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Human Physiology #2
Second set
Question | Answer |
---|---|
from smallest to largest, the levels of organization of the body are | chemical, organelle, cellular, tissue, organ, system, organism |
The opening of the urethra at the tip of the glans is called the: | external urinary meatus. |
Cells reproduce by splitting themselves into two smaller daughter cells | True |
Tissues have a varying capacity to repair themselves; damaged tissue regenerates or is replaced by scar tissue | true |
Tissue | group of similar cells that perform a common function |
Functions of Epithelial Tissue | 1. Protection 2. Sensory functions 3. Secretion 4. Absorption 5. Excretion |
Types of Fibrous Connective tissue | Loose fibrous (areolar) (2) Adipose (3) Reticular (4) Dense |
Layers of Skin | Two primary layers—epidermis and dermis |
Types of Protection of the skin | a. Physical barrier and immune barrier to microorganisms b. Barrier to chemical hazards c. Reduces potential for mechanical trauma d. Prevents dehydration e. Protects against excess UV exposure |
Vertebral Column | Cervical vertebrae, 7 2. Thoracic vertebrae, 12 3. Lumbar vertebrae, 5 4. Sacrum—in adults, results from the fusion of five separate vertebrae 5. Coccyx—in adults, results from the fusion of three to five separate vertebrae |
Types of Bones | a. Long bones—cylindrical b. Short bones—boxlike c. Flat bones—broad, sheetlike d. Irregular bones—various shapes e. Sesamoid bones—seedlike |
Function of Epiphyses | to provide attachments for muscles and give stability to joints |
Dense, white fibrous membrane that covers bone | Periosteum |
Contains many cylinder-shaped structural units called osteons, or haver-sian systems | Compact bone |
Anabolism | builds large molecules from smaller ones; usually consumes energy |
Catabolism | breaks large molecules into smaller ones; usually releases energy |