Science of Anatomy Flashcards
What are atoms?
smallest units of matter
What are molecules?
two or more atoms joined together
What is the structural organization of the human body?
Similar to letters (atoms)> words (cells)> sentences (tissues)> paragraphs (organs)> chapters (organ system)> book (organism)
What does the cardiovascular system do?
Circulates oxygen and carbon dioxide, nutrients (glucose and amino acids), wastes (urea and uric acid), hormones and other material throughout body
What does the cardiovascular system contain?
circulatory system—blood-heart-blood vessels
What does the respiratory system do?
Gas exchange—oxygen into the body carbon dioxide out of the body—also involved in sound production and pH balance!
Think about P in production for PH balance!!!
What does the respiratory system contain?
lungs and trachea
What does the digestive system do?
IDEA
Ingestion-digestion-absorption-excretion
Carbohydrates→ monosaccharides
Fats→ fatty acids and monoglycerides
Proteins→ amino acids
Fats- has triglycerides> everything gets broken down to mono+ whatever it gets breaken down to!
What does the digestive system contain?
Abdomen and small intestine
What does the urinary system do and contains?
(kidneys—urinary bladder)
Excretes wastes and excess material (urea—uric acid—creatinine)
Urea (Ur-) similar to Uric acid (Ur-)> Think about this then creatine> kidney function
What does the immune system do?
Protect against foreign substances (WBCs—antibodies)
What does the reproductive system do?
Creates life
What does the integumentary system do and contain?
(skin—hair—nails)
Physical—Chemical—Biological barrier which helps keeps substances out of or in the body—also involved with temperature regulation
What does the skeletal and musculo system do and contain?
(skeletomuscular system)
Work together to move the body—muscles move bones around joints
(Ligaments (similar to libido so focus on B- B to B)
(Tendon> change to the N to M and D to B to focus on- M to B)
What does the neuro and endocrine system do?
Control systems of the body; nervous system uses electrical impulses and the endocrine system uses hormones (neuroendocrine)
What is the function of homeostasis?
when the body maintains a more or less stable state (internal body environment);
condition of equilibrium (like yin and yang); will shut off upon maintaining that state
What is dynamic equilibirum?
conditions fluctuate around a set point ( average)
What is the negative and positive feedback system?
Negative Feedback System (Loop)- reverse a change
Positive Feedback System (Loop)- strengthen or reinforce a change (amplification)
What are some examples of the negative feedback system?
maintaining temperature, blood pressure, and glucose levels
What is the negative feedback system?
Receptors (monitor: everywhere all over body)>Afferent pathway (input)> CNS ( integrates sensory info and sends out motor commands)> efferent pathway (output)> Effector ( anything that carries out command out of control center such as organ or gland)
Stimulus> receptor>CNS> effector