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Life Science 13B&C
Flashcards to review for teh Ch. 13B&C Quiz
| Question | Answer |
|---|---|
| the body system that includes skin, hair, and nails | integumentary system |
| lower layer of skin, consists of connective tissue | Dermis |
| a small tubular cavity containing the root of a hair | hair follicle |
| An opening through which sweat reaches the surface of the skin. | pore |
| the brown pigment that determines human skin color | Melanin |
| the body system formed by bones | skeletal system |
| Bones are covered with a tough white tissue | Periosteum |
| The ends and the center of many bones are made of many spaces | spongy bone |
| Mature bones are made mostly of this hard tissue | compact bone |
| The marrow cavity and the spaces in the spongy bone are filled red and yellow types of this | bone marrow |
| a type of connective tissue that is softer and more flexible than bone | Cartilage |
| the area just below the head of a long bone in which growth in bone length occurs | growth plate |
| A place in the body where two bones come together | joint |
| Connects bone to bone | Ligament |
| the outer layer of the skin | epidermis |
| the second layer of skin | dermis |
| the brown pigment that determines human skin color | melanin |
| the tough, white tissue that covers bones | periosteum |
| a type of connective tissue that is softer and more flexible than bone | cartilage |
| a tough, flexible band of connective tissue that holds bones together at a joint | ligament |
| the microscopic unit of compact bone | osteon |
| where two bones are fused together | immovable joint |
| four functions of skeletal system | support and movement, protection, mineral storage, blood cell production |
| when bones act like a rigid bar turning on a fulcrum act as a __________. | lever |
| the predominant type of lever in the body | 3rd class lever |
| type of lever with the fulcrum in the middle | 1st class lever |
| type of lever with the load in the middle | 2nd class lever |
| what is contained in the central cavity of a bone | marrow |
| what is formed from additional cells/layers as a result of friction to protect the deeper layers of the skin? | callus |
| type of gland for cooling and excretion of wastes | sweat |
| the layer below the skin which is not really part of the skin | subcutaneous layer |
| the type of tissue the epidermis is made of | epithelial tissue |
| type of gland next to each hair follicle | oil gland |
| functions of the subcutaneous layer | support, cushioning, insulation |