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Maria Cruz
Anatomy Wk 6-12
| Question | Answer |
|---|---|
| What are the functions of the CNS? | The CNS is responsible for processing information, coordinating body functions, and controlling thoughts, emotions, and senses |
| What role do enzymes play in digestion? | Enzymes are biological catalysts that speed up chemical reactions, including those involved in breaking down food. |
| What are the three main functions of the digestive system? | The three main functions are digestion (breaking down food), absorption (taking in nutrients), and elimination (removing undigested waste). |
| Where does gas exchange take place in the respiratory system? | Gas exchange occurs in the alveoli, where thin-walled air sacs are in close contact with capillaries (tiny blood vessels). |
| How does the respiratory system work with the cardiovascular system? | The respiratory system provides the oxygen that the cardiovascular system transports throughout the body, and the cardiovascular system removes the carbon dioxide produced by cells, which is then exhaled by the respiratory system. |
| How does the respiratory system help with speech? | Air moving through the vocal cords in the larynx creates sounds, which are then shaped by the mouth, tongue, and other structures to produce speech. |
| What are the two main divisions of the nervous system? | The two main divisions are the central nervous system (CNS) (brain and spinal cord) and the peripheral nervous system (PNS) (nerves and ganglia |
| How does the nervous system respond to stress? | The hypothalamus activates the sympathetic nervous system, leading to the release of hormones like cortisol and adrenaline, preparing the body for a "fight-or-flight" response. |
| What is the cardiac cycle? | the series of events that occur during one complete heartbeat. It involves the coordinated contraction and relaxation of the heart's chambers (atria and ventricles) to pump blood throughout the body |
| What is the role of the diaphragm in breathing? | The diaphragm is a muscle that contracts and relaxes, causing the chest cavity to expand and contract, facilitating breathing |