Chapter 1 reverse Flashcards
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Study of structure and shape of body and parts
Anatomy
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Study of how the body and its parts work and function
Physiology
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Large structures easily observable
Gross Anatomy
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very small structures can only be viewed with a microscope
Microscopic Anatomy
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Chemical Cellular Tissue Organ Organ Systems organism
Structural Organization
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Integumentary Skin Skeletal Muscular Nervous Endochrine Cardiocvascular Lymphatic Respiratory Digestive Urinary Reproductive
Organ System
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forms the external body covering protects deeper tissue from injury helps regulate body temperature loacation of cutaneous receptors sweat and oil glands
Integumentary Skin
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protects and supports body organisms provides muscle attachment for movement site of blood cell formation stores minerals
Skeletal system
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produces movement maintains posture produces heat
Muscular System
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fast acting system responds to internal and external change activates muscles and glands
Nervous System
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slow acting systems secretes regulatory hormones growth reproduction metablolism
Endocrine System
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transports materials in body via blood pumped by heart oxygen, carbon, dioxide, nutrients, wastes
Cardiovascular System
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returns fluids to blood vessels cleanses the blood involved in immunity
Lymphatic system
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keeps blood supplied with oxygen removes carbon dioxide
Respiratory system
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breaks down food allows for nutrient absorption into blood eliminates indigestible material
Digestive System
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eliminates nitrogenous wastes maintains acid base balance regulates water and electrolytes
Urinary System
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produces offspring testes produce sperm Ovaries produce eggs
Reproductive System
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Maintain boundaries Movement Responsiveness Digestion metabolism Excretion Reproduction Growth
Functions for Life
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Internal environment is different from external integumentary system keeps fluid in bacteria out protects agains sun heat and chemicals
Maintain Boundaries
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locomotion walking swimming facial expression movement of substances food and waste through alimentary canal blood urine
Movement
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ability to sense changes and react
Responsiveness
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break down and absorption of nutrients
Digestion
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all chemical reactoins in body breakdown complex molecules to smaller build smaller to larger produce energy make body structures
Metabolism
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removing wastes produced during metabolic reactions and digestion primarily removed in urine and feces
Excretion
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Produces future generations occurs on cellular level or organismal level
Reproduction
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increases cell size and number of cells
Growth
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Nutrients Oxygen Water Stable body Temperature Atmospheric Pressure
Survival needs
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chemiclas for cell building carbs proteins lipids vitamins minerals
Nutrients
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required for chemical reactions
oxygen
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60-80 of body weight provides for metabolic reaction
Water
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must be appropriate for gas exchange
Atmospheric Pressure
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maintaining stable environment dynamic state of flux imbalance results in disease
Homeostasis
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Neural and Hormonal control systems Receptor Control Center Effector
Homeostasis Regulation
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sensor that monitors and responds to changes in environment sends information to control center Brain
Receptor
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Determines set point Level at which variable is maintained Analyzes information determines appropriate response
Control Center Brain
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responds to signals from brain afferent IN efferent OUT
Effector
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Homeostatic mechanisms to keep body levels within a normal range can vary from one person to another positive and negative
Feedback Mechanisms
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Most common effectors produce response opposite of stimulus bring value back to set point shut off or reduce stimulus
Negative Feedback mechanism
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promotes further push from set point used in blood clotting and child birth Keep clotting until bleeding stops
Positive Feedback mechanism
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terms to prevent misunderstanding position direction regions structures
Language of Anatomy
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Standing erect face forward arms at side palms fwd fingers down feet forward parallel and flat
Standard Anatomical position
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Up
Superior
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Down
Inferior
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Front
Anterior Ventral
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Back
Posterior Dorsal
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toward midline
Medial
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Out
lateral
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up extremity
Proximal
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Down extremity
Distal
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toward top
Superficial
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toward center
Deep
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Sagital Frontal Transverse
Body Planes
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down middle split left and right
Sagital
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split front and back
Frontal
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split top and bottom
Transverse
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Dorsal Ventral
Body Cavities
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Cranial houses brain spinal houses spinal cord
Dorsal Cavity
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Throacic houses heart lungs and others 2 plural cavities surround lungs Mediastium pericardial
Ventral Cavity
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separates plural cavity contains esophagus trachea aorta thymus heart
Mediastium Cavity
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surrounds heart
Pericardial Cavity
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abdominal cavity Most digestive organs Pelvic cavity enclosed by hip bones coxal bones
Abdominopelvic cavity