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
stira [4]
3 years ago
10

ALOT OF POINTS PLEASE HELP

Health
2 answers:
Verizon [17]3 years ago
4 0
A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.
MaRussiya [10]3 years ago
4 0

A muscle contraction is triggered when an action potential travels from the nerves to the muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.

You might be interested in
The pectoralis minor muscle is an important landmark in identifying and describing neighboring structures in the chest and axill
Blababa [14]

Answer:

Option (E).

Explanation:

Pectoralis minor muscles is a thin and flat muscle that present underneath the pectoralis major muscles. The neighboring structures of chest and axillary regions can be identified by the pectoralis minor muscle.

The second part of the axillary artery lies deep into the muscles. This divides into three parts medial, lateral and deep. The muscle is originated from the lateral to the coastal cartilage.

Thus, the correct answer is option (E).

8 0
3 years ago
Please someone help me
grigory [225]
Try c maybe , i’m not too sure sorry love. hope it kindaaa helps xxo
7 0
3 years ago
What takes place when you inhale and exhale
Hatshy [7]
Breathing In (Inhalation)

When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity, into which your lungs expand. The intercostal muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.

As your lungs expand, air is sucked in through your nose or mouth. The air travels down your windpipe and into your lungs. After passing through your bronchial tubes, the air finally reaches and enters the alveoli (air sacs).

Through the very thin walls of the alveoli, oxygen from the air passes to the surrounding capillaries (blood vessels). A red blood cell protein called hemoglobin (HEE-muh-glow-bin) helps move oxygen from the air sacs to the blood.

At the same time, carbon dioxide moves from the capillaries into the air sacs. The gas has traveled in the bloodstream from the right side of the heart through the pulmonary artery.

Oxygen-rich blood from the lungs is carried through a network of capillaries to the pulmonary vein. This vein delivers the oxygen-rich blood to the left side of the heart. The left side of the heart pumps the blood to the rest of the body. There, the oxygen in the blood moves from blood vessels into surrounding tissues.

(For more information on blood flow, go to the Health Topics How the Heart Works article.)

Breathing Out (Exhalation)

When you breathe out, or exhale, your diaphragm relaxes and moves upward into the chest cavity. The intercostal muscles between the ribs also relax to reduce the space in the chest cavity.

As the space in the chest cavity gets smaller, air rich in carbon dioxide is forced out of your lungs and windpipe, and then out of your nose or mouth.

Breathing out requires no effort from your body unless you have a lung disease or are doing physical activity. When you're physically active, your abdominal muscles contract and push your diaphragm against your lungs even more than usual. This rapidly pushes air out of your lungs.

The animation below shows how the lungs work. Click the "start" button to play the animation. Written and spoken explanations are provided with each frame. Use the buttons in the lower right corner to pause, restart, or replay the animation, or use the scroll bar below the buttons to move through the frames.
8 0
3 years ago
Read 2 more answers
Mucous membranes are present in all of the following areas of the body
beks73 [17]

Answer:

B. Surface of the skin

Explanation:

If we had mucous on the surface of our skin then our skin would have a thick slippery fluid like substance on it all of the time. Mucuos membranes are present in the digestive tract, mouth, lungs, and more.

6 0
2 years ago
Read 2 more answers
What is a higher blood pressure, 145/60, or 145/70
Zolol [24]
145/70 is a higher blood pressure
8 0
3 years ago
Other questions:
  • The stomach differs anatomically from other organs of the alimentary canal because it has an additional oblique layer of muscula
    11·1 answer
  • What do women need to take to help develop the brain and spine of her fetus?
    12·1 answer
  • While some parents consider themselves to be their child’s friend, many parents believe that a parent should behave as a parent
    7·1 answer
  • Write any other facts you've learned about tobacco use
    12·2 answers
  • PLEASE HELP ME I WILL MARK AS BRAINLIEST
    7·1 answer
  • What are the 2 anaerobic systems
    10·2 answers
  • Before you ride a bike, you should use a ________ to make sure that the bike is safe to ride.
    14·2 answers
  • What are the three parts that define empathy
    9·1 answer
  • Piaget's stages of cognitive development in order are formal operational, sensorimotor, concrete operational, preoperational sen
    10·1 answer
  • Prompt
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!