How do FSH, LH, estradiol and androgens interact with one another to produce accelerated follicular growth in the final stage of follicular development?
Your answer should reference the synthesis of steroid hormone levels as well as changes in the numbers of thecal and granulosa cells.
In: Anatomy and Physiology
Describe the order of events in the activation of steroid hormone receptors. Start with the hormones that are in the circulatory system and end with a change in activity in the nucleus.
In: Anatomy and Physiology
Explain how the release of FSH is regulated by negative feedback. Be sure to include all the hormones that are involved and how they affect the release of FSH.
In: Anatomy and Physiology
1) List the two major types of glands and describe the function of each type of gland.
2)Draw a negative feedback diagram showing the activity of
Parathyroid Hormone
(PTH) on calcium balance in the blood.
Within the diagram, remember to show the
basic components of a feedback
loop!
3). State and explain the processes involved in the expression
of a gene in a DNA
molecule as a protein product.
4) State the role of the following cellular
organelles/parts/regions: (3 points)
a. Rough endoplasmic reticulum
b. Smooth endoplasmic reticulum
c. Chromatin
5. Identify the following molecules. For a, name the reaction
links molecules of this type
together? For b, name the
chemical the molecule is derived from. (4 points)
a. b.
6. List two ways that cardiac muscle differs from
skeletal muscle. (2 points)
7. Explain the principle of osmosis. (2
points)
In: Anatomy and Physiology
Directions: For each of the following exercises write the type of contraction (concentric, eccentric, or isometric) occurring in each muscle group (quadriceps and hamstrings). If no contraction occurs, write “none.” In some instances you may have more than one type of contraction in the same muscle groups throughout various portions of the exercises. If so, list them in the order of occurrence.
Exercise |
Quadriceps |
Hamstrings |
a. Lie prone with your knee in full extension. |
||
1.) Maintain your knee in full extension. |
||
2.)Slowly flex your knee maximally. |
||
3.) Maintain your knee in full flexion. |
||
4.)From the fully flexed position, extend your knee fully but stop immediately before reaching maximal extension. |
||
5.) From the fully flexed position, slowly extend your knee fully. |
||
b. Begin sitting on the edge of a table with your knee in full extension. |
||
1.) Maintain your knee in full extension. |
||
2.) Slowly flex your knee maximally. |
||
3.) Maintain your knee in full flexion. |
||
4.) Maintain your knee at approximately 90 degrees of flexion. |
||
5.) From the fully flexed position, slowly extend your knee fully. |
||
c. Stand on one leg and move the other knee as directed. |
1.) Slowly flex your knee maximally. |
||
2.) Maintain your knee in the fully flexed position. |
||
3.) From the fully flexed position, slowly extend your knee fully. |
In: Anatomy and Physiology
Explain what effect a lack of functional androgen receptors would have on the development of the reproductive system of a chromosomally XY fetus.
Assume sry is present. Your answer should address the development of the gonads, internal reproductive system and genitalia.
In: Anatomy and Physiology
Food |
Type |
Tofu |
|
Banana |
|
Butter |
|
Pretzels |
|
Olives |
|
Chicken |
|
Cheerios |
|
Coconut |
|
Eggs |
In: Anatomy and Physiology
Discuss homeostasis within the context of positive and negative feedback. What type of feedback is predominantly used? Why? Be able to give examples of both types of feedback.
In: Anatomy and Physiology
BACKGROUND INFORMATION:
Vinnie is a professional road cyclist participating in the 2020 Giro d’Italia, a three-week race nearly 3,600 km in distance with some stages exceeding altitudes of 2,700 m above sea level (i.e., Stelvio Pass, Italy). As the newly hired head of the high-performance team, it is your responsibility to manage his preparation for the event. You must demonstrate to your team a fundamental understanding of physiology, the chronic adaptations expected from his training, and methods that could be implemented to improve the likelihood of success.
QUESTION:
Your first job was to schedule a VO2max test for Vinnie to examine his aerobic fitness. After repeating the assessment several weeks later after an intensive training block, you notice that VO2max has dropped, but there has been an increase in VT2. Please discuss why VO2max decreased and what impact both changes will have on performance?
In: Anatomy and Physiology
What is the effect of low progesterone levels in females who are trying to concieve
In: Anatomy and Physiology
2.What are hormones?
3.Most hormones circulate in blood and come into contact with essentially all cells. However, a specific hormone usually affects only a limited number of cells called _____________________________which contain receptors for that hormone. When hormones bind to receptors, it triggers a cascade of reactions within the cell that affects function.4.Endocrine glands secrete hormones directly into the bloodstream while exocrine glands release secretions through ducts into cavities or body surfaces. Some endocrine glands have other functions beyond hormone production and secretion. These organs are called mixed glands, because they have both endocrine and exocrine functions. For example:In addition to hormone production, the pancreas secretes digestive enzymes into the small intestines. Consider the other endocrine glands and list glands that would be considered mixed based on the above criteria. __________________________
5.Richard has symptoms of excessive hormone production of the parathyroid gland. The doctor is certain there is a tumor on the gland. Yet, when surgery was performed on his neck, the surgeon could not find the parathyroid gland at all. Where should the surgeon look to find the tumor on the parathyroid gland? ______________________________________________
In: Anatomy and Physiology
Inflammatory chemicals cause arterioles to ________________ and increased capillary ___________________________. The group of 20 plasma proteins that are part of the 2nd and 3rd lines of defense is called _________________________ and it assists in destroying foreign substances. ___________________ are specialized lymphatic vessels that absorb fat. The ______________, a primary lymphoid organ, is the site for differentiation of lymphocytes into mature T cells. It ___________ as we age. In humoral immunity, specific B cells called ______________ cells secrete ______________, which bind to antigens. ____________ immunity is directed against pathogens in the extracellular fluid. This immunity involves ____ lymphocytes. ______________ immunity is directed against pathogens within the cells. This immunity involves ____ lymphocytes. NK cells kill like ______________ T cells; direct contact with a target cell causes it to undergo ______________, a form of cellular suicide. ___________________ occurs in the arm after axillary lymph node removal in a mastectomy.
In: Anatomy and Physiology
In 200 words or more, describe the similarities and differences between neurotransmitters and hormones.
In: Anatomy and Physiology
_________________ lymph nodes are located in the arm pit.
_________________ lymph nodes are located in the neck.
_________________ lymph nodes are located in the groin.
All lymph vessels are eventually going to empty into the __________ lymphatic duct and the ___________________ duct.
The thoracic duct begins at the sac called ______________________ (two words)
The nonspecific defense system is called ___________________________ immunity.
The specific defense system is called ______________________________ immunity.
Skin and mucous membranes are part of the _______________________ line of defense.
HCl in the stomach is part of the _______________________ line of defense
Inflammation and fever are part of the _____________________line of defense
In: Anatomy and Physiology