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PHYSIOLOGY

CH 1-6

QuestionAnswer
What is a set point? Normal reading or range in the body that allows the body to stay in homeastasis through regulatory mechanisms.
What are the four basic components of the feedback loop? 1. Sensor mechanism 2. Integrator or control center 3. Effector mechanism 4. Feedback
What are amino acids held together by? Peptide bonds
What determines a proteins function? ITS SHAPE!
Diffusion Move from an area of high concerntration to an area of low concentration
Major events of mitosis Prophase - "pinching in half" Metaphase - "In the middle phase" Anaphase - "apart phase" Telophase - "end phase"
Describe meiosis Only occurs in primitive sex cells meiosis I - Diploid to haploid meiosis II - 4 Haploid cells
Name the bone cells Osteoblast - secrete cellular matrix called osteoid Osteoclast - Responsible for erosion of bone minerals Osteocytes - Mature cells, responsible for making bone
Name three types of cartilage. Where is it found? Hyaline cartilage - most common, ends of the ribs to sternum Elastic cartilage - external ear Fibrocartilage - pubic symphysis
What is the sliding-filament model During contraction myosin crosses actin ,with mechanical energy, causing the muscle to shorten
Three functions of muscle heat production posture movement
Steps of an action potential Stimulus opens Na channels. Membrane depolarizes Threshold potential is reached. Na voltage channels open Magnetude of action potential peaks. Na voltage gate cloeses Repolarzation. K voltage gates open releasing K Breif hyperpolarization. Na channe
Cell layers of the epidermis Stratum basale Stratum spinosum Stratum granulosum Straum lucidum Stratum corneum
Created by: STARQ
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