonia (46 chromosomes) 2. 1st meiotic division: primary spermatocyte (46) 3. 2nd meiotic division: secondary spermatocyte (2 cells, 23 chromsomes each) 4. division of spermatocyte into 4 spermatids (23 chromosomes) 5. differentiation of spermatids into sperms cells (23 chromosomes each) |
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formation of ovum cells and polar bodies (oogensis) |
1. primary oocyte divides into a secondary occyte and first polar body 2. secondary oocyte divides into a mature ovum and polar body 3. first polar body divides into 2 polar bodies 4. resuls: 1 mature ovum and 3 polar bodies |
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