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APSM Biology Quiz 3
APSM CA Biology Quiz 3 - 2.1-2.3
| Term | Definition |
|---|---|
| acetylcholine | neurotransmitter transmitting signals between cells and muscles |
| actin | protein molecules that make up the thin filaments in the muscles |
| atrophy | muscle degeneration |
| cardiac muscle | self-stimulating striated muscle found in the heart |
| contract (verb) | The active shortening of a muscle |
| diaphragm | thick sheet of muscle that separates thoracic cavity from the abdominal cavity, responsible for breathing |
| ligament | tissue that joins bones to other bones |
| muscle | soft, contractile tissue found in animals in order to produce motion; about a third of a person’s weight |
| muscular system | body system that functions together with the skeletal & nervous system to make movement possible |
| neuromuscular junction | Place where a nerve meets a muscle cell |
| sarcomere | overlapping protein fibers that give skeletal muscle its straited appearance |
| skeletal muscle | muscle whose primary function is to move parts of skeleton |
| smooth muscle | involuntary muscles lining tubes like blood vessels |
| tendon | cable of fibers that attach muscle to bone |
| voluntary muscle | Muscles that you can control directly |
| acne | Bacterial infection of the skin |
| cancer | condition that results from runaway growth of the body’s own cells |
| dermis | layer of skin below the epidermis |
| epidermis | Outermost layer of skin |
| hair follicles | vertical tube in the dermis designed to manufacture hair |
| hives | rash caused by allergic reaction |
| integumentary system | body system that provides communication with and protection from surroundings |
| keratin | tough waterproof protein that strengthens and hardens skin cells |
| melanocyte | inner layer of epidermis that produces melanin |
| nails | growth made of keratin to protect tips of fingers and toes |
| sebaceous glands | Glands of the skin that produce an oily substance that keeps the skin waterproof |
| skin | Largest organ in the human body |
| sweat glands | helps regulate body temperature by producing sweat |
| appendicular skeleton | division of the skeletal system that includes shoulders, hips, & appendage |
| axial skeleton | division of the skeletal system that includes head, spine, and rib cage |
| cartilage | tough rubbery connective tissue that cushions joints between bones |
| compact bone | most dense form of bone, makes the outer layer of bone |
| femur | thigh bone, largest bone of body |
| growth plates | areas of new bone growth made of cartilages; hardens into solid bone |
| Haversian canals | hollow center of bones where nerves and blood vessels are found |
| lacunae | black dots in compact bone that contain osteoblasts and osteoclasts |
| marrow | Living tissue inside long bones that makes blood cells |
| ossification | process by which cartilage is replace with bone |
| osteoblast | Cells that make bone |
| osteoclast | A bone cell that breaks down calcium mineral in bone |
| skeletal system | body system that provides support and rigidity; framework for body |
| spongy bone | lightweight porous tissues that gives bone lots of strength without lots of mass or weight |
| synthesis | making something |
Created by:
samundoacademy
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