P5 – Describe the Structure and Function of the Cardiovascular System Changes in Stroke Volume Stroke volume is the amount of blood pumped out the left ventricle‚ every beat your heart makes. It can differ from your resting heart beat and your heart beat when exercising. Normally‚ when exercising‚ your heart rate increases meaning the stroke volume also increases. The blood pumped by the left ventricle is oxygenated‚ and will deliver oxygen to the muscle. The more blood injected in a heartbeat means
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he Respiratory System Fig 4. Horse’s respiratory system The functions of the respiratory system are to provide the body with oxygen‚ to remove carbon dioxide from the body‚ to control temperature (breathing out warm air and breathing in cool air)‚ to eliminate water‚ to communicate (Voice production) and sensory input (Smell/ touch- nose hairs). The respiratory system consists of the nostrils‚ pharynx‚ larynx‚ Nostrils The nostrils expand to allow air to enter the respiratory system‚ hairs within
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The human respiratory system is adapted to allow air to pass in and out of the body and also for efficient gas exchange to occur. The respiratory system includes air passages‚ pulmonary vessels‚ the lungs‚ and breathing muscles. Most of the organs of the respiratory system help to distribute air‚ but only the tiny alveoli and the alveolar ducts are responsible for the gas exchange. Mouth - The mouth is the secondary exterior opening for the respiratory system. Most commonly‚ the majority of respiration
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Air enters the nose by passing through the external nares or nostrils. The mucosa lining the nasal cavity‚ called the respiratory mucosa‚ warms the air as it flows pa Respiratory physiology The major function of the respiratory system is to supply the body with oxygen and to dispose of carbon dioxide. To do this‚ at least four distinct events‚ collectively called respiration‚ must occur: 1. Pulmonary ventilation Air must move into and out of the lungs so that the gases in
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NAME: _ MAP Instructions: Select “Study Area (myA&P) Select “Interactive Physiology” (left tab) Select “Chapter 19: Cardiovascular System – Factors that Affect Blood Pressure” Click “Topic‚” watch the tutorial‚ and then answer the following questions. The Cardiovascular System: Factors That Affect Blood Pressure 1. What are the three main factors that influence total peripheral resistance (TPR)? a. Turbulence b. Vascular Resistance c. A change in blood viscosity 2.
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NAME LAB TIME/DATE R E V I E W S H E E T E X E R C I S E Print Form 36 Anatomy of the Respiratory System Upper and Lower Respiratory System Structures 1. Complete the labeling of the diagram of the upper respiratory structures (sagittal section). Frontal sinus Cribriform plate of ethmoid bone Superior nasal chonchea middle inferior external nares Hard palate epiglottis Tongue Lingual tonsil tongue Hyoid bone Thyroid cartilage of larynx
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TUTORIAL 2: RESPIRATORY SYSTEM OBJECTIVE QUESTION 1) High-flying birds are able to obtain enough oxygen even when the air is very thin because A) they have more efficient lungs than other vertebrates. B) they have reduced amounts of hemoglobin in their blood. C) their mitochondria are more efficient than those of other vertebrates. D) their heart can increase or decrease in size as altitude changes. E) they are able to store oxygen in oxygen chambers within muscle cells. 2) If you were to move from
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Case Study for Respiratory Disorders #2 Scenario A.W.‚ a 52-year-old woman disabled from severe emphysema‚ was walking at a mall when she suddenly grabbed her right side and gasped‚ “Oh‚ something just popped.” A.W. whispered to her walking companion‚ “I can’t get any air.” Her companion yelled for someone to call 911 and helped her to the nearest bench. By the time the rescue unit arrived‚ A.W. was stuporous and in severe respiratory distress. She was intubated‚ an IV of lactated Ringer’s (LR)
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function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. When we breathe‚ we inhale oxygen and exhale carbon dioxide. This exchange of gases is the respiratory system’s means of getting oxygen to the blood. The regulation of breathing is the result of a complex interaction involving a system of sensors‚ a respiratory control center‚ and an effector system to carry out its
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Ch 22: The Respiratory System 5-2 Objectives Functional Anatomy of the Respiratory System 1. Identify the organs forming the respiratory passageway(s) in descending order until the alveoli are reached. 2. Describe the location‚ structure‚ and function of each of the following: nose‚ paranasal sinuses‚ pharynx‚ and larynx. 3. List and describe several protective mechanisms of the respiratory system. 4. Distinguish between conducting and respiratory zone structures. 5
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