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Sarah Dulcey

Anatomy chapters 1-5

QuestionAnswer
List the seven organizationsl levels in the body 1) Chemica 2) Organelle 3) Cellular 4) Tissue 5) Organs 6) System 7) Organism
List and define the two main body cavities and cavities within them. 1) Dorsal cavities: a) Cranial cavity. b) Spinal cavity 2) Ventral cavities: a) Thoracic cavity: Contains the mediastimum (heart). Contains the peural cavities (lungs)
Define Homeostasis The relatively constant states maintained by the body.
Define setpoint/setpoint range A normal reading or range that is normal for the body.
What part of the brain controls body temperature AKA the thermostat The hypothalmus.
List four major elements in the body. 1) Carbon 2) Oxygen 3) Hydrogen 4) Nitrogen These make u[ 96& of the material in the human body.
List the three main bonds in the body. 1) Ionic 2) Covalent 3) Hydrogen
Define acid and base electrolytes and list some characteristics. 1) Acids: Taste sour, PH below 7, give off H+ 2) Bases: Taste bitter, PH above 7, alkaline, dissociate in a solution, Decrease H+ Break up/dissociate in water to form charged particles called ions that have a positive or negative charge.
Define electrolytes buffers and salts. Buffers They minimize changes in the concentration of H+ and OH- ions in the body. Salts: results from acid and base interaction. Break up/dissociate in water to form charged particles called ions that have a positive or negative charge.
What is the average PH of venous and arterial blood. Venous: 7.36 Arterial: 7.41
List and define the four major groups of organic substances in the body. 1) Carbohydrates: Contain C,, H, O normally in 1:2:1 ratio. A) Monosaccharides (simple sugar), Disaccharides (double sugars), Poly saccharides (complex sugar) 2) Lipids: Hydorphobic, H, C, O (less O) 3) Proteins 4) Nucleic acids and related molecules:
What makes up the majority of the external cell wall. Phospholipid bilayer.
Created by: sdulcey
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