Friday, 28 November 2014
Tuesday, 25 November 2014
Monday, 24 November 2014
Wednesday, 19 November 2014
Monday, 17 November 2014
colon cancer video
Friday, 14 November 2014
circulatory system reveiw
The central organ of the cardiovascular system is the heart. This is a hollow, muscular organ that contracts at regular intervals, forcing blood through the circulatory system.
2. The heart is cone-shaped, about the size of a fist, and is located in the centre of the thorax, between the lungs, directly behind the sternum (breastbone). The heart is tilted so that the base is tilted to the left.
3. The walls of the heart are made up of three layers of tissue:
a) The outer and inner layers are epithelial tissue.
b) The middle layer, comprising the cardiac muscle of
the heart itself, is called the myocardium.
4. For obvious reasons, the cardiac muscle is not under the conscious control of the nervous system, and can generate its own electrical rhythm (myogenic). For the same reasons, cardiac muscle cannot respire anaerobically and so the muscle cannot get tired (or develop cramp!)
5. Cardiac muscle has a rich supply of blood, which ensures
that it gets plenty of oxygen. This is brought to the heart
through the coronary artery. Since the heart relies on
aerobic respiration to supply its energy needs, cardiac muscle cells are richly supplied with
mitochondria.
. The heart can be thought of as two pumps sitting side by side – each of which has an upper atrium and a lower ventricle – a total of 4 chambers. It functions as two pumps inside one.
2. The right side of the heart pumps ‘deoxygenated blood’ (actually, blood low in oxygen) from the body into the lungs, where gas exchange takes place. In that process, carbon dioxide is lost to the air and oxygen is absorbed. This oxygen is almost all carried by the Red Blood Cells (RBC’s).
3. The left side of the heart pumps oxygenated blood from the lungs to the rest of the body.
4. The heart is enclosed in a protective membrane-like sac called the pericardium, which surrounds
the heart and secretes a fluid that reduces friction as the heart beats.
5. The atria (upper chambers) of the heart receive blood coming into the heart. Then have thin walls, so allowing them to be filled easily. They pump the blood into the ventricles (lower chambers), thus filling them.
6. The ventricles pump blood out of the heart and the left ventricle has the thickest walls of the heart because it has to do most of the work to pump blood to all parts of the body. This is where the blood has the highest pressure.
7. Vertically dividing the two sides of the heart is a wall, known as the septum. The septum prevents the mixing of oxygenated (left side) and deoxygenated (right side) blood.
8. It also carries electrical signals instructing the ventricles when to contract. These impulses pass down specially-modified muscle cells (Purkinje fibres), collectively known as the Bundle of His.
respitory lab
bubbles during

Thursday, 13 November 2014
joints
fittness testing second time
excersize science fitness goal
lung inflation
crash course video
Something interesting that i learned from the video is that, Simple diffusion is where some animals can take in oxygen without lungs but through wet membranes.
Interm report
fittness testing
Anaerobic: My anaerobic fitness work out would be the long jump.
Glycolysis: My glycolysis fitness work out would be the steps on the benches.
Agility: My agility fitness work out would be the 50m sprint
Flexibility: My flexibility fitness work out would be the back bridge, climbing down a wall.
Grouse Grind
my vo2 max
heart disection lab
The outter part of the heart was larger than I expected it to be, the color was also not what I had imagined a " heart" being. I always imagine a heart in our body being the shape of a real heart but when we saw the heart obviously it wasn't in the shape of a real heart. the heart was very jelly like and slimy yet firm. The atria and pulmonary trunk were very easy to find. the aorta was a big hole and the pulmonary trunk was a flap at the top as well.
Internal part of the heart:
The internal anatomy of the heart was very interesting to see. it was different then I expected. if you haven't studied the heart you wouldn't know what is really happening in the heart. The chordae tendanae and av valve looked similar inside of the heart, the chordae tendane felt like hard string and the av valve were soft pink and mushy.
Questions:
3. The left ventricle is more muscular than the right ventricle because the left ventricle pumps blood to the entire body and right only does to the lungs.
4. The left AV Valves (mitral) function is to close when the left ventricle contracts to prevent back flow of the blood from the left atrium and right AV Valves (tricuspid) function is to close when the right ventricle contracts. Then the blood from the ventricles are able to go out of the heart into the blood vessels during contraction. Mitral and tricuspid valves open when the ventricles relax, to let blood to enter the ventricles from the atria.
fitness friday
heart anatomy
STRUCTURE
|
FUNCTION
|
DEOXY/OXY BLOOD
|
LEFT ATRIUM
|
-collects oxygen-rich blood from the lungs then forces through the mitral valve into the left ventricle
|
OXY
|
LEFT VENTRICLE
|
-largest and strongest chamber, wall is only half an inch thick and it pushes blood through aorta valve into the body
|
OXY
|
RIGHT ATRIUM
|
-collects oxygen-poor blood returning coming back from the body and then it forces it through the tricuspid valve then into the right ventricle.
