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science test
science test wednesday 4/6/16; intugmentary system and skeletal system
| Question | Answer |
|---|---|
| skin protects you by keeping ______ in your body and foreign particles out of your body | water |
| nerves in your skin let you __________ things | feel |
| regulates your body __________ | temperature |
| skin helps you get rid of ___________. wastes are removed in _________ | waste; sweat |
| skin cells produce ________ which allows your body to absorb ____________ | melanin; ultraviolet light |
| skin comes in many different colors. skin color is determined by a chemical called ________. the more melanin in the skin, the _______ the skin color. | melanin; darker |
| what is the outermost layer of your skin? | epidermis |
| what is the thicker layer of skin that lies beneath the epidermis? | the dermis |
| a hair forms at the bottom of a tiny sac called a hair _________. hair helps protect the skin from __________ rays and helps regulate body ______________ in most mammals. | follicle; ultraviolet; temperature |
| a nail grows from living cells in the nail ________ at the base of the nail. nails _________ the tips of your fingers and toes. | root; protect |
| skin is often damaged, but fortunately can repair itself. however, damage to the ______ material in skin cells can cause skin _______. | genetic; cancer |
| beneath the surface, your skin is a complex organ made of _________ _______, _________, ___________, and __________. (hint: bv,n,g,m) | blood vessels; nerves; glands; muscles |
| _______ ______ transport substances and help regulate body temperature. | blood vessels |
| ________ _______ carry messages to and from the brain. | nerve fibers |
| ________ __________ in the dermis make hair. | hair follicle(s) |
| ______ _____ attached to a hair follicle can contract and cause the hair to stand up. | muscle fibers |
| __ ________ release oil that keeps hair flexible and waterproofs the epidermis. | oil glands |
| ________ ________ release sweat to cool the body. sweating is also a way to remove waste materials from the body. | sweat glands |
| what is the maintenance of a stable internal environment? | homeostasis |
| what are two or more tissues working together? | organs |
| what is the soft, flexible tissues that changes to bone? | cartilage |
| what tissue covers and protects other tissues? | epithelial tissue |
| what do we call a group of cells working together? | tissue(s) |
| what tissue contracts and relaxes to produce movement? | muscular tissue |
| what tissue sends electrical signals through the body? | nervous tissue |
| what tissue joins, supports, protects, insulates, nourishes, and cushions organs? | connective tissue |
| true or false? a baby's skeleton is made mostly of marrow | false; it is made mostly of cartilage |
| true or false? the tissue that attaches bones to muscles are called tendons | true |
| true or false? the soft material that produces the baby's blood cells is cartilage. | false; red marrow produces blood cells |
| true or false? the structure where bones come together are called joints | true |
| true or false? the tissue that connects bone to bones is called tendons | false; ligaments connect bone to bone |
| cardiac muscle is found only in the heart | true |
| when smooth muscle moves blood through your blood vessels, the action is voluntary | false; the action is involuntary, you don't control that |
| skeletal muscles help protect your inner organs | true |
| there are three types of muscle: cardiac, voluntary, and skeletal. | false; voluntary is not a type of muscle. instead there should be cardiac, SMOOTH, and skeletal |
| what connects bone to bone? | ligaments |
| what kind of muscle makes up organs such as those found in the digestive tract? | smooth muscle |
| what muscles contract to move bones? | skeletal muscles |
| what system is made up of bones, cartilage and connective tissue? | skeletal system |
| what kind of bone has many open spaces and contains marrow? | spongy bone |
| what kind of muscle is found only in the heart? | cardiac muscle |
| what attaches skeletal muscle to bone? | tendons |
| what kind of bone tissue does not have open spaces? | compact bone |
| what system is made up of muscles and the connective tissue that attaches them to bones? | connective system |
| how many bones are in your body? | 206 |
| what is the largest bone in your body? | femur |
| where are blood cells made? | bone (red) marrow |
| where are the smallest bones in your body located? | your ear (they are the anvil, hammer, and stirrup) |
| what bones protect your spinal cord? | vertebrae |
| what kind of joint allows you to flex and extend your lower leg? | hinge joint |
| what is responsible for the color of your skin? | a pigment called melanin |
| what is the lower skin layer called that contains mainly collagen and connective tissue? | the dermis |
| organs in the dermis that produce hair are... | hair follicles |
| what is the outermost layer of your skin that is made up of the epithelial tissue? | epidermis |
| what small organs in the dermis produce a salty waste? | sweat gland |
| what three things make up the integumentary system? | skin, hair nails |
| how many layers of skin do you have? | 2 |
| which of these are made of dead cells: epidermis, nails, hair? | hair, nails, epidermis (ALL) |
| what does homeostasis maintain in the body? | a stable internal enviornment |
| what is a tissue? | a group of similar cells that work together |
| a collection of two or more tissues that work together to perform a function is called... | an organ |
| the type of tissue that supports and protects organs is | connective tissue |
| what system absorbs oxygen from the air and releases carbon dioxide... | respiratory system |
| what sends out chemical messages? | endocrine system |
| what breaks down food into nutrients? | digestive system |
| what system supports and protects body parts? | skeletal system |
| what system sends and receives electrical messages? | nervous system |
| what system helps your body get rid of bacteria and viruses? | lymphatic system |
| what is the tissue that cushions the ends of bones where they meet in a joint? | cartilage |
| what your bones store to help your nerves and muscles work properly? | minerals |
| what is a place where two or more bones meet? | joint |
| what is the material that fills some of your bones and makes blood cells? | marrow |
| type of joint that allows the bones in your hand and wrist to move? | gliding joint |
| type of joint that allows you to move your arm in all directions? | ball and socket joints |
| type of joint that allows you to flex and extend your leg? | hinge joint |
| an injury in which a ligament is stretched to far or torn? | sprain |
| disease that causes bones to become weak and break more easily? | osteoporosis |
| disease that causes joints to stiffen or swell | arthritis |
| what is the soft tissue that changes to bone? | cartilage |
| where in your bones are red blood cells made? | red marrow |
| what tissue connects bone to bone? | ligaments |
| name the five functions of the skeletal system? | support, protect, movement, make blood cells, storage |
| what type of tissue joins, supports, and protects? | connective tissue |
| what sends electrical signals? | nervous tissue |
| what is on the surface of your skin? | epithelial tissue |
| what tissue produces movement? | muscular tissue |
| give an example of a ball and socket joint | your shoulder and arm |
| give an example of a gliding joint | movement in your wrist |
| give an example of a hinge joint | your knee and leg. |
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