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Monica Ross

Human physiology with lab weeks 1-6

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
Created by: Monica0278



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