Transcript Class Topics

7/20/2015
Title:
Anat & Phys
8/24/06
Objectives:
Begin Chap 1, the basics of anatomy and physiology.
Class Topics
• Chap 1 notes
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Directional terminology
Body planes
Body cavities
Characteristics of life
Homeostasis
Negative feedback
Positive feedback
“Discovery consists of seeing what everybody else
has seen and thinking what nobody has thought.”
Albert von Szent-Gyorgyi
Monday, July 20, 2015 10:38 PM
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Class Assignments
What
• Article Review
• Read 2000 m Row
• Chapter 1 Test
By When
8/24/06
8/28/06
8/30/06
• Due this class period
• Due next class period
• Due in the future
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Directional Terminology
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Superior (cranial)
Inferior (caudal)
Anterior (ventral)
Posterior (dorsal)
Medial
Lateral
Superficial (external)
Deep (internal)
Proximal
Distal
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Body Planes
• Imaginary lines used to divide the
body
• Frontal (Coronal)
• Sagittal
– Mid-Sagittal
• Transverse (Horizontal)
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Levels of organization
• Chemical
– atoms/molecules
• Cellular
– smallest functional unit
• Tissue
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epithelial
connective
muscular
nervous
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Levels of Organization
• Organ
– two or more types of tissues working
together
• System
– 11 systems
• Organism
– all systems working together
– used for survival and reproduction
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Systems
Name the 11 systems
• Which one isn’t necessary?
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Body Cavities
• Dorsal
– cranial
– vertebral
http://www.templejc.edu/dept/biology/RHicks/biol2404Int/biol2404onl_LAB.htm
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Body Cavities
• Ventral
– thoracic
• pleural
• pericardial
• mediastinum
– abdominopelvic
• abdomen
• pelvic
http://www.templejc.edu/dept/biology/RHicks/biol2404Int/biol2404onl_LAB.htm
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Characteristics of life
• Organization
• Metabolism
– Anabolism
– Catabolism
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Characteristics of Life
• Excitability
– Stimuli
• Muscle and nerve cells
• Growth and Reproduction
– hypertrophy and hyperplasia
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Homeostasis
• Internal environment of the body
kept relatively stable
– state without change
• Actually to maintain this our bodies
are constantly changing
• Hypothalamus - thermostat
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Homeostasis
• Hot
• Cold
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Negative Feedback Loop
• Used to maintain a stable internal
environment
• Triggered by changes in the norm
– usually temperature, pH, or hormonal
From: http://www.biology-online.org/4/2_water_homeostasis.htm
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Negative Feedback
From: http://cgee.hamline.edu/see/questions/dp_balance/dp_bal_feedback.htm
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http://www.polk.edu/INSTRUCT/Mash/drubin/hsc2554/Study%20Questions/SQ25.htm
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http://instruct1.cit.cornell.edu/courses/biog105/pages/demos/105/unit8/hormones.html
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Positive feedback
• Birth
– Oxytocin (causes contractions) is
released due to pressure on the cervix
– More oxytocin is released due to
increased pressure on the cervix
– Ends when the fetus is expelled
• Bleeding
– clotting yields more clotting yielding
more clotting - eventually stopped by
stopped blood flow
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