Discuss  in details about the importance  of regulating  blood pressure.

Fill in the gaps in the paragraphs below: Blood pressure can be regulated by the nervous system, in particular the ____________________ nervous system. Initially changes to blood composition and pressure can be detected by ____________________: ____________________for pressure, ____________________for chemical changes, ____________________for temperature, and ____________________for movement. These changes are collected by the medulla oblongata in the brain, which will initiate the ____________________nerve to reduce blood pressure or the ____________________system to increase it. So when blood pressure is high, the ____________________system is used, heart rate ____________________and the systolic blood pressure ____________________. When blood pressure is too low, the ____________________system takes over, heart rate and contractility ____________________, and ____________________occurs in the blood vessels.

The human venous system is diagrammed on this page. Identify all indicated blood vessels.

Explain in detail the steps  Expalin the steps in detail starting from taking blood back to heart and finishing at blood back to the body.

Describe how ultrasound can be used to provide diagnostic images in medicine. Highlight the role of sound for imaging and describe how sound is generated and received. Explain in detail which physical properties of human tissue is exploited by this technique. Describe the ultrasound technique that can be used to monitor blood flow and diagnose diseases that impact blood flow. Explain the physical principles underlying magnetic resonance imaging and provide three examples where it could be used to provided information not accessible with ultrasound

Describe in detail the negative feedback mechanism that regulates blood pressure.  ANSWER SHOULD INCLUDE: Cardiovascular system response to a fall IN BP: Name location of receptors  Afferent pathway  - how signal is sent to CNS ( i.e. branch of ANS involved,  name of neurotransmitters/ hormone) Name and location of control of control centre in CNS Efferent pathway  - how signals is sent to effectors . Name and location of effectors  How effected bring about change in BP LINK to BP equation  Cardiovascular system response to a rise in BP ( AS BOVE )