{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

BLOOD - (a chemical signal from tissue chemo taxis(4...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1 BLOOD (HEMA OR HEMO) 1. Functions a. Transport - nutrients, hormones, glucose, cholesterol, oxygen, ions, water, potassium b. Clotting c. Regulates pH d. Defense against pathogens (disease producing organisms) e. Stabilize body temperature 2. Characteristics a. Blood volume in avg. person - 5-6 quarts b. Six times thicker than water c. pH of blood is basic, 7.35-7.45 d. Temperature is 100.4 degrees 3. Components a. Plasma (liquid part) i. 90% water, 10% resp. gases, hormones, proteins (1) Albumin - large, regulates water movement between blood and tissues (2) Globulins - transport of vitamins, some are antibodies (3) Fibrinogens - clotting protein b. Formed elements i. Red blood cells/erythrocytes (RBC) - 99.9% - 120 day lifespan (1) Carry oxygen and carbon dioxide (2) flattened disks (3) Anucleate (4) Contain hemoglobin - protein contains iron (a) 4 protein chains - each can bind 1 oxygen molecule ii. WBC - leukocytes - many fewer (1) contain nuclei (2) major function - defense, clean up crew (3) WBCs can slip in and out of blood - diapedesis
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: (a) chemical signal from tissue - chemo taxis (4) leukocytosis - high WBC count (5) leukopenia - low WBC count (6) leukemia - very high WBC count, cancer (7) Wbc types (a) Granulocytes - live for 12 hours, also called PMNs (i) neutrophils - colorless - most abundant (ii) eusinophils - red (iii) basophils - blue/purple (b) Agranulocytes (i) lymphocytes - immune system (ii) monocytes - into tissues - macrophages - too big to eat (8) platelets - function in blood clotting (a) thrombocytes (b) megakaryocytes 4. Blood types a. Determined by antigenic components on surface of RBCs b. 4 main blood types - A, B, AB, O 5. WBC ABUNDANCE GREATEST TO LEAST a. Never let monkeys eat bananas 6. Hemostasis - blood clotting a. Vascular phase - blood vessel constricts b. Platelet phase - stick to damaged vessel wall c. Coagulation phase - clotting cascade, need calcium and vitamin K...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern