In: Anatomy and Physiology
In: Anatomy and Physiology
a) Describe briefly the clinical importance of the following Antigens, Antibodies and markers. HB e Ag, HB c Ag, HB S Ag, HBV DNA, Anti HB C Ab (core antibody), HB e Ab, HB S Ab
b) What are the extra-hepatic manifestations of Hepatitis C?
c) Describe briefly the clinicopathologic syndromes of viral hepatitis.
d) How will you differentiate autoimmune hepatitis from viral hepatitis
In: Anatomy and Physiology
In: Anatomy and Physiology
In: Anatomy and Physiology
3) What is the creatinine clearance test? How is it be used to estimate glomerular filtration rate?
In: Anatomy and Physiology
1) Describe how CD8 T-cells contribute to cell-mediated immunity. [Be sure to provide a short general overview first, and then provide specific ways in which T cells destroy their target cells].
In: Anatomy and Physiology
In: Anatomy and Physiology
Which of the following statements about cardiac anatomy is CORRECT:
A. Papillary muscles contract to open the AV valves.
B. Cardiac cells in the SA node are functionally coupled by chemical synapses.
C. The heart does not have its own arteries, capillaries, and veins because it obtains vital substances from the blood that is being pumped through it.
D. The volume of the left ventricle is equal to the volume of the right ventricle.
*Option D is the correct answer, please explain why choice D is correct, and why choice A is incorrect! Thank you!
In: Anatomy and Physiology
Acetylcholine stimulates an action potential in the muscle cell membrane by:
a) Opening chloride channels in the muscle cell membrane
b) Opening channels in the neuromuscular junction which allow sodium to move out of the cell
c) Opening channels in the neuromuscular junction which allow potassium to move out of the cell
d) Opening channels in the neuromuscular junction which allow sodium to move in and potassium to move out, though sodium moves faster than potassium because both chemical and electrical gradients drive sodium into the cell
e) Opening channels in the neuromuscular junction which allow sodium to move in and potassium to move out, though potassium moves faster than sodium because potassium is closer to equilibrium
Please provide an explanation. Thank you.
In: Anatomy and Physiology
Which of the following is TRUE of the absolute refractory period?
a) It establishes the maximum frequency with which a nerve cell can conduct action potentials
b) It does not end until the Na+/K+ pump has restored the ions to their original locations
c) It establishes the maximum number of graded potentials that can summate
d) Two of the above are correct
d) a) b) and c) are correct
Please provide an explanation. Thank you.
In: Anatomy and Physiology
In: Anatomy and Physiology
In: Anatomy and Physiology
You will provide a summary of the respiratory system from the perspective of inhaled air. Your description should include:
- An organized progression of travel. What organs does the air travel through? What types of tissues and structures are seen within them? What purposes do those structures serve?
- Orientation of those organs within the body using correct directional and regional terminology. For example - it is not adequate to say that air is inhaled via the nose, you should include a description of where the nose is found and where air will progress (i.e. Air is inhaled via the nares in the facial region, and progresses posterior through the nasal cavity towards the naso-pharynx.)
In: Anatomy and Physiology
A young woman is snorkeling and (as an observant physiology student) you understand that she must increase her tidal volume and/or her breathing frequency to maintain her alveolar ventilation rate. Why?
In: Anatomy and Physiology