|
DEOXY
|
RIGHT VENTRICLE
|
- collects oxygen-poor blood from the right atrium and then forces it through the pulmonary valve then into the lungs
|
DEOXY
|
PULMONARY ARTERY
|
-carry blood from the heart to the lungs to pick up oxygen
|
DEOXY
|
AORTA
|
- the largest artery carries oxygen-rich blood from the heart to the rest of the body
|
OXY
|
PULMONARY VEINS
|
-carry oxygen-rich blood from the lungs back to the heart
|
OXY
|
SUPERIOR VENA CAVA
|
-oxygen-poor blood from the upper body returns to the heart through the superior vena cava
|
DEOXY
|
INFERIOR VENA CAVA
|
-oxygen-poor blood from the upper body returns to the heart through the inferior vena cava
|
DEOXY
|
ATRIOVENTRICULAR VALVES (Mitral & Tricuspid)
|
tricuspid controls blood flow from the right atrium to the right ventricle and mitral controls flow from the left atrium to the left ventricle
|
Deoxy/oxy
|
CHORDAE TENDINAE
|
- bring right ventricular walls closer together during contraction. -pull the AV Valves open during atriole systole
|
Left oxy
Right deoxy |
SEMI LUNAR VALVES (Pulmonary & Aortic)
|
-pulmonary valve control blood flow from right ventricle to the pulmonary arteries and aortic valve controls blood from left ventricle to aorta
|
deoxy/oxy
|
SEPTUM: separates left from right- /
|
weight room
40 pounds 3 reps
50 pounds 3 reps
leg curl: 2 sets
40 pounds 2 reps
leg press: 4 sets
115 pounds 20 reps x2
Cardio: spin class we did as a little group for 20 minutes
I don't enjoy going to the weight room at school, I feel there isn't much to do with all the students in a small room, its different then going to a regular gym.
Monday, 6 October 2014
Thursday, 25 September 2014
Heart
Coronary arteries:
- It needs oxygen -rich blood to survive
-blood is supplied to the hearty by its own vascular system called the coronary circulation
- aorta branches off into 2 main coronary blood vessels
- these coronary arteries branch off into smaller arteries which supply oxygen-rich blood to the entire heart muscle
- right coronary artery supplies blood mainly to right side of heart, right side is smaller because it pumps blood only to lungs
- left coronary artery branches into left anterior descending artery and the circumflex artery, supplies blood to the left side of the heart
-left side is larger and more muscular because it pumps blood to the rest of the body
STRUCTURE
|
FUNCTION
|
DEOXY/OXY BLOOD
|
LEFT ATRIUM
|
collects oxygen-rich blood returning from the lungs and then forces it through the mitral valve and into the left ventricle
|
OXY BLOOD
|
LEFT VENTRICLE
|
largest and strongest chamber in heart, wall 1/2 inch thick but strong enough to force push blood through aortic valve and into your body.
|
DEOXY BLOOD
|
RIGHT ATRIUM
|
collects oxygen-poor blood returning from the body, then forces it through the tricuspid valve and into the right ventricles
|
OXY BLOOD
|
RIGHT VENTRICLE
|
collects oxygen-poor blood from right atrium and then forces it through pulmonary valve and into lungs.
|
DEOXY
|
PULMONARY ARTERY
|
carries blood into the lungs and picks up oxygen
|
DEOXY BLOOD
|
AORTA
|
largest artery, carries oxygen-rich blood from lungs back to heart.
|
OXY BLOOD
|
PULMONARY VEINS
|
carries oxygen-rich blood from lungs back to the heart.
|
OXY BLOOD
|
SUPERIOR VENA CAVA
|
oxygen-poor blood from the upper parts of the body returns to the heart the superior vena cave
|
DEOXY BLOOD
|
INFERIOR VENA CAVA
|
oxygen-poor blood from the lower parts of the body returns to the heart through the inferior vena cava
|
DEOXY BLOOD
|
ATRIOVENTRICULAR VALVES (Mitral & Tricuspid)
|
controls blood flow from the left atrium into ventricle
|
OXY BLOOD
|
CHORDAE TENDINAE
|
cord like tendors that connect the papillary muscles to the tricuspid valve and the mitral valve in the heart.
|
OXY BLOOD
|
SEMI LUNAR VALVES (Pulmonary & Aortic)
|
controls blood flow from the right ventricle into pulmonary arteries
|
DEOXY BLOOD
|
SEPTUM
|
wall of muscle called septum separates left and right atria and left and right ventricles.
|
welcome to human kinetics coop 12 this is me
I have never taken a coop class before but I have friends who did take the coop we had last year here at Sullivan, and it looked fun so this year I decided to take the coop. It seemed like an interesting course and lots to do in it. I took the coop to get a different feel of some classes and learn new things other than what we have. my plans for after high school are to go to Sauder and get my license for real estate and mortgage breaking and then go to sfu and take business classes then get a degree in something in the business field. when I am not in school I like to sit around and watch t.v., go for walks, sleep, and go on the computer. over the summer I got really lazy and never wanted to do anything but I did get some exercise in while I sat around sometimes. over the semester I wish to become more active and play more sports. hopefully this course will teach me lots more and be a different experience than what I have already experienced in my regular classes.