Anatomy & Physiology . Warm Up: List all the organs that you know in the human body (in any order). What organs did you come up with?. Look at the list of organs we have listed on the board… In your science notebook, organize them in a way that makes sense to you…
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Warm Up: List all the organs that you know in the human body (in any order).
human because they are:
Why these two words????
Atoms combine to form molecules
water, sugar, fats, proteins
The function of a molecule is related to its function
Collagen molecules are ropelike protein fibers that give skin structural strength and flexibility
Nucleus → Membrane bound structure that contains deoxyribonucleic acid (DNA) which is the set of instructions for the synthesis of all the body’s proteins.
- Skin, hair, sweat and oil glands
allows it to support and protect?
When you consider the structure of an organ, cell, or anything for that matter you must also consider its function!
Person standing erect with face directed forward, upper limbs hanging to side and palms of the hands facing forward.
Supine- person lying face upward.
Prone- person lying face downward.
Note: the brackets surrounding the word glucose in the above paragraph mean “concentration of glucose,” i.e., how much glucose is dissolved in a particular fluid (blood in this case)
Sensed by pressure receptors in aortic arch and carotid sinus
Input sent via afferent pathway to medulla oblongata
Heart rate & force of contraction decrease
Current BP compared with set point and error signal generated
Blood vessel diameter increases
Output sent along efferent pathway to heart and blood vessels
What this means is that the homeostatic variables are NOT kept rigidly fixed upon a single value. They are kept within a certain range, and when they exit that range – that’s when negative feedback loops turn on to bring them back.
Is your body temperature always exactly 98.6F?
Rise in body temperature
Increase in body heat production
Increase in body metabolism