Blood Cells

Helpfulness: +1
Set Details Share
created 10 years ago by MEKR
908 views
RBC & WBC
updated 10 years ago by MEKR
Grade levels:
College: First year, College: Second year, College: Third year, College: Fourth year
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1
card image

Erythrocyte

Biconcave discs, anucleate, essentially no organelles

2
card image

Hemoglobin structure

Erythrocyte Function-

Protein globin that has two alpha and two beta chains

Heme pigment bonded to each globin chain

Iron atom in each heme can bind to one O2 molecule

Each Hb molecule can transport four O2

3
card image

Sickle-cell anemia

Defective gene codes for abnormal hemoglobin (HbS)

Causes RBCs to become sickle shaped in low-oxygen situations

4
card image

Esinophil

bilobed nucleus

red cytoplasmic granules

Digest parasitic worms that are too large to be phagocytized

Modulators of the immune response

5
card image

Neutrophils

Most numerous WBCs

Mulit-lobed neucleus

Polymorphonuclear leukocytes (PMNs)

Fine granules take up both acidic and basic dyes. Give the cytoplasm a lilac color

Granules contain hydrolytic enzymes or defensins

Very phagocytic—“bacteria slayers”

6
card image

Basophil

Rarest WBCs

bilobed nucleus,

purplish-black cytoplasmic granules that contain histamine (an inflammatory chemical that acts as a vasodilator and attracts other WBCs to inflamed sites)

Are functionally similar to mast cells

7
card image

Lymphocytes

Large, dark-purple, circular nuclei with a thin rim of blue cytoplasm

Crucial to immunity

Two types:
T cells act against virus-infected cells and tumor cells

B cells give rise to plasma cells, which produce antibodies

8
card image

Monocytes

* The largest leukocytes
* Abundant pale-blue cytoplasm
* Dark purple-staining, U or kidney-shaped nuclei
* Leave circulation, enter tissues, and differentiate into macrophages
* Actively phagocytic cells; crucial against viruses, intracellular bacterial parasites, and chronic infections
* Activate lymphocytes to mount an immune response