What happens as waves travel and objects in their path move?

Tetanus is a(n): a. muscle contraction of sustained force resulting from repeated action potentials.b. contraction where the mus

Natali5045456 [20]

Answer: muscle contraction of sustained force resulting from repeated action potentials. (Option A)

Explanation: Tetanus is also called physiologic tetanus. Tetanus refers to the contraction of the muscle, which is established when the motor nerve that supply nerves to a skeletal muscle produces action potentials at a very high degree.

However, tetanic contraction is usually a normal process (such as when carrying a heavy box). Also, muscles can be shorten, lengthen or remain constant length during tetanic contractions.

7 0

4 years ago

Consider this animal cell. Which organelles are labeled g

Mashcka [7]

That organelle is the mitochondria

7 0

4 years ago

Read 2 more answers

Which of the following is true about RNA?

kakasveta [241]

Answer:

the right answer is

tRNA bonds with mRNA, bringing in amino acids.

Explanation:

7 0

3 years ago

Describe all muscle tissues, including cell shape, layers, intercellular connections,

zmey [24]

<h2>Description of muscle tissues. </h2>

Explanation:

There are three types of muscle tissue are cardiac, smooth, and skeletal.

1. Cardiac muscle tissue: It is located in the walls of the heart.

They appear striated.

Control is involuntary.

Function: To pump blood through the blood vessels in your body.

2. Smooth muscle tissue: It is located in walls of hollow visceral organs, except the heart.

They appear spindle-shaped.

Control is involuntary.

Function: To move food through the digestive tract.

To regulates air flow in lungs.

3. Skeletal muscle tissue: It occur in muscles which are attached to the skeleton.

They appear striated.

Control is voluntary.

Function: To support the body.

It makes bones and other body parts move.

Cell shape : There are different shapes of cells which are as follows:

1. Squamous 2.Cuboidal 3. Columnar 4. Polygonal 5. Stellate

6. Spheroid 7. Discoid 8. Fusiform 9. Fibrous.

Muscular layer: The muscular layer is present in many organs in the vertebrate body.

It is responsible for peristaltic movement in body.

There are two layers of muscle.

1. Inner 2. Outer layer.

Inner layer: The muscle of the inner layer is arranged in circular rings around the tract.

Outer layer: the muscle of the outer layer is arranged longitudinally.

Intercellular connections or junctions: These are the structures which provide adhesion and communication between cells.

There are mainly three types of junctions:

1. Tight junctions: It help to stop substances from leaking across a tissue.

2. Adhering junctions: It perform the function of cementing so as to keep neighbouring cells together.

3. Gap junctions: It facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells, for rapid transfer of ions, small molecules and sometimes big molecules.

7 0

3 years ago

All of the statements about Rooseveltâ€™s group of advisers known as the ""Brains Trust"" are true EXCEPT what ?

SIZIF [17.4K]

Answer:

the "Brain Trust" believed that large corporations needed to be directed by the government.

Explanation:

The term Brain Trust has a wider application know and it is attributed to the people who are trained in a particular field and advice decision-makers in their area of expertise. However, the term is more popularly known for the group of informal advisers of Franklin Roosevelt who worked closely with the President to shape the policies and programs during his term. And the idea that the "Brain Trust" believed that large corporations needed to be directed by the government was not advocated.

5 0

3 years ago