What is the glomerulus, and what happens here? How is the glomerulus, the afferent arteriole, the efferent arteriole, and the peritubular capillaries associated with the nephron?
In: Anatomy and Physiology
During cell division, DNA undergoes replication. DNA is transcribed
into mRNA and the genetic code is translated into a polypeptide
sequence. Out of these three processes, which is most likely to be
the site a deletion, frameshift, insertion missense, nonsense,
point and silent mutation or alteration occurred? Explain why you
have chosen this process. 15 marks
In: Anatomy and Physiology
The immune response to any virus is similar to the one you've mapped out in your flow chart. HIV is an infection that targets and kills helper T cells. Explain why HIV leads to AIDS, or acquired immunodeficiency syndrome, where the immune system is non-functional. Be sure you discuss APCs, helper T cells, cytotoxic T cells and B cells in your answer.
In: Anatomy and Physiology
Describe the ventilatory response to incremental (graded) exercise. Include in your discussion factors that contribute to the alinear rise in ventilation at work rates > 50% VO2max, the location and function of chemoreceptors and mechanoreceptors that contribute to the regulation of breathing.
In: Anatomy and Physiology
What are the components of the central and peripheral nervous system that increase heart rate and blood pressure (include baroreceptors, and both sympathetic and parasympathetic systems)
In: Anatomy and Physiology
In 200 words answer the below: What environmental concerns in your area impact the ability of its inhabitants to breathe safely? What steps can be taken to improve lung health (including lung volume) in general?
In: Anatomy and Physiology
How do patients with thyroid disorders (hyper and hypothyroidism) pair with osteoporosis? Explain in detail the connection between the two disorders. Do they need special considerations in the diagnosis and management of either condition? Are they at a disadvantage compared to an otherwise healthy individual?
In: Anatomy and Physiology
How does osmolarity play a part in water reabsorption? What role does urea play in this process?
In: Anatomy and Physiology
Name three areas of the cerebrum that are critical to the limbic system’s functions. What role does the hypothalamus and fornix play in the functions of the limbic system.
In: Anatomy and Physiology
Explain how reflexes play a critical role in maintaining homeostasis .
In: Anatomy and Physiology
Starting in the right atrium, deoxygenated blood passes through the ___31___ into the ___32___. During ventricular contraction the blood is expelled through the___33___ into the pulmonary trunk and___34___. The blood is carried to the lungs where it is oxygenated through a capillary network and returns to the___35___ via the pulmonary veins. The blood passes through the ___36__ into the___37___. Contraction forces the blood through the___38___ and into the aorta. The aorta has several branches to deliver oxygenated blood throughout the body. The blood passes through capillaries in body tissues where gas exchange occurs and now the blood is deoxygenated. The deoxygenated blood returns from the systemic circuit via the superior & inferior___39___ to the ___40___.
In: Anatomy and Physiology
The relationship between volume and pressure means.....
As volume increases pressure increases and causes air to be expelled from the lungs.
As volume increases pressure decreases and causes air to be expelled from the lungs.
As volume increases pressure increases and causes to be inhaled into the lungs.
As volume increases pressure decreases and causes air to be inhaled in to the lungs.
How does air enter the lungs when we inhale?
We suck air in by contracting muscles in our throat and this causes air to flow down into our lungs pushing out the old air.
We breathe out air creating a vacuum in our lungs. Air flows in to remove the vacuum and replenishes the air.
When we breathe in we actually expand our thoracic cavity by contracting the intercostal and diaphragm muscles. Because the lungs are connected to the thoracic wall yia the pleural fluid the lungs also expand decreasing pressure and air flows in.
None of these are true.
In: Anatomy and Physiology
!!Questions are at the bottom!!
Please read the numbered line story below. Based upon your
knowledge and understanding of anatomy and physiology as presented
in this course, please provide comprehensive responses to each
question presented.
In: Anatomy and Physiology
Being as precise as possible, identify and explain 3 ways that cardiac output and total peripheral resistance are altered to affect blood pressure.
In: Anatomy and Physiology
Outline and diagram the effects of Vasopressin (ADH) on the nephron, and how it promotes water conservation in the kidneys. Be sure to EXPLAIN the cellular mechanisms of action.
In: Anatomy and Physiology