How does the respiratory system work?

How does the respiratory system work?

Answer: Inspired air rich in oxygen enters the body through the nostrils or mouth. It passes through the pharynx and larynx, or voice box, and into the trachea. Air then enters each bronchus, which branch into bronchioles, and finally into the alveoli, or air sacs of the lungs. The lungs are housed in the thoracic cavity that is bound on the bottom by a thin layer of muscle, the diaphragm. Each lunch is covered by a very thin pleual membrane. In the alveoli, carbon dioxide is exchanged to oxygen.

What is another name for the larynx?

What is another name for the larynx?

Answer: The voicebox

What is another name for the pharynx?

What is another name for the pharynx?

Answer: The wind pipe

What kind of cartilage is in the trachea and why?

What kind of cartilage is in the trachea and why?

Answer: C ring shaped cartilage so that it can expand when we swallow something big

What is flora? Feces? Flatulence? Defecation?

What is flora? Feces? Flatulence? Defecation?

Answer:

-Flora: Good bacteria in large intestine
-Feces: Poop (contains dead red blood cells, indigestible food, bile, mucous, electrolytes, and water)
-Flatulence: Fart (smells bad because hydrogen sulfide)
-Defecation: Pooping (excretion of waste)

What is the large intestine also called? What is the function of the large intestine? How does it compare in size to the small intestine?

What is the large intestine also called? What is the function of the large intestine? How does it compare in size to the small intestine?

Answer:

-Large intestine is also called the colon
-Function of the large intestine is to store feces
-Large intestine is 5ft long and 2in diameter and small intestine is 20ft long and 1in diameter

What and where is the appendix? The cecum? The ileocecal valve?

What and where is the appendix? The cecum? The ileocecal valve?

Answer:

-The appendix is
-The cecum is
-The ileocecal valve is

What does the pancreas look like? What is the function of the pancreas?

What does the pancreas look like? What is the function of the pancreas?

Answer:

-The pancreas looks like a feather
-The function of the pancreas is to secrete pancreatic juices and regulate blood sugar

Where is the gallbladder? When and where does it release bile?

Where is the gallbladder? When and where does it release bile?

Answer:

-The gallbladder is under the liver
-It releases bile in the small intestine when high fat meals are at.

What is the function of the liver? Where is the liver located? What is important about its size?

What is the function of the liver? Where is the liver located? What is important about its size?

Answer:

-The function of the liver is
-It is located
-Its size is important because

What is the primary function of the small intestine? What is the length and width of the small intestine? What are the sections of the small intestine?

What is the primary function of the small intestine? What is the length and width of the small intestine? What are the sections of the small intestine?

Answer:

-The primary function of the small intestine is absorption
-The small intestine is 20ft long and 1in in diameter
-The sections of the small intestine in order are the duodenum, jejunum, and ileum.

Where are gastric glands located? What is rugae? How long does food take to leave the stomach?

Where are gastric glands located? What is rugae? How long does food take to leave the stomach?

Answer:

-Gastric glands are located in the stomach
-Rugae is the folds of stomach lining so it can expand
-Food takes 2-4 hours to leave the stomach

What is the esophagus? What happens to food here?

What is the esophagus? What happens to food here?

Answer:

-The esophagus is
-In the esophagus, food

How many baby teeth do we have? Permanent teeth? What is the purpose of different shaped teeth?

How many baby teeth do we have? Permanent teeth? What is the purpose of different shaped teeth?

Answer:

-20 baby teeth
-32 permanent teeth
-The purpose of having different shaped teeth is because they each serve a specfic function: Canine teeth tear, molar teeth grind, and inscisor teeth bite

Name and locate the 3 salivary glands. What is the function of saliva?

Name and locate the 3 salivary glands. What is the function of saliva?

Answer:

-Parotid salivary gland--in cheeks
-Sublingual gland--under tongue
-Submandible gland--in jaw
The function of saliva is

What is peristalsis and where does it occur?

What is peristalsis and where does it occur?

Answer: Peristalsis is a wavelike motion propelling food down the tube, it starts at the esophagus and ends at the anus

What are the main organs of digestion? What are the accessory organs of digestion? What is the difference?

