Question

In: Anatomy and Physiology

A. Describe the short-term reflex control of blood pressure, including peripheral receptors, neural control centers, and...

A. Describe the short-term reflex control of blood pressure, including peripheral receptors, neural control centers, and peripheral effectors.

B. Discuss the details of the mechanisms of respiratory gas transport and respiratory gas exchange (at the lungs and at the tissues), including locations of events and chemistry.

C. Describe how the events of digestive physiology integrated and coordinated together along the GI tract, giving specific examples of these regulatory mechanisms. What is their functional importance?

D. Describe the strategic goals, events and physiological regulation of the absorptive and post-absorptive metabolic states. Discuss the hormonal and neural mechanisms, and the effector targets.

E. Describe the fluid dynamics occurring across capillary walls of the microvasculature, including the relevant osmotic and hydrostatic forces (Starling forces). Why are the lymphatics an important player in fluid homeostasis?

Solutions

Expert Solution

Short term reflex control of blood pressure

It is controlled by the Baroreceptor and this is the reflex that is short termed

Baroreceptor that are the receptor that will sense a change in the blood pressure and give response by changing the blood pressure. They are also called pressoreceptors.

Situation

  • They are situated in the carotid artery and the aorta

Baroreceptor are innervated by the nerve of herings at carotid artery and by aortic nerve at the aortic baroreceptor.

Mareys reflex

When the blood pressure in human body increase mareys reflex will get activated. They are cardioinhibitory that is they reduce the Heart beat to control blood pressure.

When blood pressure increases it will stimulate he carotid and the aortic Baroreceptor . They will sent signals to the tractus solitaries situated in the medulla oblongata . This signal is sent by the aortic nerve and the herings nerve . This make the tractus solitaries to stimulate the vasodilation area causing the vagal stimulation leading to reduction in heart rate there by blood pressure.  

This is the short term reflex for blood pressure


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