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
olga55 [171]
4 years ago
6

A college student wakes up and notices a racing heart and dilated pupils. The student is scheduled to write an exam later that m

orning. Which system is responsible for this physiological response?A. Cardiovascular irregularity.B. Sympathetic nervous system.C. The release of dopamine.D. Autonomic nervous system.
Biology
1 answer:
kozerog [31]4 years ago
4 0

Answer:

Sympathetic nervous system

Explanation:

Under stress conditions, the sympathetic division of the autonomic nervous system prepares the body by exhibiting flight or fight response. It includes some physiological changes in the body during stress conditions such as before and during exams.

Some of the physiological responses of the sympathetic nervous system are rapidly pounding, dilated pupils of eyes, deep breathing, dry mouth, and sweaty skin. It also shunts the blood circulation towards active skeletal and cardiac muscles. Dilation of bronchioles to increase ventilation to facilitate the delivery of more oxygen to the body cell is another change stimulated by the sympathetic nervous system. Therefore, the mentioned responses are due to the activation of the sympathetic nervous system of the student since he is in the stress of the exam.

You might be interested in
Which parts of Earth are most similar to the plate with an axis angle of 80°?
AlladinOne [14]

Answer:

The answer is below

Explanation:

The lines of latitude run from the east to the west and is used to measure the distance from the north to the south of the equator. There are different lines of latitude such as the equator (0°), north pole (90° N), south pole (90° S).

The North and South poles are most similar to the plate with an axis angle of 80° because sunlight hits these points at least at an axis angle of 80.

6 0
3 years ago
Question 6
Vlada [557]

Answer:

Dibeast is an animal control officer who is often has to capture Ms. Snoozer’s birds.

Explanation:

Because that is the most useful peace of evidence

5 0
3 years ago
Each muscle fiber contains tiny threads called _____, which are made of myosin and actin.
Gwar [14]
Myofibrils are the building blocks or contractile unit of each muscle fiber. The tiniest functional unit of skeletal muscle, the sarcomere, is found in the myofibrils and is made up of protein filaments: actin (thin) and myosin (thick).
7 0
4 years ago
Read 2 more answers
Changes in the DNA sequence, or mutations, help drive
Bezzdna [24]
I remember answering this question as "revolutionary change"
6 0
3 years ago
Read 2 more answers
The original gene for the production of a human hormone was most likely removed from a
natali 33 [55]
Chromosome is the answer
5 0
3 years ago
Other questions:
  • Bacillus anthracis, the bacterium that causes the deadly disease anthrax produces thick endospores. What is the significant role
    13·1 answer
  • How do plant cells differ from animal cells structurally?
    14·2 answers
  • Which of thses. Relies on a renewable natural resources to produce energy
    8·2 answers
  • Species with broad niches
    14·2 answers
  • What are three ways that minerals are used?
    8·2 answers
  • Can someone please Define Transgenic for me
    11·1 answer
  • Do all for brain liest :DDDD
    15·1 answer
  • Làm sao bảo quản để bánh không lên
    10·1 answer
  • List the three layers of the rainforest
    15·2 answers
  • The remains of living plants or animals are called fossils. <br> True <br> False
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!