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Monica Ross
Human physiology with lab weeks 1-6
| Question | Answer |
|---|---|
| Feedback control loops | Information or "feedback" may be transmitted in these control loops by nervous impulses or by specific chemical messengers called hormones, which are secreted into the blood. |
| What is ATP? | Important molecule composed of adenine and ribose sugar to which are attached a string of three phosphate groups. |
| Osmosis | The movement of water through a semipermeable membrane |
| Diffusion | Natural phenomenon caused by the tendency of small particles to spread out evenly within any given space. |
| Simple diffusion | The process when molecules pass directly through the phospholipid membrane |
| What are the four principal types of tissue? | Epithelial, connective, muscle, and nervous tissue |
| True or False Within the first 2 weeks after conception, cells of the offspring move and regroup in an orderly way into three primary germ layers called endoderm, mesoderm, and ectoderm. | True |
| What are ligaments? | Fibrous bands that help hold the various bones together into an organized skelton. |
| What are the five major roles of bones in the body? | Support, protection, movement, mineral storage, and hematopoiesis |
| What are the different types of bones? | Compact, long, short, flat, irregular, and sesamoid bones |
| Diaphysis | Main shaftlike portion of long bones |
| Epiphyses | The proximal and distal ends of a long bone. (looks like a sponge due to small spaces in the bone. |
| Articular cartilage | Thin layer of hyaline cartilage that covers the articular or joint surfaces of epiphyses. This resiliency of this material cushions jolts and blows |
| Periosteum | Dense white fibrous membrane that covers bone except at joint surfaces, where articular cartilage forms the covering. |
| Medullary cavity | A tubelike hollow space in the diaphysis of a long bone, also called a marrow cavity. (In adults this cavity is filled with connective tissue rich in fat-a substance called yellow marrow) |
| Endosteum | A thin fibrous membrane that lines the medullary cavity of long bones. Endosteum also lines the spaces of spongy bones. |
| What are the 3 types of cartilage? | Hyaline, elastic, and fibrocartilage |
| True or False When the skeleton begins to form before birth, it consists not of bones but of cartilage and fibrous structures shaped like bones. | True |
| What are the two major divisions of the skull? | Cranium (brain case) and the face |
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Monica0278
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