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
Daniel [21]
3 years ago
13

Impulses originating in the part of the brain called the medulla would most directly affect which body structure?

Biology
1 answer:
gtnhenbr [62]3 years ago
5 0

The question is incomplete. The complete question is:

Question: Impulses originating in the part of the brain called the medulla would most directly affect which body structure?

a. A leg muscle

b. A ligament

c. An arm bone

d. The heart

Answer:

d. The heart

Explanation:

The medulla oblongata contains a number of reflex centers for regulating vital body functions such as heartbeat, breathing, and vasoconstriction. The medulla contains several nuclei, a collection of neuronal cell bodies.

For example, impulses originated in the cardiovascular center regulates the rate and force of the heartbeat and the diameter of blood vessels. Impulses from the cardiovascular center flow along sympathetic and parasympathetic neurons. An increase in sympathetic stimulation from the cardiovascular center of medulla increases heart rate and contractility while a decrease in sympathetic stimulation decreases heart rate and contractility.

You might be interested in
Enzymatic breakdown of which of the following compounds doesn’t begin until it reaches the stomach?
ahrayia [7]

Answer:

B. Proteins

Explanation:

Salivary amylase is an enzyme that starts the breakdown of starch in the mouth. Gastric glands of the stomach secrete gastric juice, which contains HCl to kill bacteria and denatures proteins, intrinsic factors, and the enzyme pepsin. The chief cells of gastric glands secrete pepsinogen (an inactive form of pepsin).

Pepsin begins the digestion of proteins in the stomach. It breaks down certain peptide bonds between amino acids and thereby, breaks down protein chain into smaller peptide fragments. Pepsin requires a very acidic environment of the stomach (pH 2) and becomes inactive at a higher pH.

5 0
3 years ago
write a paragraph describing the impact Carbon on our global temperatures include the terms carbon sink carbon Source ocean acid
kozerog [31]

Answer:

Global warming is caused by the greenhouse effect caused  by greenhouse gases, such as carbon dioxide, in the earth's lower atmosphere. A release of carbon dioxide into the atmosphere by carbon sources such as fossil fuel burning increases the greenhouse effect hence increased global warming. Another effect of higher carbon dioxide levels in the atmosphere is oceans acidification.  The oceans will absorb more carbon dioxide and form more carbon acid hence lowering the pH of the waters. To alleviate this phenomenon, carbon sinks need to be protected such as forest because they sequester carbon dioxide from the atmosphere and store it as carbohydrates in their biomass.  

Learn More;

To understand more on global warming checkout;

brainly.com/question/9231468

brainly.com/question/7824762

#LearnWithBrainy

5 0
3 years ago
Which of these is NOT a solution that will reduce run-off water pollution: A) Farmers switching from chemical to organic fertili
Sergeu [11.5K]

Answer:

B

Explanation:

Oil from gas and cars does not contribute much to run off pollution. It mostly pollutes the air as it is used.

5 0
3 years ago
What would indicate that a bacteria species that is successfully stained purple by a gram stain?
goldfiish [28.3K]

Answer:

Gram positive; Contain thick mesh wall of peptidoglycan in cell wall.

Explanation:

  • Gram staining technique is used to separate the gram positive and gram negative bacteria on the presence or absence of thick layer of peptidoglycan in cell wall.
  • If a bacteria contain thick layer of peptidoglycan in cell wall it will retain the primary stain crystal violet (purple) and known as gram positive bacteria.
  • If bacteria don't have thick layer of peptidoglycan in cell wall the stain will wash out and it will give the pink color known as gram negative bacteria.
  • Peptidoglycan is glycoprotein or Glucose+Protein.

5 0
3 years ago
Would a freshwater pond be considered as a community or an ecosystem ?
denpristay [2]

Answer:

It would be an ecosystem pretty sure

Explanation:

3 0
2 years ago
Other questions:
  • What is the most effective way to increase the oxygen content of air ?
    13·1 answer
  • What is the difference between an autotroph and a heterotroph?
    14·1 answer
  • Which of the following does cell theory propose
    15·1 answer
  • What are some of the Non-market, Environmental values of trees?
    9·1 answer
  • What is process of CONDENSATION?
    14·1 answer
  • Living and nonliving things that could affect the fish population?
    13·2 answers
  • John, an American employee in Asia, is making eye contact during a meeting to show interest. However, Cho, an Asian employee, wh
    6·1 answer
  • Which is a step of the scientific method in environmental science? A. Testing a hypothesis B.Carrying out research C.Collecting
    5·1 answer
  • What’s a characteristic of windward
    5·1 answer
  • A group of similar cells that perform a common function
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!