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To discuss:
Three ways of quantifying blood RBC and hemoglobin levels, provide their definitions and units of measurements, and give reasons for differences in levels among males and females.
Introduction:
Blood parameters, including cell counts and levels of substances in blood, indicate the current state of an individual’s health, and therefore, measuring blood parameters is a vital part of clinical diagnosis of various medical conditions. RBC and hemoglobin levels specifically indicate the oxygen-
Standard methods of measuring blood RBC and hemoglobin levels in combination with test results reported in standard units help draw quick conclusions from lab reports. The mean RBC count in males is between 4.6 and 6.2 million/µL; that in females is between 4.2 and 5.4 million/µL. Hemoglobin levels in males range from 13–18 g/dL and in females range from 12–16 g/dL. The hematocrit, that is, the packed cell volume is between 42% and 52% in males and between 37% and 48% in females.
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Chapter 18 Solutions
Anatomy & Physiology: The Unity of Form and Function (Standalone Book)
- What is the opening indicated by the pointer? (leaf x.s.) stomate guard cell lenticel intercellular space none of thesearrow_forwardIdentify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forward
- Identify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forwardIdentify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forward
- What type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forwardWhat specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forward
- Identify the tissue. parenchyma collenchyma sclerenchyma ○ xylem O phloem O none of thesearrow_forwardPlease answer q3arrow_forwardRespond to the following in a minimum of 175 words: How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients? What are some potential ethical issues associated with using this technology? Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.arrow_forward
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