Circulatory System

When blood that is rich in oxygen re enters the heart, the blood enters through the pulmonary valve. The pulmonary valve brings the oxygen rich blood to the pulmonary trunk of the pulmonary artery.

The aortic valve functions as a one-way valve between the heart and the rest of the body. Blood is pumped from the left ventricle of the heart, through the valve, and down the aorta, which in turn supplies blood to all of the organs in the body. Between heart contractions, the valve closes, preventing blood from flowing backwards into the heart. The function of the aortic valve is then twofold: (1) It provides a route for which blood can leave the heart, and (2) It prevents blood that has already left the heart from leaking backwards into the heart.

Yes they do.

Examples of nonvascular plants include mosses, liverworts, and hornworts. These plants lack specialized tissues for transporting water and nutrients, so they are typically found in damp environments where they can absorb water directly from their surroundings. Nonvascular plants reproduce through spores rather than seeds.

The circulatory system is composed of the heart, blood vessels, and blood. The heart pumps blood through blood vessels to transport oxygen, nutrients, hormones, and waste products throughout the body.

'c' heart pumps oxygen rich blood,

'a' oxygen rich blood arrives at capillaries,

'd' oxygen moves through capillary walls,

'b' oxygen enters body cells.

Vascular means pertaining to vessels which transport fluids (whether in plants or animals).

In plants, phloem and xylem are vessels that carry water and food through the plant.

In animals, arteries and veins carries blood

Severing the sympathetic nerves can help by interrupting the pain signals traveling to the brain from the left lower leg. This procedure can reduce the perception of pain in the affected area, allowing the individual to walk without experiencing severe pain.

Tiny blood vessels are called capillaries. They have thin walls that allow for the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues.

The air mixture in scuba diving tanks is typically compressed air, which consists of about 21% oxygen and 79% nitrogen. This mixture allows divers to breathe at depth without experiencing adverse effects of high pressure.

If the body's immune mechanism is not capable of fighting then the bacteria produces disease.

Blood type O lacks the antigen proteins of A and B. Blood type O is the universal donor.

Red blood cells are vital in our bodies because they are solely responsible for delivering oxygen to the organs in our body. If we didn't have any red blood cells, we wouldn't last 5 seconds because our organs will shut down due to oxygen deprivation.

Red blood cells contain an important component called Hemoglobin. This protein contains iron and carries oxygen. The lungs play an important role because they allow oxygen to diffuse into the blood cells. The blood cells are then pumped along with the rest of the blood throughout the body where they transfer the oxygen to each of our organs.

Neither! Protists are mainly simple organisms made of a single cell. They are small enough to obtain their oxygen and remove wastes by diffusion. Diffusion is also rapid enough to distribute substances inside the cell. Therefore a circulatory system is not needed. No a fucn circulkatory sdmaskjofnmdsijp fadsm [fas fcds

See http://en.wikipedia.org/wiki/Protist

However Fungi are not protists.

White blood cells are the "army" of the circlulatory system-they guard against infection, fight parasites, and attack bacteria. Red blood cells only transport oxygen. White blood cells have more function. There are different kinds as well including phagocytes, allergy attacking cells, and a special class known as lymphocytes which prouce antibodies that are proteins that help destroy pathogens. I hope this helped a little.

The bodily system consisting of the heart, blood vessels, and blood that circulates blood throughout the body, delivers nutrients and other essential materials to cells, and removes waste products. Also called cardiovascular system.
Circulatory system is the transportation system, made-up of Heart, Arteries, and veins.

White blood cells are a crucial part of the immune system and are responsible for fighting off infections and foreign invaders in the body. They help to identify and destroy pathogens such as bacteria, viruses, and fungi, helping to keep the body healthy and protected. There are different types of white blood cells, each with specific functions in the immune response.

The autonomic nervous system, dividing into sympathetic and parasympathetic nervous systems, controls the involuntary life-sustaining functions of the body. It controls heart rate (keeping the heart beating properly), blood pressure (through vasoconstriction and vasodilation), adrenaline release for glycogen breakdown to glucose to aid fight-or-flight responses, digestive system parastalsis, and even glandular release for digestion, immune response, etc., interacting with other hormone systems.

The central nervous system interacts with the skeletomuscular system via motor control, as well as reflex feedback. It receives sensory input, processes it, and responds.

Since a critical part of the brain is the hypothalamus, and the hypothalamus interacts with and controls the pituitary gland (the master gland of the endocrine system that controls all of the body's hormone systems), the brain also controls the endocrine system.

Feudalism is the name of the system where nobles granted land (fiefs) to vassals in exchange for military or other services. This hierarchical system governed medieval society in Europe.

Hemoglobin is located inside red blood cells because it needs to be contained within the cell to prevent it from leaking out into the plasma. This containment ensures efficient oxygen transport through the bloodstream, as the red blood cell membrane acts as a barrier that allows for controlled gas exchange. Having hemoglobin inside red blood cells also helps to optimize the oxygen-carrying capacity of the blood.

well..

what i know is that homeostasis greatly depends on so many factors.

I can give two systems: central nervous system and endocrine system.

CNS maintains and regulates all body processes. For this matter it is responsible for endocrine system to actively work. On the other hand, the endocrine system pertains to hormones that aids the body's internal activities. The reproductive system greatly interacts with CNS and endocrine systems in order to maintain homeostasis. Malfunction of these systems can affect a person's reproductive system.

Please research on the relativity of the three systems for scientific basis.

This is the best answer i can give. I hope it is relevant to the question.

-butz-

Golgi body (Golgi apparatus) works with other organelles in the cell as if the cell is a factory. The nucleus is the main office and makes blueprints for the cell to make proteins. The mitochondria are the power plants of the cell. The ER is the factory floor and makes proteins. The Golgi is shipping and receiving. The vacuoles are the trash bins of the factory.

As you know that the brain is like the head of our body, the brain is connected to thousands of tiny vessels and nerves. The stomach also is connected to the tiny vessels and nerves through which, the brain sends messages to the digestive system in whole. As the messages reach the digestive system, the system starts the work.The food travels from the mouth to the buccal cavity to the oesophagus to the stomach to the small intestine and then the large intestine and in the end, to the rectum and anus. The food travels a whole of about 12 metres in our body to get digested in 2 days. But, the reaction of fat storage in the body starts after 3 hours of the food intake.