How do the muscles of thelegs and of the feet contributeto the venous return?

Q: Which structures compose the pulmonary circulation? Which compose the systemic circulation?

A: Pulmonary circulation mainly moves the blood between heart and lungs whereas systemic circulation…

Q: Do the pulmonary arteries carry oxygenated blood or deoxygenated blood? What features of the…

A: Human heart is the Center for regulating blood across the body. It is located within the thoracic…

Q: What is the function of pulmonary circulation?

A: The circulatory system is made of the following systems that work together; the cardiovascular,…

Q: Which abdominal vessels drain straight into the inferior vena cava?

A: The circulatory system is made of the following systems that work together; the cardiovascular,…

Q: What is the vital capacity (VC)?

A: Step 1 Human respiratory organs are a pair of lungs. They are located inside the thoracic cavity,…

Q: Explain how muscular activity and venous valves aid venous return.

A: The skeletal muscle contractions will compress the venous vessels and forcing the blood centrally…

Q: During the first few hours after a meal, how does the chemical composition of blood change as it…

A: Answer: Introduction: Liver sinusoids are little pressure vascular channels which obtain blood by…

Q: Describe what a baroreceptor is, and explain why such receptorsare important features in the ability…

A: By altering cardiac activity, changes in blood flow influence arterial pressure. The central venous…

Q: What are Chemoreceptors?

A: There are different kinds of sensory receptors present in our body that help us in the perception of…

Q: What is the importance of the azygos system relative to the inferior vena cava?

A: The azygos is a vein transports system that helps to move the deoxygenated blood from the posterior…

Q: What are the Effects of sympathetic nerves and plasma epinephrine on the arterioles in skeletal…

A: Central nervous system (CNS), and the peripheral nervous system (PNS) are two main parts of the…

Q: How much oxygen is present in systemic venous and systemicarterial blood?

A: In human beings, the circulatory system is called as the cardiovascular system or the vascular…

Q: Why is there a decrease in vital capacity with age?

A: Vital capacity is the maximum amount of air that can be inhaled or exhaled from the lung.

Q: Is Elastance the reciprocal of compliance? Explain how?

A: Ventilation is the process by which oxygen is pulled into the lungs, which eliminates the carbon…

Q: What are the blood vesselsthat carry venous blood to theheart? What is the bloodvessel that collects…

A: The heart is the muscular organ that involves in pumping action of blood to all parts of the tissue.…

Q: What are chemoreceptors? Where are they located?

A: Chemoreceptors-It is a special type of sensory receptor cells which change a chemical materials (…

Q: What is Arterial Baroreceptors?

A: Arterial baroreceptors are stretch receptors that are stimulated when pressure changes occurs in…

Q: How does pulmonary circulation differ from systemic circulation?

A: Step 1 Double circulation involves the passage of blood twice through the heart, one to the lungs…

Q: What is the force driving venous return?

A: * Veins are blood vessels which return blood to the heart. * The pressure in these veins is the…

Q: How do the baroreceptors regulate arterial blood pressure?

A: Arterial blood pressure is regulated within a normal range normally, ranging from 85 to 100 mmHg in…

Q: What is the stage of thecardiac cycle during which theventricles are filled?

A: The cardiac cycle is the sequence of events that occurs when the heartbeats. One cardiac cycle is…

Q: What does the circulatory system distribute to the body as it works with the respiratory system?​

A: The circulatory system refers to the cardiovascular system of the body that includes organs that…

Q: what structure prevents food from entering the windpipe?

A: The trachea is often called the windpipe. It's a key part of our respiratory system. When we breathe…

Q: What is the function of the smooth muscle in the adventia of the inferior vena cava?

A: Inferior vena cava is responsible in collecting deoxygenated blood from the lower part of the body…

Q: What is bulbus arteriosus?

A: Chordates are the organisms that exhibit some common features at any stage of their life cycle. Some…

Q: Why does the inspiratory muscles prevent the lungs from collapsing?

A: The primary inspiratory muscles are the diaphragm and external intercostals. In order to promote…

Q: What is the function of trachealis muscle?

A: The trachea is a wide, hollow tube that allows the passage of air from the larynx to the bronchi of…

Q: What is the function of theright ventricle? To where doesthe right ventricle pump thevenous blood?

A: The heart is a muscular organ that pumps blood throughout the body. It is located in the middle…

Q: How is breathing improved if the smooth muscle of the bronchial tree relaxes?

A: The respiration is carried out by the respiratory system. The respiratory system consists of the…

Q: Where are the two main sensory receptors for blood pressure located? What is significant about these…

A: Blood pressure -  Blood pressure is defined as the pressure created by the blood on the walls of the…

Q: Which are the vessels thatdrain filtered blood from thekidneys?

A: Kidneys play the primary role in urine production, but they have a role in regulating crucial blood…

Q: What do the collective action of the accessory muscles of expiration causes?

A: There are various associated muscles which contribute mechanically for a proper exhalation and…

Q: immediately before expulsion, which of the following cardinal movements occur? *

A: D. External rotation.

Q: What are the functions of the pulmonary circulation and of the bronchial circulation?

A: Circulation is the phenomenon in which the blood is moved from one part of the body to another via…

Q: What are the carotid and aortic bodies are composed of?

A: Peripheral chemoreceptors sense changes in chemical concentrations through sensory extensions of the…

Q: How does blood pressure in the pulmonary circulation compare to the pressure in the systemic…

A: The pulmonary circulation is a relatively low-pressure system as compared to systematic circulation…

Q: Which vessels is where gas exchange occurs

A: Air enters into the body through the nose or mouth. It moves to the pharynx and then passes into the…

Q: Which structures in the lungs contain a higher percentageof smooth muscle?

A: Respiration is the process through which oxygen and carbon dioxide are exchanged between the…