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Burka [1]
4 years ago
7

What Are Blood vessels​

Biology
2 answers:
wariber [46]4 years ago
6 0

Answer:The blood vessels are the components of the circulatory system that transport blood throughout the human body.[1] These vessels transport blood cells, nutrients, and oxygen to the tissues of the body. They also take waste and carbon dioxide away from the tissues. Blood vessels are needed to sustain life, because all of the body's tissues rely on their functionality.[2]

There are five types of blood vessels: the arteries, which carry the blood away from the heart; the arterioles; the capillaries, where the exchange of water and chemicals between the blood and the tissues occurs; the venules; and the veins, which carry blood from the capillaries back towards the heart.

The word vascular, meaning relating to the blood vessels, is derived from the Latin vas, meaning vessel. Some structures – such as cartilage, the epithelium, and the lens and cornea of the eye – do not contain blood vessels and are labeled avascular.

elena-s [515]4 years ago
4 0

Answer:

\boxed{\mathrm{see \: below}}

Explanation:

Blood vessels are vessels that carry blood through organs and tissues. The five types of blood vessels are: arteries, veins, arterioles, capillaries, and venules. The main function of blood vessels is to carry blood throughout the body.

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Explain the differences in the vocabulary words given below. Then explain how the words are related. Use completed sentences in
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4 0
4 years ago
Kylie suspects the age of the skeletal remains that she found following an excavation to be older than 30. However, to conclude
LuckyWell [14K]

Answer:

C. Bone fusion

B. Skull sutures

Explanation:

When lacking information about the age of a specimen, you can apply different techniques using the skeleton to find out the approximate age of the individual.

Usually, teeth are useful in determining the age of the specimens. But in some species, age determination through these structures is not easy. It requires laboratory elements and a high degree of precision.

Another way to determine the age of an individual is by analyzing the fusion degree of different bones.

Let us think about the skull of an animal or a person. It is composed of many bones that fit all together in a perfect way. Each bone is closely related to the adjacent ones and is usually involved in the same functions -feeding, breathing, hearing, among others-. The limits between these bones are the <u>suture lines</u>.

In the early post-natal stages, these bones are free. They fit all together, but they are not fused. But with time, they begin a fusion process that completes in adulthood. This fusion process occurs in the sutures.

As a general pattern, groups of bones with the same function get fused at the same time. Each group develops and fuses in a particular chronological sequence and is related to the adaptation to the environment and the biological habits.

The degree of fusion of the suture is a reliable indicator to differentiate age stages.

7 0
3 years ago
An action potential causes calcium ions to diffuse from the ________ into the ________.
ella [17]

Answer:

B. sarcoplasmic reticulum ; sarcoplasm

Explanation:

A neural signal is the electrical trigger for calcium release from sarcoplasmic reticulum into the sarcoplasm. Electrical signals, called action potentials, travel along the neuron's axon connecting to individual muscle fibers at a neuromuscular junction. Neuron action potentials cause the release of neurotransmitters from the synaptic terminal into the synaptic cleft, where they can diffuse across the synaptic cleft and bind to a receptor molecule on the motor end plate.

8 0
3 years ago
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