Prerequisites Biology 101 102 103 104 or Biology 115 wlab There is a quantitative lab BMEG 236 intended for engineering majors It is taught by Dr Yuxin Liu Office hours Dr Sue ID: 699140
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Slide1
Human Physiology
Biology 235
Prerequisites
: Biology 101, 102, 103, 104
or Biology 115 w/lab
There is a quantitative lab (BMEG 236) intended for engineering majors.
It is taught by Dr.
Yuxin
LiuSlide2
Office hours:
Dr. Sue
Raylman
Mon and Wed 12:00 – 1:50
5110 LSB
sphilhow@wvu.eduSlide3
http://www.as.wvu.edu/~sraylman/physiology/
WebsiteSlide4
1. Name
2. Major
3. Your future plans…(what type of job do you see yourself pursuing?)
4. What information do you most want to learn about the human body? (3 topics)
Assignment #1
due Jan 15Slide5
Come to class
Take good notes Read the text as we go along
Success in Biology 235 is simple:Slide6
During the minute that it will take you to read this page:
Your eyes will convert the image
from this page into electrical signals
(nerve impulses) that will transmit
the information to your brain for
processing.
Your heart will beat 70 times,
pumping 5 liters (about 5 quarts)
of blood to your lungs and another
5 liters to the rest of your body.
Approximately 150 million old
red blood cells will die and be
replaced by newly produced ones.
More than 1 liter of blood will flow
through your kidneys, which will
act on the blood to conserve the
“wanted” materials and eliminate
the “unwanted” materials in the
urine. Your kidneys will produce
1 ml (about a thimbleful) of urine.
Your digestive system will be
processing your last meal for
transfer into your bloodstream for
delivery to your cells.
You will use about 2 calories of
energy derived from food to support
your body’s “cost of living,” and
your contracting muscles will burn
additional calories.
Besides receiving and processing
information such as visual input,
your brain will provide output
to your muscles to help maintain
your posture, move your eyes
across the page as you read, and
turn the page as needed. Chemical
messengers will carry signals
between your nerves and musclesto trigger appropriate musclecontraction.
You will breathe in and outabout 12 times, exchanging6 liters of air between theatmosphere and your lungs.
Your cells will consume 250 ml(about a cup) of oxygen andproduce 200 ml of carbon dioxide.Slide7
(a)
Chemical level
: a molecule in
the membrane that encloses a cell
(b)
Cellular level: a cellin the stomach lining(c)
Tissue level
: layers of
tissue in the stomach wall
(d)
Organ level
:
the stomach
(e)
Body system
level
: the digestive
system
(f)
Organism levelSlide8
Muscle
- 3 kinds: skeletal, cardiac, and smooth
TissuesSlide9
Muscle - 3 kinds: skeletal, cardiac, and smooth
Nervous - transmit electrical impulses
TissuesSlide10
Muscle - 3 kinds: skeletal, cardiac, and smooth
Nervous - transmit electrical impulses
Epithelial - sheets and glands
TissuesSlide11
Muscle - 3 kinds: skeletal, cardiac, and smooth
Nervous - transmit electrical impulses
Epithelial - sheets and glands
Connective
- few cells dispersed in an extracellular matrix (more cell types than you probably think)
TissuesSlide12Slide13
The ECF is the internal environment.
Homeostasis - maintaining a stable internal environmentSlide14
Homeostasis doesn’t imply that ECF is
unchanging or that your body never goes ‘out of balance’…sometimes it must!Slide15
Body systems communicate and feedback w/one another
Negative feedback opposes an initial change. It maintains homeostasis. Slide16
Within the body you need:
control center sensor
effector
Negative feedback
Body temperature
and shiveringSlide17Slide18
Positive feedback
amplifies an initial change
Ex: oxytocin
release at childbirthSlide19
Recall basic cell physiologyNext class I will assume you know the basic functions of these structures:
Smooth and rough endoplasmic reticulumGolgiPeroxisomesLysosomesMitochondriaBasic structure of the plasma membraneSlide20
Recall basic cell physiologyNext class I will assume you remember basic information on these processes:
GlycolysisKrebs cycle (or Citric Acid, TCA cycles)Oxidative phosphorylation (or ETC)ATP production under aerobic vs. anaerobic conditions