1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Agata [3.3K]
3 years ago
9

The first sphincter encountered in the alimentary canal is the: The first sphincter encountered in the alimentary canal is the:

pyloric sphincter. ileocecal sphincter. gastroesophageal sphincter. upper esophageal sphincter.
Biology
1 answer:
Arte-miy333 [17]3 years ago
4 0

Answer:

The correct answer is: upper esophageal sphincter.

Explanation:

The alimentary canal is a very long tract responsible for the digestion of the food. It is composed of several organs with many different and important functions. The alimentary canal also has a few sphincters, which are muscular valves that open and close when needed for the food to pass or be retained.

The first sphincter is the upper esophageal sphincter. One particularity of this sphincter is that is one of the few sphincters in the body that opens and closes under our conscious control, which happens when we decide to swallow our food.

From the first to the last, the order of the sphincters in the gastrointestinal tract is: upper esophageal sphincter, lower esophageal sphincter or gastroesophageal sphincter, pyloric sphincter, ileocecal sphincter, and anus.

You might be interested in
15 POINTS<br> plz help me<br> WILL GIVE BRAINLIEST
iVinArrow [24]
Umbilical cord and haploid
5 0
3 years ago
Read 2 more answers
1. Why is the water molecule so important to organisms?
Oksana_A [137]

Answer:

the waters acts as a solvent for chemical reactions and also helps transport dissolved compounds in and out of cells.

6 0
3 years ago
I need help please asap ​
ruslelena [56]

Answer: the canine parvovirus infection is digestive

giardiasis is also digestive

tracheobronchitis is respitory

feline viral rhinotracheitis respitory

coccidios im pretty sure that is digestive

Explanation:

3 0
2 years ago
Pls help its due tonight aa
Andre45 [30]

Those mutated genes are most commonly recessive. Females have two X chromosomes so they can have a chromosome with the mutated gene and one with the healthy gene. The healthy gene is dominant so the disease won't manifest, and the woman is only a carrier. Males have only one X chromosome and an Y chromosome. If they have the mutated gene on the X chromosome they won't have another X chromosome with the healthy gene.

To summarize, men can't be carriers and they only need one copy of the mutated X-linked gene while women need two copies of the mutated gene.

3 0
3 years ago
Why do different organisms live in different habitats?
jolli1 [7]

Every organism has a unique ecosystem within which it lives. This ecosystem is its natural habitat. This is where the basic needs of the organism to survive are met: food, water, shelter from the weather and place to breed its young. All organisms need to adapt to their habitat to be able to survive.

4 0
3 years ago
Other questions:
  • Diego is studying compost. He conducted an experiment to see how moisture levels affect the breakdown of organic materials in co
    6·2 answers
  • Japanese honeysuckle is found in the United States. It outcompetes other plants by blooming early and dying off late. This is an
    7·1 answer
  • Formation of glutathione
    5·1 answer
  • The picture shown is a food chain found in the Grand Basin desert in Nevada. Suppose a company that makes snakeskin wallets sets
    7·2 answers
  • What is a cells power plant
    5·2 answers
  • Like all cells, the neurons' internal organization dictates its function. Neurons have relatively many mitochondria, an extensiv
    14·1 answer
  • Explain why it is important to be skeptical of statistical results reported in the media.
    14·1 answer
  • Explain why both unisexual and bisexual flowers can self pollinate.​
    14·2 answers
  • What is point source pollution?
    7·2 answers
  • The energy in molecules has been stored in the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!