Description
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Explanation & Answer
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1. Breathing rate increases to provide the body (exercising muscles) with oxygen at a higher rate.
Heart rate increases to deliver the oxygen (and glucose) to the respiring muscles more efficiently.
The heart, lungs and circulatory system working together make up the cardiovascular system.
Activity 1
N-nostril
N-nasal cavity.
P-pharynx
E-epiglottis
L- larynx
T-trachea
P-pulmonary vein
p-pulmonary artery.
B- bronchioles
D-diaphragm.
Description/Function.
1. Air passage and filtering dust and other particles.
2. keep your nose moist by making mucus so you won't get nosebleeds from a dry nose. There are also
little hairs that help filter the air you breathe in, blocking dirt and dust from getting into your lungs.
3. passageway that extends from the base of the skull to the level of the sixth cervical vertebra. It
serves both the respiratory and digestive systems by receiving air from the nasal cavity and air,
food, and water from the oral cavity
4. prevents food and drink from entering your windpipe
5. protect the lower airways, facilitates respiration, and plays a key role in phonation.
6. To protect the airway from choking on material in the throat. To regulate the flow of air into our
lungs. The production of sounds used for speech.
7. The trachea serves as passage for air, moistens and warms it while it passes into the lungs, and
protects the respiratory surface from an accumulation of foreign particles
8. distribute air to the lungs.
9. responsible for the primary function of the lungs, which is exchanging carbon dioxide and oxygen.
10. Gaseous exchange.
11. Diaphragm-separates the abdomen from the chest and This creates a vacuum effect that pulls air
into the lungs. When you exhale, the diaphragm relaxes and the air is pushed out of lungs
12. Pulmonary Artery- From heart to lungs
Color code-blue
Deoxygenated blood.
13 lungs to heart.
Red
Oxygenated blood.
Activity 2.
Nose- Nasal cavity- pharynx-epiglottis.
Larynx-trachea-primary bronchus.
Secondary bronchus-Tertiary Bronchus-Bronchioles-Alveolus
Activity 3.
Smooth.
Air.
Single layer of thin and flat cells.
Activity 4. Position of Pulmonary Capillaries and alveolar sacs.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Air
Blood
Gaseous exchange.
Oxygen and carbon dioxide. Oxygen comes from the alveoli getting into the blood while carbon
dioxide comes from the blood and gets out through the alveoli. Oxygen is exchanged with carbon
dioxide from the body tissues.
Pulmonary capillaries.
Increasing surface area for gaseous exchange.
Gaseous exchange will not occur hence cells and tissues will suffocate leading to death.
Arteries.
Veins.
Activity 5.
4.72bpm
Activity 6
1. Over time, with chronic cardio training, our resting heart rate drops because each beat delivers a
bigger burst of blood, and fewer beats are needed. This takes work off your heart and is why cardio
exercise is recommended for heart health.
2. When you exercise and your muscles work harder, your body uses more oxygen and produces more
carbon dioxide. To cope with this extra demand, your breathing has to increase from about 15 times a
minute when you are resting and up to about 60 times a minute during exercise
Hypothesis 1: Alternative hypothesis. Exercises increase the rate of breathing and heart rate
Hypothesis 2: Null hypothesis. Exercises will not increase breathing rate and heart rate.
Attached. Please let me know if you have any questions or need revisions.
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Lab 12: Respiratory System
Materials needed: Heart and lung model, Trachea model, Normal lung Slide, Trachea cross
section slide, Pulse Oximeter
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OBJECTIVES:
1.
2.
3.
4.
Identify structures of the respiratory system.
Determine direction of blood flow and air flow in tubes within the lung.
Examine the histology of lung and trachea.
Measure lung volumes and capacities – Spirometry.
Intr...