What are the main organs of digestion? What are the accessory organs of digestion? What is the difference?

Answer:

-The main organs of digestion are
-Accessory organs of digestion are
-The difference is

What is the function of the digestive system?

What is the function of the digestive system?

Answer: The function of the digestive system is to mechanically and chemically breakdown and absorb food and to get rid of what you can't use.

What is a spirometer? Describe all lung capacities. (tidal volume, inspiratory reserve, expiratory reserve, vital capacity, residual volume, and total lung capacity)

What is a spirometer? Describe all lung capacities. (tidal volume, inspiratory reserve, expiratory reserve, vital capacity, residual volume, and total lung capacity)

Answer:


A spirometer measures your breathing.

-Tidal Volume: Normal breathing
-Inspiratory Reserve: Big inhale
-Expiratory Reserve: Big exhale
-Vital Capacity: Tidal + Inspiratory reserve + expiratory reserve all combined
-Residual Volume: Air that cant leave lungs until last breath of life
-Total Lung Capacity: Residual volume + vital capacity

What controls our breathing? What factors affect our breathing?

What controls our breathing? What factors affect our breathing?

Answer:

-Our breathing is controlled by our brain stem.
-Factors that affect breathing are age, weight, health, elastic recoil, ect.

Which muscles/structures are assisting normal breathing? When you force inhale? When you force exhale?

Which muscles/structures are assisting normal breathing? When you force inhale? When you force exhale?

Answer:


-Normal breathing is assisted by the intercostal muscles
-Forced inhale is assisted by pectoral muscles and sternocleidomastoid muscles
-Forced exhale is assisted by intercostal muscles and abdominal muscles

What is the purpose of the diaphragm? How does it work? What controls it? /What does atmospheric pressure have to do with it?

What is the purpose of the diaphragm? How does it work? What controls it? /What does atmospheric pressure have to do with it?

Answer:

-The purpose of the diaphragm is to assist your breathing.
-It works by the dome shape flattening when it contracts to create suction which gives room for air to fill in as you inhale.
-It is controlled by your phrenic nerve.
-Atmospheric pressure

What are the 4 sinuses? How are they named?

What are the 4 sinuses? How are they named?

Answer:

1.) Frontal sinus
2.)Maxillary sinus
3.) Sphenoid sinus
4.)Ethmoid sinus
The sinuses are named after the bones they are located by.

What is the glottis and epiglottis?

What is the glottis and epiglottis?

Answer:

-Glottis is the triangular opening into the larynx
-Epiglottis is a cartilage lid that seals over the glottis when swallowing

What is the function of cilia and mucous? What happens to microorganisms that are trapped by the mucous?

What is the function of cilia and mucous? What happens to microorganisms that are trapped by the mucous?

Answer:

-The purpose of cilia is filtering and sweeping
-The purpose of mucous is to lubricate
-Microorganisms that are trapped by mucous go into the stomach and are destroyed there

Trace the pathway of respiration. (Extended Response)

Trace the pathway of respiration. (Extended Response)

1.) Nose - purifies air
2.) Nasal cavity - filters, moistens, and warms air
3.) Pharynx - passageway for air traveling
4.) Larynx - (voice box) produces sound on exhale
5.)Trachea - filters and moistens air
6.) Bronchi - air travels throughout right and left lungs
7.)Bronchioles - air passageways
8.) Alveoli - air diffuses and fills lungs

Explain the 3 types of respiration.

Explain the 3 types of respiration.

1.) External Respiration- inhale and exhale; exchange O2 and CO2 with lungs, body, and outside environment, then diffusion between the alveoli of lungs and capillaries of blood.

2.)Internal Respiration- diffusion of gases between cells and the surrounding lymph.

3.) Cellular Respiration- use of oxygen to release energy stored in cells.

Bill knows that corn yield peaks at about 150 bushels with approximately 125 units of fertilizer in his county. He also knows he can produce 25 bushels of corn without fertilizer. With this information, Bill knows that:

Bill knows that corn yield peaks at about 150 bushels with approximately 125 units of fertilizer in his county. He also knows he can produce 25 bushels of corn without fertilizer. With this information, Bill knows that:

Answer: anything more than 125 units of fertilizer would be wasted