Ch. 8 Blood & blood spatter

What happens to the shape of a blood droplet as the angle of release changes from a 90-degree drop toward a 10-degree drop?

• It becomes more wider than long.

• It becomes more longer than wide

• It becomes more circular

• It has more spines

What happens to the shape of a blood droplet as the angle of release changes from a 90-degree drop toward a 10-degree drop?

• It becomes more wider than long.

• It becomes more longer than wide.

• It becomes more circular.

• It has more spines.

Blood has been studied to one degree or another for thousands of years

• True

• False

In 1728, Sir William Harvey determined that there was a continuous circulation of blood within the body.

• True

• False

Sir William Osler discovered platelets in 1874.

• True

• False

The presence or absence of antigens on white blood cells determines a person's blood type.

• True

• False

Tags

NGSS.HS-LS3-2

Red blood cells:

• carry respiratory gases, mainly oxygen and carbon dioxide.

• fight disease and foreign invaders

• aid in blood clotting

• are involved in repairing damaged blood cells

Tags

NGSS.HS-LS2-5

The immune system functions to protect our bodies by identifying cells or molecules that are foreign, such as

• viruses

• bacteria

• parasites

• All of these choices

Blood is the circulating tissue consisting of two types of cells: red blood cells and platelets.

• True

• False

Tags

NGSS.MS-LS1-3

White blood cells secrete proteins:

• known as antibodies, which assist in the immune response.

• known as viruses, which assist in the immune response.

• known as bacteria, which assist in the immune response.

• known as parasites, which assist in the immune response.