Test on 5/12/2015
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Define homoeostasis | The maintenance of a stable internal environment
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| Define tissue | A group of similar cells working together
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| Epithelial tissue (four characteristics) | 1) Covers 2) Protects 3) Underlying tissue 4) Sticks together to form a sheet
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| Muscular tissue | Made of cells that can contract and relax.
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| Connective tissue | Joins, supports, protects, insulates, nourishes, and cushions
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| Nervous organs | Sends electrical signals through the body and is found in the brain, nerves, and sense organs.
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| Define organ | Two or more tissues working together
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| Define organ system | Organs working together
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| What is the job of the ribs? | To protect your heart and lungs
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| What is the job of the cranium? | To protect the brain
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| What is the job of the vertebrae? | Protecting your spinal cord
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| How do the skeletal muscles produce movement? | By pulling on bones
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| Define osteoblasts | Cells that build bones
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| Three characteristics of compact bone: | 1) No visible open spaces 2) Provides the most strength/support 3) Contains blood/bone cells and blood vessels
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| Three characteristics of spongy bone: | 1) Many open spaces 2) Makes bones lighter 3) Found at the ends of long bones
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| Define marrow | Soft tissue in bones
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| What is a difference between red and yellow marrow? | Red marrow makes RBC's and yellow marrow stores fat
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| Define cartilage | Soft tissue that is then replaced by bones
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| Define joint: | The places where two or more bones join together
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| Define ligament | A strong elastic band of tissue that keeps two bones together and has poor blood flow.
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| Define muscle | An organ that can relax, contract and provide force to move body parts.
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| What is the difference between the three types of muscles? | They are found in different places and the cardiac muscle is self excititory.
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| What makes up the integumentary system? | Skin, nails, and hair
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| What are 4 purposes of the skin? | 1) Keep moisture 2) Keep other particles out 3) Contain nerve endings 4) Help regulate body temperature
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| How do blood vessels regulate body temperature? | Dilating = More thermal energy Constricting = Less thermal energy
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| What are two roles of sweat glands? | Cools skin and gets rid of wastes
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| Define melanin | A darkening chemical in the skin that determines skin color. (The more the darker the skin) It is in the upper layer of the skin and absorbs more harmful radiation.
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| Define epidermis | Outermost and filled with a protein called keratin which makes skin tough
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| Define dermis | Found beneath the epidermis and contains fibers called collegen
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| Define collogen | Provides strength and felixiblility for the skin
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| Define hair follicle | Contains cells that produce hair
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| What is the job of the nails? | Protect the nail-bed of the fingers and toes
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| Define bruises | Blood vessels under the skin under the skin are broken and pigment causes the bruise color
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| Define cuts | Cells form new skin under a scab
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| What is a skin graft? | A piece of skin from one part of the or from a donor (dead person) and is placed in a damaged area.
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