In: Anatomy and Physiology
1. What percentage of a drawn blood sample would be plasma after it has been spun down in the centrifuge?
2. LIST Three factors that affect Stroke Volume. b. LIST Three factors that affect Heart Rate? What is EDV? What is ESV?
In: Anatomy and Physiology
In: Anatomy and Physiology
John was at a pool party. Some of the people had a little too much to drink and a fight broke out. John was hit in the head with a strange object and temporarily lost consciousness. We he regained consciousness, he was lying supine on the ground and someone was putting a compress over his wound.
John complained that his vision was blurry so he quickly removed the compress from his head and jumped up. We he stood up, he became dizzy and fell to the ground again. Now he was in more pain because he hit his head in the exact same spot when he fell. This time, the wound on his head opened up even more and blood started to pour down his face. John became unconscious again and the ambulance rushed him to the hospital.
Based on the above scenario, answer the following questions?
1. Why did John become unconscious?
2. Why do you think his vision became blurry?
3. The best position for John is to lay down on the ground. Explain why this is the best position as it relates to blood flow.
4. Why did the person put a compress on his wound?
5. Name 3 blood vessels that are located in his head.
6. If the object had hit John's neck causing a deep laceration in his neck, explain why a deep wound to the neck can be life threatening as it relates to blood flow.
In: Anatomy and Physiology
How does reduced blood flow to the kidneys affect:
a) Blood pressure
b) Blood Volume
c) GFR
d) MAP
In: Anatomy and Physiology
A single drop of water has the fate of ending up one day in urine. Once it has become filtrate, it contains glucose, urea, H+, amino acids, Na+, Cl-, K+, and, of course, water. Discuss what happens with each of these, within the context of the three main functions of the nephron (filtration, reabsorption, and secretion).
In: Anatomy and Physiology
In: Anatomy and Physiology
Use the coronavirus as a case study to illustrate major physiological concepts (“big ideas”). For example, how does it relate to biological levels, cell signaling, etc. Include specific details and examples in your answer for full credit
In: Anatomy and Physiology
Long-term Potentiation (LTP) and Long-term Depression
(LTD). Please discuss these two forms of synaptic plasticity that
can be studied in research and represent molecular and cellular
events underlying activity-dependent synaptic plasticity. What are
LTP and LTD? What chain or cascade of events takes place that lead
to LTP AND LTD? Specifically now address Early vs. Late LTP and
effects of cAMP and PKA...
In: Anatomy and Physiology
1. A blood smear is used to diagnose malaria. In patients with malaria, the protozoa can be found near and inside red blood cells. Explain why a microscope capable of high magnification and high resolution would be needed to diagnose malaria.
| Structures inside a cell including protozoa are very small and cannot be seen with low magnification. |
| Malaria symptoms are non-specific and microscopy is the only way to discriminate between several diseases. |
| A microscope is needed to count the red blood cells present in a sample. |
| A compound microscope with high magnification and high resolution is used to get a clear, three-dimensional view of the protozoa and the shape of the red blood cells. |
2. Histopathology is the use of microscopes to view tissues to diagnose and track the progression of diseases. Why are thin slices of tissue ideal for this procedure?
| Thin slices are used so that pathologists can clearly see individual cells for their assessment. Too many layers of cells makes it difficult to focus and hard to see what changes have occurred in the tissues. |
| Thick sections would waste a lot of material and would require larger patient samples. |
| Thin slices are easier to prepare. |
| Thin slices are used because thicker tissue slices are more difficult to stain, and it is harder to see cellular details. |
In: Anatomy and Physiology
Explain briefly how hydration levels affect skinfold, BIA and DXA measurements.
In: Anatomy and Physiology
1. Explain the short term control of blood pressure in a resting individual and also during exercise. What are the main differences in blood pressure control in these two different situations?
Use diagrams
In: Anatomy and Physiology
Immune System and Lymphatic System
In: Anatomy and Physiology
Condition : . Turner Syndrome (45, XO) in XO individual (compare with typical XX)
1.a) compare what type of external genitals develop in the condition you chose versus typical development of individual with the same genotype (sex chromosomes):
1.b) compare what type of secondary sexual characteristics develop in the condition you chose versus typical development of individual with the same genotype (sex chromosomes):
In: Anatomy and Physiology