Questions
You are talking with a friend who has recently started an exercise regimen, and they comment...

You are talking with a friend who has recently started an exercise regimen, and they comment that they are planning to quit because they experience muscle soreness following their workouts. In your communication assignment for this week explain why this occurs. You should focus on the molecular mechanism of muscle contraction and how muscles become fatigued. You should also discuss the ways muscles adapt to changing activity levels at the molecular level as you encourage them to increase their fitness level.

In: Anatomy and Physiology

If humans keep evolving, what changes could you see in the nervous system?

If humans keep evolving, what changes could you see in the nervous system?

In: Anatomy and Physiology

Describe Brown-Séquard syndrome and the sensory and motor losses that accompany it. In responses, describe the...

Describe Brown-Séquard syndrome and the sensory and motor losses that accompany it. In responses, describe the basis for these losses.

In: Anatomy and Physiology

Consider a generic synapse.  How are neurotransmitters released and how do they pass information.  Also, how is the...

  1. Consider a generic synapse.  How are neurotransmitters released and how do they pass information.  Also, how is the signal “shut off”?
  2. Why is myelination adaptive considering long axons ie from a motor neuron in the cortex?

In: Anatomy and Physiology

What muscles/joints are used in the five stages of a burpee?

What muscles/joints are used in the five stages of a burpee?

In: Anatomy and Physiology

Matt is sitting in a chair at a table anxiously waiting for his Chinese takeout to...

Matt is sitting in a chair at a table anxiously waiting for his Chinese takeout to arrive. The doorbell rings and Matt moves from his chair to go to the door to meet the delivery person. In the process of moving from his chair to ultimately sitting back in his chair and eating his sweet and sour chicken with rice, he has to progress through a series of motions. First he must stand upright from his sitting position in the chair. He turns around 180 degrees to face the door. Then he jumps over his couch, takes several steps forward, grabs the door knob, turns it 180 degrees clockwise and pulls open the door. Once he has the food in hand, he turns back around, walks back to his chair and sits down. He divides the food into two bowls for both Maria and himself. He grasps the chicken and rice with a set of chopsticks, raises it to his mouth, takes a bite, which he then chews and swallows.

All the actions that Matt made to move from the chair to the door and back involved the contraction of voluntary skeletal muscles that are each innervated by a specific nerve and each of which cross a specific joint or set of joints to produce a specific action. The series of above actions took Matt less than 3 minutes to complete.

Describe in order and in detail the following movements.

  1. Stand up from a sitting position
  2. While standing upright, turn around 180 degrees to face opposite direction
  3. Jumping over the couch and taking several steps forward.
  4. Reach forward and grasp a door knob.
  5. Turn a door knob 180 degrees clockwise
  6. Sit down in a chair.
  7. Grasp the chopsticks.
  8. Raise the chicken and rice from a bowl to mouth.
  9. Bite, chew and then swallow a portion of the food.

Break down each of the above actions into an ordered series of joint movements. Actually do the actions yourself and note which joints move in what order.  What muscles produces these movements?

In: Anatomy and Physiology

Describe the interplay between: the juxtaglomerular apparatus, the renin-angiostensin pathway, aldosterone, and the distal convulated tubules...

Describe the interplay between: the juxtaglomerular apparatus, the renin-angiostensin pathway, aldosterone, and the distal convulated tubules of the kidney

In: Anatomy and Physiology

Explain how hepatitis delta virus regulates expression of the two forms of the delta antigen (understand...

Explain how hepatitis delta virus regulates expression of the two forms of the delta antigen (understand the process of genome editing).

In: Anatomy and Physiology

3. Explain the process of how the nervous system can cause the release of a hormone...

3. Explain the process of how the nervous system can cause the release of a hormone and provide an example of the process.

In: Anatomy and Physiology

Describe how gas exchange (O2 & CO2) takes place in the tissues during internal respiration.

Describe how gas exchange (O2 & CO2) takes place in the tissues during internal respiration.

In: Anatomy and Physiology

Briefly describe the pathophysiology of Barrett’s esophagus.

Briefly describe the pathophysiology of Barrett’s esophagus.

In: Anatomy and Physiology

Identify the components in a muscle unit and explain how they are recruited during a contraction...

Identify the components in a muscle unit and explain how they are recruited during a contraction and how muscle tension and fatigue are generated in skeletal muscle.

In: Anatomy and Physiology

Discuss one specific subdivision of the nervous system and provide examples of its general locations.

Discuss one specific subdivision of the nervous system and provide examples of its general locations.

In: Anatomy and Physiology

which one of the forces driving U.S. healthcare is the most influential and hiw does it...

which one of the forces driving U.S. healthcare is the most influential and hiw does it drive healthcare

In: Anatomy and Physiology

Describe how arterial pCO2 changes during a) hyperventilation, and b) breathing into a paper bag. How...

Describe how arterial pCO2 changes during a) hyperventilation, and b) breathing into a paper bag. How would you expect your body to compensate for these changes in pCO2 through breathing afterward?

In: Anatomy and Physiology