subject. Histology:

1-histological structure of processes involved in the production of mature sperm and ovum?

2- Role of different hormones of the production of mature sperm and ovum?

Criteria this question it has Answer creative and attractive format with photographs and not less than 5 references and completely related to the topic

Minimum 1000 to 1300 words

I wont to answer as histology.

One of the main concepts you will see repeated in this course is: form allows for function (the principle of complementarity of structure and function). Using your textbook or another reliable source, describe the characteristics of a cardiac muscle cell found in the heart and a simple columnar cell found within the small intestine. Contrast these two types of cells in terms of their structure and the organelles found within them. Finally, explain how the structure of each type of cell allows it to perform its function(s).

PLEASE CITE RELIABLE SOURCES

47) You will find a gliding movement in a(n) _________________ joint.

A) intertarsal            B) interphalangeal            C) atlantoaxial            D) proximal radioulnar

49) The frontal, parietal, occipital, temporal, and clavicle bones are formed by _____________ ossification.

A) endochondral            B) temporal            C) hypertrophic            D) intramembranous

50) The ______________ zone is found between the epiphyseal plate and epiphysis of a long bone.

A) hypertrophic            B) proliferation            C) resting            D) ossification

80) Which of the following is a true statement?

A) The head of the humerus articulates with the acromion process.

B) The greater tubercle of the humerus articulates at the coracoid process of the scapula.

C) The rotator cuff is responsible for the flexible extensions at the elbow joint.

D) The ulna and the radius articulate at both the proximal and distal ends.

82) Which ligament restricts side-to-side movements at the elbow?

A) ulnar collateral ligament             B) anular ligament             C) acetabular labrum             D) lateral ligament

Briefly outline the neuroendocrine pathways mediating “homeostatic” control of body weight, with particular emphasis on the neural and hormonal mechanisms by which the body signals metabolic cues to the brain.

Multiple peripheral signals provide information to the CNS about food intake and other metabolic processes.  Describe these different signals, and how they are integrated within the hypothalamus to provide overall regulation of body weight.

Contrast the neural pathways mediating “hedonic” drive for food intake with the “homeostatic” neuroendocrine pathways maintaining stable body weight.  How do these pathways interact?

Lactogens are an important modulator of maternal behaviour. Describe the secretion of lactogens at time relevant to maternal behaviour and how these act on the neural circuitry underlying maternal behaviour.

A 43-year-old woman presented to her family physician with a two-year history of fatigue, diarrhea, and constant dull abdominal discomfort. Stools were described as normal in frequency and intermittently loose in consistency. The patient, a marine biologist with an extensive travel history, noticed that her symptoms began after a busy year of fieldwork in Iceland, Denmark, and the Arctic, during which she began regularly consuming raw sushi and sashimi. Serum vitamin B12 was 157 pmol/ L, compared to a level of 435 pmol/ L two years ago.

Questions:

12.Which organism can cause this type of disease onset? Describe how a person may be infected by this organism?

13.Explain how the decrease of Vitamin B12 is related histologically.

14.How is the vitamin B12 deficiency and macrocytosis related?

A 62-year-old alcoholic presents to the emergency room with 8 hours of severe abdominal pain and vomiting. Physical examination discloses exquisite abdominal tenderness. Serum levels of amylase and lipase are elevated.

QUESTIONS:

These laboratory data indicate that this patient has suffered injury to which of the following internal organs?       

.What would be the likely diagnosis of the patient?

The organ being describe function as both an exocrine and endocrine gland. The endocrine function is located in clusters found within the organ and is called as what?

[ECF] of Na⁺ = 145 mM, and K⁺ = 4.6 mM

[ICF] of Na⁺ = 9 mM and K⁺ = 155 mM

1. How much more permeable (answer will be a whole number followed by the word "times") would the above cell be to potassium than sodium if the measured resting membrane potential was -61 mV?      

2. Identify the analogous hormone in the thyroid axis to ACTH in the adrenal axis.

3. Identify the protein that clears the 2nd messenger produced by the activation of a beta 1 adrenergic receptor.

Describe and name the arterial and venous coronary circulation of the heart

1. What are three ways in which vesicles in a cell are moved using directed motion.

2. What is the average size of a myosin motor step along an actin filament in nm)? What is the average size of a kinesin motor step along / (across) a tubulin dimer (in nm)?

3. Write the definition of the rate of ATP hydrolyzation Rin your own words. How would you calculate the rate of ATP hydrolyzation, you know the step size of the motor proteins and the average vesicle velocity. Write the equation here.

4.Use the equation from Question 3 and your answer to Question 2 to calculate the rate of ATP hydrolyzation, R. For step size, assume the vesicle is being transported by a myosin motor protein. (Hint: make sure you convert values to the appropriate units) The units for rate of ATP hydrolysis are s^-1

Discussion Question:

1.  Matt talks a lot about "Fair Market Rent" and how realtors and landlords make more money in poor neighborhoods than in nicer ones.  How is it possible to make more profit from renting run-down properties to poor people than from renting luxury apartments to wealthy people? What does this tell us about the relationship between wealth and poverty?

Topic 9: Oxygen-hemoglobin dissociation curve

Define what the oxygen hemoglobin dissociation curve is and describe why it is physiologically important. explain the significance of the sigmoidal shape, including the physiological significance of the plateau and step portions, and the relationship between oxygen loading/unloading with changes to po2

Give an example of a situation/condition that would result in a right shift of the oxygen hemoglobin dissociation curve. explain what causes the shift and relate it to oxygen binding affinity, loading-unloading of oxygen, and changes in po2