ANAT 100 Lecture Notes - Lecture 8: Simple Squamous Epithelium, Coronary Sinus, Kidney Bean
19 Apr 2018
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Functions of blood: transporting elements throughout the body, regulating bodily functions such as temperature, protecting the body through immune responses. Physical characteristics: viscosity: 4x more viscous than water, temperature: 38 c, ph: 7. 35-7. 45, volume in average individual: 5l. Components of blood: plasma: accounts for 55% of total volume of blood, which is made of 92% water and 8% solutes. When clotting proteins are removed, remaining fluid is termed serum: plasma proteins: albumin, fibrinogen, globulin account for 7% of solutes. Inorganic salts: electrolytes such as sodium, potassium, calcium, nutrients, organic wastes make up remaining 1: formed elements: make up 45% of blood, erythrocytes: also known as red blood cells (rbcs). Contain hemoglobin to transport oxygen and carbon dioxide throughout body. Features: (cid:862)non true (cid:272)ells(cid:863) (cid:271)e(cid:272)ause they la(cid:272)k a nu(cid:272)leus: 8um in diameter and 2um thick. Lifespan is approximately 120 days: thrombocytes: also known as platelets and are smallest formed elements of blood.
