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
Aleonysh [2.5K]
3 years ago
7

Which of the following statements is not true? In late adulthood, people start to lose nerve cells. In late adulthood, people sh

ow slowed nerve impulse transmission. In late adulthood, there is a decrease in nerve conduction velocity. All of the above are true.
Biology
1 answer:
Helen [10]3 years ago
3 0

Answer:

All of the above are true.

Explanation:

The structure and function of components of the nervous system are altered by the process of aging. In late adulthood, there is alteration in the neuromuscular junction and the nerve conduction velocity is also reduced.

The age-related slowed response of the nervous system is a result of the loss of nerve fibers from the peripheral nerves with aging. Both myelinated and non-myelinated nerve fibers of the peripheral nervous system are affected by aging and are lost resulting in slowed conduction of nerve impulse.

You might be interested in
What is the transcription of DNA: T A C C G C T C C A G G G T C G A C A A T A C C C T A A T T?
Igoryamba
A T G G C G A G G T C C C A G C T G T T A T G G G A T T A A
6 0
3 years ago
Read 2 more answers
Nina was almost hit by a bus. However, she is okay and her parasympathetic system is responding accordingly. It is: Please choos
Ahat [919]

Answer:d) contracting her pupils and increasing secretion of stress hormones.

Explanation:

Peripheral nervous system consists of 3 major neuronal levels: vegetative (reticular formation and brain stem), limbic system and neocortical level. The RAS is the link between the brain and the spinal cord.

Brain stem consists of pons, medulla oblongata and mesencephalon. Brain stem is responsible for involuntary functions such as heart beat, respiration and vasomotor activity. Limbic system represents the emotional control center. It consists of thalamus, hypothalamus and pituitary gland and maintains homeostasis. Neocortical part processes sensory information and regulates emotional responses.

Autonomic nervous system (ANS) regulates visceral activities and organs (circulation, digestion, respiration and temperature). ANS has two divisions: sympathetic and parasympathetic nervous system.Parasympathetic nervous system regulates homeostasis via the release of acetylcholine (Ach). Parasympathetic nervous system is responsible for energy conservation and relaxation.

There are three stages in the stress response: immediate effects of stress, intermediate effects of stress and prolonged effects of stress.

7 0
3 years ago
The mineral magnetite is generally black or dark gray, with a metallic luster.
SSSSS [86.1K]

Answer:

Magnetite is black or brownish-black with a metallic luster, has a Mohs hardness of 5–6 and leaves a black streak.

5 0
3 years ago
1. What causes the inside of the cell to be more negative compared to the outside of the cell? Resting Potential, Action Potenti
sp2606 [1]

Answer:

Resting potential

Explanation:

This is because , the resting potential is negative in side of the cell because it has more negative charge inside than outside due to accumulation of alot of sodium and potassium ions. when an axon is at rest in the cell, the anions produce negative charge, the sodium pumps eject sodium out of the cell and potassium is injected in, and the sodium gates and potassium gates are all closed.

3 0
3 years ago
How is The environment on Mars different from that of Earth’s?
Pavlova-9 [17]

Answer:

  • Mars is about half the size of Earth by diameter and has a much thinner atmosphere, with an atmospheric volume less than 1% of Earth's. The atmosphere of Mars is about 100 times thinner than Earth's, and it is 95 percent carbon dioxide.
  • The atmospheric composition is also significantly different: primarily carbon dioxide-based, while Earth's is rich in nitrogen and oxygen.
  • Because of the differences in atmospheric densities and distances from the sun, the temperature within the atmosphere are also wildly different. Earth generally ranges from 14 degrees Celsius to 70.0 degrees, whereas Mars ranges from -146 degrees C to -140 degrees C.
  • Both planets have a silicate mantle surrounding their cores and a surface crust of solid material.
  • Earth and Mars’ both have terrains that varies considerably from place to place.

Explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • You are observing proteins in a lab for an experiment. During transport, they have started to unwind and lose their shape. You n
    13·1 answer
  • A spacecraft orbits 327 kilometers above the surface of Earth. Assume that the spacecraft passes over Earth's North and South Po
    8·1 answer
  • Is an avocado a vegetable or a fruit?
    14·1 answer
  • Regulation of expression of genes is important because: Group of answer choices A. some genes function in opposition to other ge
    6·1 answer
  • Select all that apply.<br> Which statements apply to "food"?
    8·1 answer
  • Which of the following lists includes only abuotic environmental factors
    15·1 answer
  • The stained Gram-positive bacteria appear _____ under the microscope.
    14·1 answer
  • DNA encodes proteins, specifying the amino acids that compose them. Which of the following is most similar to a protein as the p
    13·2 answers
  • Which of these is a female animal reproductive part that produces the eggs to be fertilized by the male sperm?
    15·2 answers
  • Someone pls help! I will choose brainleist!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!