Capillaries

Blood clot

The glomerulus is the cluster of capillaries surrounded by Bowman's capsule.

Around the lungs,the blood is separated from the air inside each alveolus by only two cell layers; the cells making up the wall of the alveolus and the capillary wall itself. This is a distance of less than a thousandth of a millimetre. Because the air in the alveolus has a higer concentration of oxygen than the blood entering the capillary network, oxygen diffuses from the air across the wall of the alveolus and into the blood. That is why the distance is important.

I think the blood moves in veins similarly to arteries but in the opposite direction. I mean as the heart pushes the blood into arteries, in an opposite way when heart is contracted the blood is pulled to it as a reaction for the action of pushing.

1. Study the diagram of a chicken wing. Use the diagram to help you locate certain muscular and

skeletal structures.

2. Thorough washing of hands, countertop and instruments have to be done at the

end to prevent salmonella contamination.

3. Your teacher will give you a chicken wing. Rinse it well with cool water, dry it with paper towels, and

place it in a dissecting tray.

4. Examine the wing at the point where it was removed from the body. Depending on the way the wing

is cut, you might see cartilage and bone marrow.

5. Carefully extend the wing to find out how many major parts it has.

6. Using the scissors, cut down the middle of the skin, starting at the top end of the upper wing. Try not

to cut through the muscles below the skin. Do this by piercing the skin and then slipping the scissors

between the skin layer and the muscle. Cut until you reach the shoulder joint. (See figure 1, Cut 1.)

Only cut through the skin. CAUTION: Cut away from your body and your classmates.

7. Cut down the sides of the skin to make a T-shaped cut. Start at the first cut and cut away from it in

both directions. Peel the skin and cut to loosen it. (Note: the chicken skin can be very difficult to remove.

Take your time peeling it back so as not to damage the tissues underlying it.) (See Figure 2, Cut 2.)

8. Look for yellowish tissue clumped together beneath the skin. This is fat tissue, made of fat cells.

9. Examine the muscles, the bundles of pink tissue around the bones. Find the two groups of muscles in

the upper arm. Hold the arm down at the shoulder, and alternately pull on each muscle group. Observe

what happens on each muscle group. Observe what happens.

Show teacher that you did this. Teacher initials: _____________10. Find the two groups of muscles in the lower arm. Hold down the arm at the elbow, and alternately

pull on each muscle group.

11. Find the tendons--shiny white tissue at the ends of the muscles. Notice what parts the tendons

connect.

Show teacher that you did this. Teacher initials: _____________

12. Remove the muscles and tendons. Find the ligaments, the whitish ribbon like structures between

bones.

Show teacher that you did this. Teacher initials: _____________

CLEAN UP

Dispose the chicken parts according to your teacher's instructions. Wash your

hands with soap and water. Thoroughly wash the lab countertop with 409.

Thoroughly wash the scissors with hot soapy water. Set instruments on a clean

paper towel to dry.

Post Lab activities

1. Color all of the muscles in the wing RED.

2. Color all of the tendons in GREY.

3. Color the locations where you would find ligaments in GREEN.

4. Color the bones YELLOW.

4. Label (with an arrow) the direction the radius and ulna move when the triceps contract.

5. Circle the three joints shown in the diagram.

6. Label the ball and socket joint, hinge joint, and peace.

There unique because they contribute blood through out our body

arteries are the biggest and capilleries are small,but veins are the same size range with arteries

Many arterioles that penetrate the Submucosa give rise to capillary networks that supply the Intestinal Glands and villi with blood.

Fluid and particles absorbed into lymph capillaries

true

Red blood cells does not have a direct contact with the body cells.A substance called the tissue fluid does.It leaks out from the blood capillaries carrying oxygen and food substance to the body cells.It then carry waste materials out of the body cells.However, some of this substance does return to the blood while some are collected in the lymph vessel.The tissue fluid in the lymph vessel is called lymph.

no because the deoxygenated blood come through the artery which sends message to the pumonary cells which sends siganls for the heart to the oxygenated drugs

glomerulus

do cappilaries have muscular walls

function of capillaries in leaf

afferent arteriole

The capillaries are one celled blood vessels with no real walls. It is primarily used to diffuse nutrients and gas through. It is known to be the most functional unit of the blood vessels.

True

this is a false statement blood capillaries do not exchange in diffrent part of your body

William Harvey

peritubular capillaries

The subsurface layer in which groundwater seeps up from a water table by capillary action to fill pores.

true

I think the answer you are looking for is the glomerulus.

Waste and deoxygenated blood