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ThaliaSantos

Physiology Weeks 1-6

QuestionAnswer
What is Homeostasis ? Homeostasis means keeping the body’s internal environment stable, even when the external environment changes.
Why is Homeostasis important? It keeps conditions like temperature, pH, and fluid balance just right so that cells can function properly
What is a positive feedback loop? it strengthens a change instead of reversing it, like contractions during childbirth.
What is a negative feedback loop? It’s when the body reverses a change to bring conditions back to normal, like sweating to cool down.
What are the main biomolecules? Carbohydrates, lipids, proteins, and nucleic acids.
What are lipids used for? They store energy, protect organs, and make up cell membranes.
What are nucleic acids? DNA and RNA - they store and carry genetic information.
What are the main parts of a cell? The cell membrane, cytoplasm, and nucleus are the three main parts.
Why is mitosis important? It helps with growth, repair, and replacing old cells.
What are the four types of tissue? Epithelial, connective, muscle and nervous tissue.
What are the main layers of the skin? Epidermis, dermis, hypodermis.
What are the different bone types? Long, short, flat, irregular , and sesamoid bones.
What is the axial skeleton? Skull, spine and rib cage. ( The body’s main axis)
What are the three types of muscle tissue? Skeletal, smooth, and cardiac.
What are the three main types of joints? Fibrous(No movement), cartilaginous (slight movement), and synovial(freely moveable).
Created by: Thalia56
 

 



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