Физиология 25-50

The number of erythrocytes is 674,000 cells/m3 in the amphibian group:

• Grass frogs

• Salamanders

• Tree frogs

• Newts

• Toads

The lowest number of leukocytes (1,500/mm3) is found in the amphibian group:

• Newts

• Salamanders

• Tree frogs

• Toads

Red blood cells in reptilies:

• Orthochromatic normocytes

• Eosinophilic cells

• Small non-granular lympholeukocyte

• Basophilic round nuclear cells

• Spindle round nuclear cells

Compared to homeothermic animals, reptiles generally have

• A lower number of red blood cells

• A higher number of red blood cells

• A similar number of red blood cells

• Larger red blood cells

• The absence of red blood cells

The number of platelets is 1,447,000/mm3 in the reptilian group:

• Snakes

• Geckos

• Crocodiles

• Turtles

• Lizards

The number of red blood cells in 1 mm3 of chicken blood:

• 1,000,000

• 2,300,000

• 500,000

• 3,000,000

The smallest nuclear red blood cells are found in:

• Birds

• Fish

• Mammals

• Reptiles

The term "spindle cells" in bird blood refers to:

• A precursor cell to erythrocytes

• A precursor cell to leukocytes

• A type of platelet

• A type of white blood cell

• A type of white blood cell

Granular white blood cells of a bird with a lobed, two-lobed nucleus are similar to the following human cells:

• Eosinophils

• Neutrophils

• Basophils

• Monocytes

• Lymphocytes

Unlike mammals, bird lymphoid tissue is:

• Not completely separated from myeloid tissue

• Primarily responsible for antibody production

• More concentrated in lymph nodes

• The main site of red blood cell production