Adrenal medulla:
The medulla of adrenal gland varies both in morphology and physiology from the cortex segment. Both cortex and medulla are derived separately and from totally distinct tissues in the embryo. The adrenal medulla in adult humans and other mammals is invested intimately by the cortical tissue. The cells of the adrenal medulla are big ovoid and columnar in type and are grouped into clumps about the blood vessels. The hormones generated by adrenal medulla are:
1. Adrenalin or epinephrine and 2. Nor adrenalin or nor epinephrine. The two hormones belong to an assembly termed as catecholamines. The different physiological and biochemical actions of adrenalin or epinephrine are shown below:
A. Adrenalin stimulates restriction of blood vessels supplying the intestine, viscera, kidneys, and skin and causes dilation of blood vessels providing skeletal and heart muscle.
B. It raises the rate, amplitude and frequency of heart beat.
C. It cause relaxation of the smooth muscles of the digestive tract and provides peristalsis to a halt.
D. It causes relaxation of the dilation of the pupil, bronchi, closure of sphincters and raises sweating.E. It causes tightening of muscles related with hair follicles and makes the hair “stand on end” and cause goose flesh.
F. It accelerates respiration and stimulates the mental awareness.
G. It stimulates the breakdown of glycogen to glucose, thus raising oxygen utilization and heat production.
H. Biochemically it discharges the free fatty acids and raises blood glucose level.
I. Adrenalin organizes an individual during emergency or stress conditions.
Therefore it is termed as fight, flight and fright hormone.
Action of nor adrenalin or nor epinephrine:
Nor adrenalin has some effects alike to that of adrenalin. For illustration, both the hormones dilate the coronary vessels. Though, nor epinephrine cause vaso constriction in most of the organs other than heart. It raises both the systolic and diastolic blood pressures. It exerts a weakly inhibitory action on the contractile activity of smooth muscle in the gastro intestinal tract. Although, it does not relax the smooth musculature of the pulmonary bronchioles. Nor epinephrine exerts very small effect on carbohydrate metabolism and oxygen consumption.
Latest technology based Biology Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Adrenal medulla homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Adrenal medulla, project ideas and tutorials. We provide email based Adrenal medulla homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Adrenal medulla. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Biology homework help and assignment help services. They use their experience, as they have solved thousands of the Biology assignments, which may help you to solve your complex issues of Adrenal medulla. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
tutorsglobe.com gaseous exchange in the alveoli assignment help-homework help by online respiration tutors
theory and lecture notes of models of computation all along with the key concepts of models of computation, fundamental goals, models of computation-purpose and types. tutorsglobe offers homework help, assignment help and tutor’s assistance on models of computation.
Theory and lecture notes of Market signaling all along with the key concepts of market signaling, Education as a signal, Educational Signaling Game, Economics of information. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Market signaling.
bogged down with tough academic task? avail oscillation and waves assignment help and score well at competitive prices!
Theory and lecture notes of Price Discrimination all along with the key concepts of Non-linear Pricing, FOCs of profit maximization, 1st-degree and 2nd-degree Price Discriminations, Price Discrimination using hurdles, Quality Discrimination. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Price Discrimination.
tutorsglobe.com cephalin assignment help-homework help by online lipid metabolism tutors
Power Systems tutorial all along with the key concepts of Electrical energy, Electrical power systems, Alternating Current, Direct current, Direct Current Power Systems, Disadvantages of Direct Current
Theory and lecture notes of Expected Future Changes in the Macroeconomy all along with the key concepts of expected future changes in the macroeconomy, History of Macroeconomic Fluctuations. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Expected Future Changes in the Macroeconomy.
tutorsglobe.com slutsky equation assignment help-homework help by online income and substitution effects tutors
The meaning of ‘de-greasing’ is that the removal of dirty grease and oily matter through the chemical solvent that is very identical in action to the well-known ‘dry cleaning’ of clothes.
theory and lecture notes of concept of programming languages all along with the key concepts of programming languages, models of computation and undecidability. tutorsglobe offers homework help, assignment help and tutor’s assistance on concept of programming languages.
tutorsglobe.com cardiac cycle assignment help-homework help by online circulation tutors
while hot water is needed just at one service point, this type is employed. it holds water of low pressure and therefore is termed as non-pressure type.
www.tutorsglobe.com offers representation format of an object homework help, assignment help, case study, writing homework help, online tutoring assistance by computer science tutors.
Condensation Step-growth Polymerization Reactions tutorial all along with the key concepts of Condensation polymers, polyurethane, Dacron, condensation reaction
1942511
Questions Asked
3689
Tutors
1466835
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!