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22 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are the 7 characteristics of living things? |
1) they are organized 2) take materials and energy from environment 3) reproduce 4) grow and develop 5) are homeostatic (internal conditions have narrow range of variation) 6) respond to external and internal stimuli 7) can adapt to changing environment (have an evolutionary history) |
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What can negative feedback loops do? |
• Change the direction of the stimulus • Can increase or decrease the stimulus • Can regulate temperature and blood pH |
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What are the 5 steps to homeostatic control? |
1) Stimulus: produces a change 2) Receptor: detects the change 3) Input: information travels to control centre 4) Output: information travels from control centre to effector 5) Response: effector balances original stimulus |
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When would you see a positive feedback loop? Why? |
Childbirth is an example of a positive feedback loop. As well as bleeding from a wound. During a positive feedback loop the stimulus produces a change that creates more and more stimulus in the same direction. This causes the change to continue increasing. This is important as it makes it so babies can be born and blood to clot and form a scab. |
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Which cavities are found within the ventral cavity? |
Thoracic cavity Abdominopelvic cavity |
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Which organs are found in the thoracic cavity? |
Lungs Heart |
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Which organs can be found in the abdominopelvic cavity? |
Abdominal: Stomach, liver, spleen, gallbladder, most of the small & large intestines Pelvic: Bladder, rectum, reproductive organs |
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What does the dorsal cavity contain? |
Brain (cranial cavity) Vertebral canal (spinal cavity) |
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What are the 4 types of membranes? |
1) Mucous 2) Serous 3) Synovial 4) Meninges |
Insane in the membrane |
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What does the mucous membrane do? |
• Lines tubes (digestive, respiratory, urinary & reproductive) • Protects body from bacteria invasion by secreting mucous to trap the enemies for expulsion • Protects wall of stomach and small intestine from acid • Prevents tissue dehydration |
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What does the serous membrane do? |
• Lines and supports lungs, heart, abdominal cavity and organs • Secretes Serous Fluid to keep organs lubricated |
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Where does the Serous membrane secrete fluid to? |
1) Pleura: lines thoracic cavity and covers lungs 2) Pericardium: covers heart 3) Peritoneum: lines abdominal cavity and forms mesentery |
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What does the synovial membrane do? |
• Lines cavities of joints • Secretes synovial fluid • Transports nutrients to joints and carries away waste |
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What does synovial fluid do? |
Synovial fluid lubricates the ends of bones in joints so they move freely, reduces friction. |
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What does synovial fluid do? |
Lubricates joints so that they move freely without friction |
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What does synovial fluid do? |
Lubricates joints so that they move freely without friction |
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What does the meninges membrane do? |
• Protects covering for brain and spinal cord • Works with cerebrospinal fluid to keep these organs moist and protected - provides cushioning |
INSANE IN THE BRAIN |
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What are the 4 types of tissue in humans? |
1) Epithelial 2) Connective 3) Muscular 4) Nervous |
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What does the epithelial tissue do? |
Covers body surfaces and lines cavities |
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What does connective tissue do? |
Supports and binds body parts |
Spider web |
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What does muscular tissue do? |
Moves the body and it's parts |
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What does nervous tissue do? |
Receives stimuli, processes that info and conducts impulses |
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