Questions
Refractory period. A)Which heart cells have a refractory period in their action potential? B)How is the...

Refractory period.
A)Which heart cells have a refractory period in their action potential?
B)How is the prolonged refractory period generated in cardiac muscle?
C) what is the advantage of a prolonged refractory period?
D) would you recommend a drug that prolongs or shortens plateau phase of the cardiac muscle cell action potentials for patients with tachycardia? Explain why.

In: Anatomy and Physiology

"Is there a benefit of inflammatory signaling inducing fever, loss of appetite and sleepiness? If so,...

"Is there a benefit of inflammatory signaling inducing fever, loss of appetite and sleepiness? If so, what are those benefits? If not, then why would these occur?"

In: Anatomy and Physiology

1. Discuss the factors that affect blood flow in the vasculature and their relationship to blood...

1. Discuss the factors that affect blood flow in the vasculature and their relationship to blood pressure.

2. Discuss the pulmonary ventilation and gas exchange.

In: Anatomy and Physiology

3. Identify two popular multivitamin formulas and list the ingredients of each. Compare the ingredients with...

3. Identify two popular multivitamin formulas and list the ingredients of each. Compare the ingredients with one another. If they are different, why do you think there is a variance between the two? Are they marketed towards different audiences? And if so, how? Why do you think the manufacturer combined certain vitamins, minerals, and herbs?

In: Anatomy and Physiology

You have a cation that has an equilibrium potential with a positive charge. Where is that...

You have a cation that has an equilibrium potential with a positive charge. Where is that ion more highly concentrated (Intracellular or extracellular)?

How do you know?

If an anion has a higher concentration outside the cell, what will be the charge of its equilibrium potential?

Explain your answer.

In: Anatomy and Physiology

Why is extracellular calcium needed in cardiac muscle contractions, and why is it important in delaying...

Why is extracellular calcium needed in cardiac muscle contractions, and why is it important in delaying repolarization?

In: Anatomy and Physiology

How does GIP and GLP-1 stimulate insulin secretion?

How does GIP and GLP-1 stimulate insulin secretion?

In: Anatomy and Physiology

Describe, in detail, how neurons communicate. Start with a strong EPSP being transmitted, and end with...

Describe, in detail, how neurons communicate. Start with a strong EPSP being transmitted, and end with the next cell receiving an EPSP.  

In: Anatomy and Physiology

Planes and Quadrants Why is it valuable to divide the body into imaginary planes and quadrants?...

Planes and Quadrants

Why is it valuable to divide the body into imaginary planes and quadrants?

This is for medical terminology class.

In: Anatomy and Physiology

Differentiate among the three classes of levers in terms of the relative position of fulcrum, effort,...

  1. Differentiate among the three classes of levers in terms of the relative position of fulcrum, effort, and load, as well as in terms of the relative power and range of motion.

  2. Give examples in the human body of muscles and their associated joints to illustrate each type of lever system.

  3. Define the terms prime mover (or agonist), antagonist, synergist, and fixator.

  4. For a given movement, differentiate specific muscles that function as the prime mover, antagonist, synergist or fixator.

  5. Explain how the name of a muscle can help identify its action, appearance, or location.

  6. Define the terms tension and contraction, with respect to muscles.

  7. Define the term motor unit.

  8. Demonstrate isotonic and isometric contraction and interpret graphs of tension vs. time and muscle length vs. time for each type of contraction.

  9. Describe, in order, the events that occur at the neuromuscular junction that elicit an action potential in the muscle fiber.

  10. Provide specific examples to demonstrate how the muscular system responds to maintain homeostasis in the body

  11. Explain how the muscular system relates to other body systems to maintain homeostasis

In: Anatomy and Physiology

1. What are the two targets of positive feedback from the common pathway in blood clotting?...

1. What are the two targets of positive feedback from the common pathway in blood clotting? _____________ and the _______________ ____________________ .

2. Which connective tissue is about 50% water? ______________

In: Anatomy and Physiology

Describe, in detail, an action potential including which ions open and when, and at what point...

Describe, in detail, an action potential including which ions open and when, and at what point the action potential is generated. Include the various stages of the action potential as well (ex. refractory periods)

In: Anatomy and Physiology

which of the following statements is true? a) Metabotropic receptors allow the passage of ions through...

which of the following statements is true?

a) Metabotropic receptors allow the passage of ions through an opened channel

b) Metabotropic receptors frequently initiate signal transduction cascades

c) Plasma membranes are impermeable to ligands for nuclear receptors, but permeable to ligands that bind receptors in the plasma membrane

e) Plasma membrane receptors usually behave like transcription factors when bound by their ligand

In: Anatomy and Physiology

1) What is a simple way conduction deafness can be simulated? Explain how this simulates conduction...

1) What is a simple way conduction deafness can be simulated? Explain how this simulates conduction deafness. Is there a simple way to simulate nerve deafness? Why or why not?

2) Compare nerve deafness to conduction deafness.

3) In your own words, describe how the procedure for the Rinne's Test differs from the procedure for the Weber's test. What type of a result would you see from each of these tests if an individual had normal hearing?

In: Anatomy and Physiology

*Why was carbon chosen as the atomic backbone of life? *Define a functional group and explain...

*Why was carbon chosen as the atomic backbone of life?

*Define a functional group and explain their importance to life.

*Describe the complete structure, classification and functions of the carbohydrates.

*List and describe in detail the 4 protein structures.

*Define an enzyme and explain how they work and their importance to living things.

*Compare the different types of triglycerides and indicate which are not healthy and those that are healthy. Also, indicate why some are and are not healthy choices.

*List all the macromolecules and describe the monomers of each and how each can be identified through testing.

*List and describe all of the accessory organs of the digestive system and explain how they assist with the process of digestion.

*Explain at least 5 ways in which the small int. is capable of increasing its surface area to perform greater absorption of nutrients.

*Describe in detail the movement of food from the mouth to the anus.

*Compare the similarities and differences between the large intestine and the large intestine.

*Compare the similarities and differences between the wall of the sm. int. and the lg. int.


In: Anatomy and Physiology