What is the term used to describe the volume in which air is exhaled and inhaled during normal respiration? Based on what you have learned from your experiments, what would be an average value for this volume?

What is the term used to describe the volume in which air is exhaled and inhaled during normal respiration? Based on what you have learned from your experiments, what would be an average value for this volume?

What term is used for the volume of air inhaled during normal respiration? Based on what you have learned from your experiments, what would be an average value to measure this volume?

Tidal Volume (TV) is a measure of the air that has been inhaled and exhaled during a normal breathing cycle.

What is the volume of air present in the lungs after a forceful expiration?

Rio/ Marieb Chap 8 Vocab, Study guide, Questions

Question Answer
Volume of air present in the lungs after a forceful expiration= residual volume (~1100 ml)
Volume of air that can be expired forcibly after a normal expiration= expiratory reserve (~1200 ml)

What would happen if an opening were made into the chest cavity as with a puncture wound?

What would happen if a hole were made in the chest cavity like a puncture wound? The chest is sealed and air is pulled out (chest tube).

What other muscles do you see contributing to depression of the rib cage?

Intermediate back muscles – work to elevate and depress the rib cage. This category includes two main muscles: the serratus anterior superior and the serratus inferior.

Which muscles are involved in forced expiration?

Forced expiration is when the lungs are forced to expend more air than usual. The abdominal muscles contract and push the diaphragm upwards. Contraction of the inner intercostal muscles pulls the ribs down.

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What nerves are responsible for breathing?

The major nerves that control respiration are the phrenic, vagus and posterior thoracic. To perform higher functions such as voice control, voluntary respiration is required.

Why do I feel like not enough air?

Anxiety. Anxiety can cause your muscles to tighten when you are stressed or anxious. This causes you to breathe slower than usual. This can cause you to feel as though you aren’t getting enough air.

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