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Body Review Sheet
Test on 5/12/2015
| Question | Answer |
|---|---|
| Define homoeostasis | The maintenance of a stable internal environment |
| Define tissue | A group of similar cells working together |
| Epithelial tissue (four characteristics) | 1) Covers 2) Protects 3) Underlying tissue 4) Sticks together to form a sheet |
| Muscular tissue | Made of cells that can contract and relax. |
| Connective tissue | Joins, supports, protects, insulates, nourishes, and cushions |
| Nervous organs | Sends electrical signals through the body and is found in the brain, nerves, and sense organs. |
| Define organ | Two or more tissues working together |
| Define organ system | Organs working together |
| What is the job of the ribs? | To protect your heart and lungs |
| What is the job of the cranium? | To protect the brain |
| What is the job of the vertebrae? | Protecting your spinal cord |
| How do the skeletal muscles produce movement? | By pulling on bones |
| Define osteoblasts | Cells that build bones |
| Three characteristics of compact bone: | 1) No visible open spaces 2) Provides the most strength/support 3) Contains blood/bone cells and blood vessels |
| Three characteristics of spongy bone: | 1) Many open spaces 2) Makes bones lighter 3) Found at the ends of long bones |
| Define marrow | Soft tissue in bones |
| What is a difference between red and yellow marrow? | Red marrow makes RBC's and yellow marrow stores fat |
| Define cartilage | Soft tissue that is then replaced by bones |
| Define joint: | The places where two or more bones join together |
| Define ligament | A strong elastic band of tissue that keeps two bones together and has poor blood flow. |
| Define muscle | An organ that can relax, contract and provide force to move body parts. |
| What is the difference between the three types of muscles? | They are found in different places and the cardiac muscle is self excititory. |
| What makes up the integumentary system? | Skin, nails, and hair |
| What are 4 purposes of the skin? | 1) Keep moisture 2) Keep other particles out 3) Contain nerve endings 4) Help regulate body temperature |
| How do blood vessels regulate body temperature? | Dilating = More thermal energy Constricting = Less thermal energy |
| What are two roles of sweat glands? | Cools skin and gets rid of wastes |
| 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. |
| Define epidermis | Outermost and filled with a protein called keratin which makes skin tough |
| Define dermis | Found beneath the epidermis and contains fibers called collegen |
| Define collogen | Provides strength and felixiblility for the skin |
| Define hair follicle | Contains cells that produce hair |
| What is the job of the nails? | Protect the nail-bed of the fingers and toes |
| Define bruises | Blood vessels under the skin under the skin are broken and pigment causes the bruise color |
| Define cuts | Cells form new skin under a scab |
| 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. |
Created by:
16esmith
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